Technical Program

Yield forecasting conundrums

Keith McIntosh. PV Lighthouse

Building the Future U.S. PV Manufacturing

Danielle Merfeld. Hanwha Qcells, Cartersville, GA 30121

The Critical Role of Recombination Characterization in High-Efficiency Silicon Technologies

Ronald Sinton. Sinton Instruments

Defect Emission in CdCl2-treated CdSe Thin Films

Abasi Abudulimu¹, Xiaoming Wang¹, Tyler Brau¹, Jaroslav KuliA², Scott L. Wenner¹, Adam B. Phillips¹, Ebin Bastola¹, Manoj K. Jamarkattel¹, Vijay C. Karade¹, Kiran Lamichhane¹, Aparajita Dixit¹, Bohuslav Rezek², Yanfa Yan¹, Michael J. Heben¹, Randy J. Ellingson¹. ¹Wright Center for Photovoltaics Innovation and Commercialization (PVIC), Department of Physics and A, Toledo, OH, USA.²Faculty of Electrical Engineering, Czech Technical University in Prague, Prague, CT, Czech Republic

Investigating the effects of processing conditions on carrier dynamics in single crystal CdTe:As grown by molecular beam epitaxy

Alex J. Ashley¹, Hongling Lott², Andrea T. Mathew², Eric Colegrove², Matthew O. Reese², Jason B. Baxter¹. ¹Drexel University, Philadelphia, PA, USA.²National Laboratory of the Rockies, Golden, CO, USA

Separation of Light and Bias Modification to CdTe Solar Cells

Megh N. Khanal, Priya S. Suryavanshi, Katherine Zaunbrecher, Lilly Quintana-Barrera, James Sites. Department of Physics, Colorado State University, Fort Collins, CO, USA

Nanoscale Investigation of Defects in CdCl2 Treated CdSe Thin Films

Xiaolei Liu, Zhaoxia Zhou, Jacques Kenyon, Rob Ellis, Kerrie Morris, Zeyad Elsayed, Sam Machin, Kieran Curson, Jake Bowers, Michael Walls. Loughborough University, Loughborough, United Kingdom

CdTe Solar Cells with In Situ Phosphorous Doping

Luis C. Infante-Ortega, Kara B. Kile, Kiran Lamichhane, Ebin Bastola, Prabodika N. Kaluarachchi, Zulkifl Hussain, Manoj K. Jamarkattel, Thomas Fiducia, Abasi Abudulimu, Ambalanath Shan, Sabin Neupane, Yanfa Yan, Nikolas Podraza, Randy J. Ellingson, Michael J. Heben, Adam B. Phillips. University of Toledo, Toledo, OH, USA

20.7% Efficient CdSeTe thin-film solar cells by ex-situ bismuth (Bi) doping

Sabin Neupane¹, Deng-Bing Li¹, Manoj Jamrkattel¹, Nicholas Miller², Kiran Lamichhane¹, Sanjeeb Budhathoki¹, Alisha Adhikari¹, Ujjwal Dhakal¹, Hamim Sharif¹, Ebin Bastola¹, Adam Phillips¹, Feng Yan³, James Becker², Randy Ellingson¹, Michael Heben¹, Yanfa Yan¹. ¹University of Toledo, PVIC, TOLEDO, OH, USA.²First Solar Inc, Perrysburg, OH, USA.³Arizona State University, Tempe, AZ, USA

Revolutionary copper metallization technology for terawatt PV industry

Tian He, Peng Li Li, Xin Dong, Haoran Qiu, Jun Duan, Yunpeng Li, Hua Wu, Xiaoning Ru, Lan Chen, Junxiong Lu, Xixiang Xu, Zhenguo Li, Liang Fang FangBo He. Central RaD Institute, LONGi Green Energy Technology Co., Ltd., Xia, China

Best Student Presentation Award Finalist - Characterization and Modeling of 24.3% Copper Contacted n-TOPCon Solar Cell with Screen Printable Copper Pastes

Ruohan Zhong¹, Vijaykumar Upadhyaya¹, Venkata Sai Aditya Mulkaluri¹, Sagnik Dasgupta¹, Wook-Jin Choi¹, Young Woo Ok¹, Kevin Elmer², Ruvini Dharmadasa², Erin Yenney², Apolo Nambo², Thad Druffel², Ajeet Rohatgi¹. ¹Georgia Institute of Technology, ATLANTA, GA, USA.²Bert Thin Films Inc, Louisville, KY, USA

Best Student Presentation Award Finalist - Critical look at the atmospheric Cu fire-through dielectric metallization for cost-effective and high efficiency silicon solar cells

Donald Intal¹, Sandra Huneycutt¹, Abasifreke Ebong¹, Ajeet Rohatgi², Vijay Upadhyaya², Sagnik Dasgupta², Ruohan Zhong², Thad Druffel³, Ruvini Dharmadasa³. ¹University of North Carolina at Charlotte, Charlotte, NC, USA.²Georgia Institute of Technology, Atlanta, GA, USA.³Bert Thin Films LLC, Louisville, KY, USA

Best Student Presentation Award Finalist - Microscopic Analysis of LECO-induced Modification of Ag-Polysilicon Contact Interface in Double-Side TOPCon Solar Cells

Wook-Jin Choi, Young-Woo Ok, Kwan Hong Min, Sagnik Dasgupta, Ruohan Zhong, Ajeet Rohatgi. Georgia Institute of Technology, Atlanta, GA, USA

Femtosecond UV-Laser Contact Opening for LECO Metallization in TOPCon Solar Cells

Thien Truong, William Nemeth, Steve Johnston, Jacob Slifka, David Young, Paul Stradins. National Laboratory of the Rockies, Golden, CO, USA

A contactless approach for tandem solar cell performance diagnostics

Shuai Nie¹, Yan Zhu¹Arthur Julien¹, Felix Gayot¹, Zubair Abdullah-Vetter¹, JoAll Wyttenbach², Carine Roux², Ziv Hameiri¹. ¹University of New South Wales, Sydney, Australia.²CEA INES, Le Bourget du Lac, France

Experimental Methods for Perovskite Mini-module Analysis

Claudia Buerhop-Lutz¹, Ones ghaffari¹, Shudi Qiu², Michael Wagner¹, Oleksandr Stroyuk¹, Christoph J. Brabec², Ian Marius Peters¹. ¹Forschungszentrum Juelich GmbH, HI ERN, Erlangen, Germany.²Friedrich-Alexander-UniversitAct Erlangen-NA¼rnberg, Faculty of Engineering, Department of Materials, Erlangen, Germany

Photoluminescence imaging of luminescent down-shifting layers in silicon solar cells

Anh Huy Tuan Le, Chang Sun, Yan Zhu, Ziv Hameiri. School of Photovoltaic and Renewable Energy Engineering, University of New South Wales, Sydney, Australia

Improved CdTe metallization through use of internal energy referencing in X-ray photoelectron spectroscopy

Ryan Muzzio¹, Christopher P. Muzzillo¹, Ed Sartor¹, Chungho Lee², Matthew O. Reese¹, Craig L. Perkins¹. ¹National Laboratory of the Rockies, Golden, CO, USA.²First Solar Inc, Santa Clara, CA, USA

Technical Considerations for Commercializing Perovskite Photovoltaic Modules – A review of observations from the PACT Center

Joshua S Stein¹, Laura T Schelhas², Timothy J Silverman², Bruce H King¹, Angelique Montgomery¹, Michael Owen-Bellini², Nick Irvin², Sona Ulinca², Michael Deceglie², Norman Jost¹, Daniel Riley¹, Byron McDanold², Joshua Parker², Dana Kern², Jackson Schall², Charles Robinson¹. ¹Sandia National Laboratories, Albuquerque, NM, USA.²National Laboratory of the Rockies, Golden, CO, USA

Towards Compatible Encapsulants for Industrial Perovskite-Silicon Tandem Modules

Chiara Barretta¹, Petra Christoefl¹, Marcel Kuehne², Markus Franke², Frans Op den Buijsch³, Roland Milatz³, Lisa Champault⁴, Quentin Jeangros⁴, Quiterie Emery⁵, Mark Khenkin⁵, Carolin Ulbrich⁵, Gernot Oreski^{1, 6}. ¹Polymer Competence Center Leoben GmbH (PCCL), Leoben, Austria.²Hanwha Q CELLS GmbH, Bitterfeld-Wolfen, Germany.³The Compound Company, Enschede, Netherlands.⁴Swiss Center for Electronics and Microtechnology (CSEM), Neuchatel, Switzerland.⁵Helmholtz-Zentrum Berlin fA¼r Materialien und Energie (HZB), Berlin, Germany.⁶Technical University of Leoben, Leoben, Austria

Halide Perovskite Phase Transitions. How They Work and How to Watch Them.

Jeffrey Christians. Hope College, Department of Engineering, Holland, MI, USA

Best Student Presentation Award Finalist - Improved Mechanical Robustness and Durability Enabled by Textured Wafers and Interlayers in Perovskite-Silicon Tandem Solar Cells

Muzhi Li¹, Mathilde Fievez², Zhengshan Yu², Nicholas Rolston¹. ¹Materials Science and Engineering, Fulton Schools of Engineering, Arizona State University, Tempe, AZ, USA.²Beyond Silicon, Tempe, AZ, USA

Screening Encapsulant Properties to Determine Compatibility with Metal-Halide Perovskite Solar Cells and Modules

Lucile M. Cerda^{1, 2}, Mostafa Othman¹, Oulaya Darbi¹, Lisa Champault³, Jonathan Champliaud³, Christian M. Wolff¹, Antonin Faes^{1, 3}, AAmcha Hessler-Wyser¹, Christophe Ballif^{1, 3}SoA UliA¹. ¹EPFL, NeuchActel, Switzerland.²ETHZ, ZA¼rich, Switzerland.³CSEM, NeuchActel, Switzerland

Field durability tests of perovskite solar cells loaded with fixed resistors

Takeshi Tayagaki, Sayaka Hirooka, Kohei Yamamoto, Takurou N. Murakami, Masahiro Yoshita. National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Japan

Impacts on backtracking energy generation from underlying terrain undulations and varying motor block size

William J. Hayes, Kendra Conrad, Kyumin Lee. Array Technologies, Inc, Albuequerque, NM, USA

Sensitivity of Bifacial PV Performance Loss Rate Estimates to Rear-Side Irradiance Sensor Type and Placement: A Field Case Study

Gustavo Nofuentes ¹, Jorge Aguilera¹, Emilio MuApoz-CerA³n¹, Douglas Lamas², Giuliano A. Rampinelli², Juan de la Casa¹. ¹PV IDEA Research Group, CEACTEMA, University of Jaen, Spain., Jaen, Spain.²Nucleo Tecnologico de Energia Eletrica, Federal University of Santa Catarina, Brazil, Ararangua, Brazil

Module-Level Performance Loss Rate Estimates for Bifacial and Monofacial PV Modules on Different Soils at a Low-Latitude Site

Douglas Lamas¹, Giuliano A. Rampinelli¹, Juan de la Casa², Jorge Aguilera², Emilio MuApoz-CerA³n²Gustavo Nofuentes². ¹Nucleo Tecnologico de Energia Eletrica. Federal University of Santa Catarina, Brazil., Ararangua, Brazil.²PV IDEA Research Group, CEACTEMA, University of JaAcn, Spain, Jaen, Spain

Performance Analysis of a DC-coupled PV-plus-storage Plant with Bifacial PV Modules

Yiwei Ma¹, Rabin Dhakal¹, Daniel Fregosi¹, Joe Thompson¹, Cameron Riley¹, Aminul Huque¹, William Hobbs². ¹EPRI, Palo Alto, CA, USA.²Southern Company, Atlanta, GA, USA

Analysis of Photovoltaic Fleet Performance during August 2020 Western US Heatwave

Bennet Meyers, Kirsten Perry, Dirk Jordan. National Laboratory of the Rockies, Golden, CO, USA

Opening Remarks

Ammar Nayfeh¹, Silvana Ovaitt ². ¹Khalifa University .²National Laboratory of the Rockies

Regional Solar & Research Spotlight

Dr. Thales Borrely, Dr. Badara Mbow, Wafa Al Naqbi, D. Hassan Abbas Khan, Rafsan Sayad.

Moderated Panel Discussion / Audience Q&A

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Closing Remarks

Ammar Nayfeh ¹, Silvana Ovaitt ². ¹Khalifa University .²National Laboratory of the Rockies

High-specific-power photovoltaics from stacked CVD-grown MoS2

Muhammad A. Abbas, Timothy Ismael, Teethiya Datta, Josh M. Sasson, Owen P. Harris, Miriam E. Lerner, Matthew D. Escarra. Tulane University, New Orleans, LA, USA

Selective Coating of MoS2 Transport Layer on Patterned-ITO Substrate by Modified Interfacial Assembly for PV Applications

Muntaser AlmansooriAmmar Nayfeh. Khalifa University, Abu Dhabi, United Arab Emirates

Effect of Graphene Doped PEDOT:PSS as a Hole Transport Layer on Organic Solar Cell Performance

Wafa Alnaqbi, Shanavas Shajahan, Yarjan Abdul SamadAmmar Nayfeh. Khalifa University, Abu Dhabi, United Arab Emirates

Exceptionally Bright Near-Band-Edge Emission in an Earth-Abundant, Defect-Tolerant Semiconductor

Smitakshi Goswami¹, Zhenkun Yuan¹, Genevieve Amobi², Sita Dugu³, Gideon Kassa¹, Kirill Kovnir², Geoffroy Hautier^{1, 4}, Sage Bauers³, Jifeng Liu¹. ¹Dartmouth College, Hanover, NH, USA.²Iowa State University, Ames, IA, USA.³National Lab of the Rockies, Golden, CO, USA.⁴Rice University, Houston, TX, USA

Durable and Multi-functional Anti-Reflection Coatings for Solar Photovoltaic Cover Glass

Shandon D. Hart¹, Steven A. Yamada¹, Lin Lin¹, Peng Chen¹, Dong-gun Moon², Tae-young Kim², Ji-man Lee², Ananth Subramanian¹, Nicholas M. Walker¹, Fred Woodall¹, Binwei Zhang¹, Alexandra L. Mitchell¹, Carlo Kosik Williams¹, Jaymin Amin¹. ¹Corning Incorporated, Corning, NY, USA.²Corning Precision Materials Co. Ltd, Asan-si, Chungcheongnam-do, South Korea

Scalable Nanogap Fabrication and Non-Destructive Metrology for Near-Field Thermophotovoltaic Devices

Yuting Li, Yeonghoon Jin, Debarati Sen, Titilope Dada, Eric Tervo. University of Wisconsina, Madison, WI, USA

Tunable Organic Photovoltaic Module Platform for Photoelectrochemical Fuel Production

Luke McClintock, Zebulon Schichtl, Reilly Seban, Bryon Larson, Emily Warren. National Laboratory of the Rockies, Golden, CO, USA

Applications of III-V Thermoradiative Diodes

Michael P. Nielsen, Valerii Radchenkov, Shimul Kanti Nath, Martin Zlatinov, Stephen Bremner, Nicholas J. Ekins-Daukes. UNSW, Sydney, Australia

Albedo-Assisted Bifacial Operation of Single-Junction Triple-Cation Perovskite Solar Cells

Atanu Purkayastha, Anuj Kumar Palariya, Anurag Dehengia, Satish Patil, Sushobhan Avasthi. Indian Institute of Science, Bengaluru, India

Multifunctional luminescent coating for space photovoltaic applications

Sergey Sarkisov¹Darayas Patel², Alexandre Fedoseyev¹. ¹SSS Optical Technologies, LLC, Huntsville, AL, USA.²Oakwood University, Huntsville, AL, USA

Toward Defect-Engineered Photovoltaic Devices: Insight Into Combined Theoretical And Experimental Approach For Transparent Hole Collector / Active Organic Layer Interface Creation

Aleksandra Tomaszowska¹, Paulina Powroznik¹, Aleksandra Przybyla¹, Yuri Ardesi², Fabrizio Mo^{2, 4}, Gianluca Piccinini², Mariagrazia Graziano3³, Maciej Krzywiecki¹. ¹Institute of Physics a, Gliwice, Poland.²Department of Electronics and Telecommunications of Politecnico di Torino, Turin, Italy.³Department of Applied Science and Technology of Politecnico di Torino, Turin, Italy.⁴National Institute for Metrological Research (INRiM), Turin, Italy

Optimizing Practical Applications of Downshifting Technology in Commercial Solar Cells

Minh Tien Tran, Mingzhe Guo, Martin Green, Jessica Yajie Jiang. University of New South Wales, Sydney, Australia

Toward Scalable Free-Space Luminescent Solar Concentration

Mathis Van de Voorde, Twan Kalthof, Jelle Westerhof, Lisanne Einhaus, Rebecca Saive. University of Twente, Enschede, Netherlands

Alloy Engineering of BaZrS3 Chalcogenide Perovskite

Kiruba Catherine Vincent¹, Shubhanshu Agarwal¹, Rohan Nalumachu¹, Kim Kisslinger², Rakesh Agrawal¹. ¹Purdue University, West Lafayette, IN, USA.²Brookhaven National Laboratory, Upton, NY, USA

Combining computational screening and experiment to discover defect-tolerant semiconductors for thin-film photovoltaics

Zhenkun Yuan^{1, 2}, Muhammad R. Hasan³, Gideon Kassa¹, Genevieve Amobi³, Shaham Quadir⁴, Smitakshi Goswami¹, Andrew Pike¹, Guillermo L. Esparza⁵, Sita Dugu⁴, Andriy Zakutayev⁴, David P. Fenning⁵, Obadiah G. Reid^{4, 6}, Sage Bauers⁴, Jifeng Liu¹, Kirill Kovnir^{3, 7}, Geoffroy Hautier^{1, 2}. ¹Rice University, Houston, TX, USA.²Dartmouth College, Hanover, NH, USA.³Iowa State University, Ames, IA, USA.⁴National Laboratory of the Rockies, Golden, CO, USA.⁵University of California San Diego, La Jolla, CA, USA.⁶University of Colorado Boulder, Boulder, CO, USA.⁷Ames National Laboratory, Ames, IA, USA

Development of high-temperature resistant double side (DS) TOPCon architecture for the bottom Si solar cells of perovskite/Si tandem cell

Sagnik Dasgupta¹, Kwan Hong Min¹, Wook-Jin Choi¹, Ajeet Rohatgi¹, Young-Woo Ok¹, Yanfa Yan², Zhaoning Song². ¹Georgia Institute of Technology, Atlanta, GA, USA.²University of Toledo, Toledo, OH, USA

Microscopic Insights into the Mechanism of LECO-Enabled Fire-through Cu Contact Formation on n-TOPCon

Sagnik Dasgupta¹, Ruohan Zhong¹, Harvey Gutthrey², Mengkun Tian¹, Vijaykumar Upadhyaya¹, Venkata S. A. Mulkaluri¹, Donald Intal³, Wook-Jin Choi¹, Young-Woo Ok¹, Pauls Stradins², Abasifreke Ebong³, Ruvini Dharmadasa⁴, Thad Druffel⁴, Ajeet Rohatgi¹. ¹Georgia Institute of Technology, Atlanta, GA, USA.²National Laboratory of the Rockies, Golden, CO, USA.³University of North Carolina, Charlotte, NC, USA.⁴Bert Thin Films, Louisville, KY, USA

Mitigating the contact resistance limitation of cavitated fine line Ag paste by Laser-Enhanced Contact Optimization

Donald Intal¹, Abasifreke Ebong¹, Vijay Upadhyaya², Brian Rounsaville², Ajeet Rohatgi², Dana Hankey³, Marshall Tibbetts³. ¹University of North Carolina at Charlotte, Charlotte, NC, USA.²Georgia Institute of Technology, Atlanta, GA, USA.³ACI Materials Inc., Goleta, CA, USA

Extended Accelerated Stress Testing of Lamination-Free Edge-Sealed Photovoltaic Mini-Modules

Steve Johnston¹, Ryan Ruhle², Dana B. Kern¹, Kent Terwilliger¹, David Durney², Walajabad Sampath². ¹National Laboratory of the Rockies, Golden, CO, USA.²Colorado State University, Fort Collins, CO, USA

Understanding of Boron Diffusion Dynamics in In-situ and Ex-situ Doped p+ Poly-Si Passivating Contacts for p-type TOPCon Solar Cells

Unsoo Kim, Yong-Jin Kim, Sang Hee Lee, Yunae Cho, Hyungwoo Kim, Kyung Taek Jeong, Hee-Eun Song. Korea Institute of Energy Research, Daejeon, South Korea

Silicon heterojunction solar cells with copper contacts metallization by direct printing and CO2 laser sintering

Quang Hao Nguyen¹, Ranganathan Kumar¹, Aravinda Kar², Kristopher O. Davis³. ¹Department of Mechanical and Aerospace Engineering, University of Central Florida, Orlando, FL, USA.²CREOL, The College of Optics and Photonics, University of Central Florida, Orlando, FL, USA.³Department of Materials Science and Engineering, University of Central Florida, Orlando, FL, USA

Electrical Stability of LECO-treated TOPCon Solar Cells

Saman Sharbaf Kalaghichi¹, Jan Lossen¹, Jan HoA¹, Pirmin Preis¹, Lazhar Rachdi¹, Mertcan Comak¹, JA¼rgen H. Werner², Lejo Joseph Koduvelikulathu¹Vaibhav Kuruganti¹. ¹International Solar Energy Research Center Konstanz, Konstanz, Germany.²Institute for Photovoltaics, University of Stuttgart, Stuttgart, Germany

Understanding the Electron Paramagnetic Resonance Signal of Free Electrons in Passivated Silicon Surfaces

Thien Truong¹, Chirag Mule^{1, 2}, Rabin Basnet³, P. Craig Taylor², Sumit Agarwal², David Mulder¹, William Nemeth¹, David Young¹, Paul Stradins¹. ¹National Laboratory of the Rockies, Golden, CO, USA.²Colorado School of Mines, Golden, CO, USA.³Australian National University, Canberra, Australia

Improvement of Passivation for p-type Silicon Nano-crystals/Silicon Oxide Composite Layer by Atomic Hydrogen Treatment in a Catalytic Chemical Vapor Deposition System

Hiroto Yamaguchi¹, Shohei Fukaya¹, Kazuhiro Gotoh^{1, 2, 3}, Keisuke Ohdaira⁴, Markus Wilde⁵, Katsuyuki Fukutani⁵, Yasuyoshi Kurokawa^{1, 6}, Noritaka Usami^{1, 6, 7}. ¹Graduate School of Engineering, Nagoya University, Nagoya, Japan.²Faculty of Engineering, Niigata University, Niigata, Japan.³Interdisciplinary Research Center for Carbon-Neutral Technologies, Niigata University, Niigata, Japan.⁴Japan Advanced Institute of Science and Technology, Nomi, Japan.⁵Institute of Industrial Science, The University of Tokyo, Meguro, Japan.⁶Institutes of Innovation for Future Society, Nagoya University, Nagoya, Japan.⁷Institute of Materials and Systems for Sustainability, Nagoya University, Nagoya, Japan

Correlating Annealing-Induced Electronic and Chemical Degradation of Silicon Heterojunction Cells

Margaret Zeile^{1, 2}, Andrew V. Teplyakov², Ujjwal K. Das¹. ¹Institute of Energy Conversion, Newark, DE, USA.²Department of Chemistry and Biochemistry, Newark, DE, USA

Ag-free Solar Cell Featuring Passivating Contacts with Screen-printed Front Al and Rear Cu Contact with Laser-enhanced Contact Optimization

Ruohan Zhong¹, Byungsul Min², Vijaykumar Upadhyaya¹, Sebastian Junge², Young Woo Ok¹, Brian Rounsaville¹, Rolf Brendel², Ajeet Rohatgi¹. ¹Georgia Institute of Technology, ATLANTA, GA, USA.²Institute for Solar Energy Research Hamelin, Emmerthal, Germany

Walkable Solar Shingles

Richard PerkinsDavid Meakin. GAF Energy, Georgetown, TX, USA

Comparative snow-shedding performance of landscape versus portrait orientation for photovoltaic systems

Ayush Chutani¹, David Wallis¹, Ana Dyreson¹, Laurie Burnham². ¹Michigan Technological University, Houghton, MI, USA.²Sandia National Laboratories, Albuquerque, NM, USA

Field Comparison of Snow Losses in Bifacial Fixed Tilt Versus Single Axis Tracking PV system

Ayush Chutani, Isobel Bowker, Ana Dyreson. Michigan Technological University, Houghton, MI, USA

Methodologies for Imputing Missing Data for Photovoltaic Performance Loss Estimation

Nikola Hrelja¹, Loic Guillemot², Lluvia Ochoa³. ¹TotalEnergies OneTech, Palaiseau, France.²TotalEnergies OneTech, Palaiseau, France.³TotalEnergies OneTech, Palaiseau, France

Capacitance-Based Metastability in Samples Extracted from UV-Stressed Silicon TOPCon Photovoltaic Modules

Steve Johnston, Dana B. Kern, Rebecca B. Wai, Kent Terwilliger. National Laboratory of the Rockies, Golden, CO, USA

Integration of electrical circuit simulations for PV degradation simulations

Norman Jost¹, Brandon K. Byford¹, Jennifer L. Braid¹, Clifford W. Hansen¹, Martin BartholomAcus². ¹Sandia National Laboratories, Albuquerque, NM, USA.²Technical University Denmark, RisAc, Denmark

Assessing Risks for Photovoltaic Modules: Environmental Conditions, Extreme Weather, and Regional Capacity

Norman Jost¹, Jennifer Braid¹, Elizabeth Palmiotti², Dirk Jordan², Jarett Zuboy². ¹Sandia National Laboratories, Albuquerque, NM, USA.²National Laboratory of the Rockies, Golden, CO, USA

pvcracks: python repository for electroluminescence image processing, current-voltage curve fitting and power loss estimation

Norman Jost¹, Brandon K. Byford¹, Rodrigo d. Prado Santamaria², Clifford W. Hansen¹, Jennifer L. Braid¹. ¹Sandia National Laboratories, Albuquerque, NM, USA.²Technical University of Denmark, Roskilde, Denmark

Solar Technology Soiling R&D: History, Progress, Status, and Trends

Lawrence L. Kazmerski¹, Suellen C.S. Costa², Antonia Sonia A.C. Diniz³. ¹Renewable and Sustainable Energy Institute (RASEI), University of Colorado Boulder, Boulder, CO, USA.²Matrix Energia, SApo Paulo, Brazil.³PontifAscia Universidade CatA³lica de Minas Gerais (PUC Minas), Belo Horizonte, Brazil

The Environmental Stability of SnO2, ZnO and Alloyed Buffer Layers

Luksa Kujovic, Elliott Groves, Ali Abbas , Luke O. Jones, Mustafa Togay, Luis C. Infante-Ortega, Samuel E. Machin, Adam M. Law, Ana C. Jurado-Estrada, Jake W. Bowers, John M. Walls. Loughborough University, Loughborough, United Kingdom

Bankability Assessment of TOPCon Photovoltaic Modules Through Extended Reliability Testing

Mengdi Liu¹, Eleanor Lee², Wenhao Xu¹, Yating Zhang¹, Giorgio Bardizza³, Max Koentopp⁴Christos Monokroussos¹. ¹TA, Shanghai, China.²TA, Taipei, Taiwan.³TA, Pogliano Milanese, Italy.⁴TA, Cologne, Germany

The Operation and Durability of UV-Downshifting Encapsulants for Contemporary PV Modules

David Miller, Xavier Hanna, Dennice Roberts, Rachael Arnold, Jimmy Newkirk, Kent Terwilliger, Steve Johnston, Rebecca Wai, Peter HackeDana Kern. National Laboratory of the Rockies, Golden, CO, USA

Ashesi Solar Monitoring Network Version II (ASMONET V2): Improved IoT-Based Soiling Measurement for Photovoltaic Systems in West Africa

Augustine Ofosu-Appiah¹, Stewart Isaacs^{2, 3}, Acheampong A. Afari¹, Jeremiah Takyi¹, Joshua Nti¹, Heather R. Beem¹. ¹Ashesi University, Berekuso, Ghana.²Massachusetts Institute of Technology, Cambridge, MA, USA.³Carnegie Mellon University Africa, Kigali, Rwanda

IN-SITU MOISTURE CHARACTERIZATION TO DE-RISK PHOTOVOLTAIC MODULE DEVELOPMENT AND QUALIFICATION

Sergiu Pop¹, Mihail Bora². ¹SCP SYS LLC, San Francisco, CA, USA.²Lawrence Livermore National Laboratory, Livermore, CA, USA

PV That Lasts: Persistence in New York Customer-Sited Installations

Antonia Sanhueza¹, Dana Nilsson², Dale Tutaj³. ¹DNV, Madison, WI, USA.²NYSERDA, Albany, NY, USA.³DNV, Milwaukee, WI, USA

What Solar Module Test Failures Reveal in 2026: Key Takeaways from Kiwa PVEL’s PV Module Reliability Scorecard

Archana Sinha, Jean-Nicholas Jaubert, Todd Karin, Tristan Erion-Lorico. Kiwa PVEL, Napa, CA, USA

A Systematic Review and Integrated Approach to Modeling of Aging Utility Scale PV Systems

Hanan Wehbi, Joseph Simon, Heather Mirletz, Jal Desai, Taylor Curtis, Garvin Heath, Matthew Prilliman, Brian MirletzSilvana Ovaitt, Chris Deline. National Lab of the Rockies, Golden, CO, USA

Sensitivity of models for snow-induced energy losses in fixed-tilt PV systems due to different ground snow depth data sources

Shelbie Wickett, Ayush Chutani, Isobel Bowker, Ana Dyreson. Michigan Technological University, Houghton, MI, USA

Challenges in characterization of perovskite photovoltaics under standard conditions

Takeshi Tayagaki. AIST

Challenges of High-Throughput Measurements for 2T Perovskite–Silicon Tandem Cells

Lukas Ziegler. WAVELABS Eternal Sun GmbH, Leipzig, Germany

Solutions for industry

Andras Bojtor. Semilab

From Terrestrial to Orbital: Adapting PV Characterization for Space

Manuel Rozenswig. Arrina

Wish list of characterization needs

Meric Firat. Oxford PV

PV testing based on application and current challenges

Ketan Patel. First Solar