Advanced Design and Electrical Properties Simulation of Two-Dimensional Photovoltaic Devices
2018
Zhang, Qiang | Qi, Shaocheng | Dai, Chaozhu | Chen, Ruowang | Wu, Zhendong | Zhang, Xingye | Juodkazis, Saulius | Zhang, Hengbo | Dai, Mingzhi | Wang, Pengjun
Photovoltaic devices have attracted much attention for decades because of their environment-friendly properties and renewable energy prospect. Solar cells with improved electrical properties such as augmented FF (fill factor) and JSC (short-circuit current) are investigated for sustainable energy applications. However, most of research studies focus on the change of materials and the addition of layers. Here, a novel cell with a tilted/nonflatted junction structure is proposed. A detailed study of the key electrical properties for the updated structure with the comparison with the conventional cell structure is presented. The nonflat interface between layers of the semiconductor devices could be extended to different layer interfaces besides the p–n junction, such as the interface between the top electrode and its subsequent layers. Such a nonflat design could be extended to other devices such as photoelectric detectors, lithium battery, capacitors, supercapacitors, and transistors. Simulation results show that the improved structure provides a simple alternative way to improve the key electrical properties for solar cells.
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