Enhanced Bifacial III–V/Silicon Multijunction Solar-Cell-Based Promising Structure of c-Si Bottom Cells

IF 5.5 3区材料科学 Q2 CHEMISTRY, PHYSICAL ACS Applied Energy Materials Pub Date : 2025-01-12 DOI:10.1021/acsaem.4c02511

Alamgeer, Polgampola Chamani Madara, Muhammad Quddamah Khokhar*, Hasnain Yousuf, Jaljalalul Abedin Jony, Rafi Ur Rahman, Junhan Bae, Seokjin Jang, Min-Kyung Shin, Sangheon Park and Junsin Yi*,

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Abstract

We present a structural design for a four-terminal III–V/crystalline silicon (c-Si) multijunction (MJ) device based on optimized bifacial illumination. The proposed configuration consists of a triple-junction top cell incorporating gallium indium phosphide (GaInP), indium gallium arsenide (InGaAs), and germanium (Ge), paired with a tunnel oxide passivating contact (TOPCon) as the bottom cell. The bifacial TOPCon cell effectively enhances the transmission of albedo-reflected light into the c-Si absorber, delivering superior performance compared to conventional heterojunction cells. With an additional rear illumination of 0.3 sun, the bottom cell efficiency increases by 9.61%. Bifacial illumination enhances the overall efficiency of the MJ device by 20.77% compared to the monofacial device. With the power conversion efficiency (PCE) of bifacial GaInP/InGaAs/Ge/TOPCon MJ devices reaching 35.70%, this design demonstrates significant potential for advancing high-efficiency bifacial solar cell technologies.

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基于增强型Bifacial III-V /Silicon多结太阳能电池的c-Si底电池结构

提出了一种基于优化双面照明的四端III-V /晶体硅（c-Si）多结（MJ）器件的结构设计。所提出的结构由三结顶部电池组成，其中包含磷化镓铟（GaInP），砷化铟镓（InGaAs）和锗（Ge），并与隧道氧化物钝化触点（TOPCon）配对作为底部电池。双面TOPCon电池有效地增强了反照反射光进入c-Si吸收器的传输，与传统的异质结电池相比，具有优越的性能。在增加0.3太阳光照的情况下，底部电池效率提高了9.61%。与单面照明相比，双面照明使MJ器件的整体效率提高了20.77%。由于双面GaInP/InGaAs/Ge/TOPCon MJ器件的功率转换效率（PCE）达到35.70%，该设计显示了推进高效双面太阳能电池技术的巨大潜力。

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来源期刊

ACS Applied Energy Materials Materials Science-Materials Chemistry

CiteScore

10.30

自引率

6.20%

发文量

1368

期刊介绍： ACS Applied Energy Materials is an interdisciplinary journal publishing original research covering all aspects of materials, engineering, chemistry, physics and biology relevant to energy conversion and storage. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrate knowledge in the areas of materials, engineering, physics, bioscience, and chemistry into important energy applications.