journal article·2024-01-01Open access

Application of interface treatment at different position p-nc-Si:H hole collector of silicon heterojunction cells

Yuxiang Li, Yubo Zhang, Xuejiao Wang, Jilei Wang, Guanlan Chen, Qiaojiao Zou, Wei Han, Ying Liu, Liyou Yang, Xinliang Chen, Ying Zhao, Xiaodan Zhang

Nanotechnology· Volume 35· Issue 1

Abstract

Abstract The hole collector in silicon heterojunction cells serves not only as an integral component of the p/n junction, determining the strength of the built-in electric field, but also as a layer responsible for hole transport, thereby affecting carrier transport capacity. To enhance carrier extraction and transport properties of the hole collector, various interface treatments have been employed on p-type nanocrystalline (p-nc-Si:H) hole collectors. Through an examination of characteristics such as dark conductivity, crystallinity, and contact resistance, the impact of interface treatment on p-nc-Si:H hole collectors is clarified. Furthermore, considering distinct requirements for the hole collector at different locations, interface treatment processes are optimized accordingly. The introduction of interface treatment on p-nc-Si:H hole collectors has demonstrated significant enhancement of both front and rear junction cell efficiencies, which increased from 17.74% to 21.61% and from 16.83% to 20.92%, respectively.
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Research context

OpenAlex topics: Thin-Film Transistor Technologies · Silicon and Solar Cell Technologies · Silicon Nanostructures and Photoluminescence

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

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