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通过精确控制生长过程来缓解单晶矿太阳能电池的效率缺陷

Tongpeng Zhao¹, Ruiqin He¹, Tanghao Liu²

¹Ministry of Industry and Information Technology Key Lab of Micro-Nano Optoelectronic Information System, Guangdong Provincial Key Laboratory of Semiconductor Optoelectronic Materials and Intelligent Photonic Systems, Harbin Institute of Technology (Shenzhen), Shenzhen, Guangdong 518055, China.

|January 13, 2025

概括

单晶矿太阳能电池 (SC-PSCs) 显示出在多晶矿太阳能电池 (PC-PSCs) 中克服效率高原的希望. 这项研究表明,SC-PSC可以通过尽量减少缺陷和载体损失来优于PC-PSC.

科学领域:

材料科学材料科学材料科学
可再生能源可再生能源是可再生能源.
太阳能光伏发电是如何实现的

背景情况:

多晶矿太阳能电池 (PC-PSC) 由于缺陷和载体损失而面临效率限制.
单晶矿提供本质上较低的缺陷密度,以提高太阳能电池的性能.

研究的目的:

调查单晶矿太阳能电池 (SC-PSC) 作为一个平台,以克服PC-PSC的效率高原.
解决单晶薄膜 (SCTF) 中的非辐射载体损失,以提高太阳能电池的性能.

主要方法:

精确控制与设备兼容的单晶薄膜 (SCTF) 的生长.
调查MAPbI₃作为SC-PSC的模型材料.
在SCTF的接口和大部分位置分析和抑制载体损失.

主要成果:

证明SC-PSC可以超过最先进的PC-PSC.
在SCTF的大批量和接口上成功抑制了非辐射载体损失.
与PC-PSC相比,SC-PSC实现了更高的功率转换效率 (PCE).

结论:

精确控制的SCTF增长对于实现SC-PSC的潜力至关重要.
SC-PSC提供了一条可行的途径,可以超越当前的PC-PSC效率限制.
在SC-PSC中最大限度地减少载体损失是实现更高功率转换效率的关键.

关键词:

接口工程接口工程非辐射载体的损失.矿太阳能电池是如何使用的单晶矿石是一种单晶矿石.溶剂工程溶剂工程

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P-N junction

P-N junction

A p-n junction is formed when p-type and n-type semiconductor materials are joined together. At the interface of the p-n junction, holes from the p-side and electrons from the n-side begin to diffuse into the opposite sides due to the concentration gradient. This diffusion of carriers leads to a region around the junction where there are no free charge carriers, known as the depletion region. The charge density within the depletion region for the n-side and p-side can be described by the...