SPLTRAK Abstract Submission
Efficient self-protected thin film c-Si solar cell against reverse-biasing condition: A simulation study
Omar M. Saif1,2, Abdelhalim Zekry1, Ahmed Shaker Ghazala3, Mohamed A. Abouelatta1, Ahmed Saeed4
1Department of Electronics and Communications, Faculty of Engineering, Ain Shams University, Cairo, Egypt
/2Department of Electronics and Communications, Engineering School, Canadian International College, Zayed Campus, Giza, Giza, Egypt
/3Engineering Physics and Mathematics Department, Faculty of Engineering, Ain Shams University, Cairo, Egypt
/4Electrical Engineering Department, Future University in Egypt, Cairo, Egypt

In order to protect the solar panel against reverse biasing, bypass Schottky diodes are usually connected in parallel with a string of cells which make the circuit more complex and costly. This study presents a novel thin-film crystalline silicon device design using physics-based TCAD simulations. In our proposed solar cell, a P+ reverse conducting layer (RTL) is introduced to form a N++/P+/P structure. The novel device structure provides two different functions depending on the type of applied bias. It operates as an efficient solar cell when operating at forward biasing while it acts as a backward diode when reverse biased. Therefore, such proposed device is a self-protected against the reverse current. Also, it can reduce circuit complexity and manufacturing cost.