Presentation Details
| Sprayed NiOx as a Hole Transport Material in CdSe-Based Solar Cells with Superstrate and Substrate Configurations UJJWAL DHAKAL, Sabin Neupane, Manoj Jamarkattel, Kiran Lamichhane, Suresh Chaulagain, Sanjeeb Budhathoki, Hamim Sharif, Arun Basnet, Alisha Adhikari, Prabin Dulal, Joel Blodgett, Nikolas Podraza, Randy Ellingson, Michael Heben, Yanfa Yan. University of Toledo, PVIC, Toledo, OH, USA |
Abstract
The role of hole-transporting material (HTM) is critical in realizing high-efficiency cadmium selenide (CdSe)-based solar cells. Various research groups have reported different organic HTMs to attain improved device performance. Here, we used inorganic sprayed nickel oxide (NiOx) as the HTM in CdSe solar cells. Because of its high thermal stability, it can be processed at higher temperatures (more than 400°C), allowing it to be used in superstrate CdSe solar cells. Using NiOx as HTM in superstrate CdSe solar cells, we obtained a photo conversion efficiency (PCE) of 2.58% with an open-circuit voltage (VOC) of 604 mV, current density (JSC) of 17.5 mA/cm2, and a fill factor (FF) of 24.5%. In substrate configuration, we achieved 1.1% PCE with a JSC of 10.2 mA/cm2. Nevertheless, systematic optimization is needed to obtain higher performance.
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No part of this publication may be reproduced, distributed, or transmitted in any form or by any means, including photocopying, recording, or other electronic or mechanical methods, without the prior written permission of the author.