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Updated: Jul 6, 2025

Developing High Performance GaP/Si Heterojunction Solar Cells

Developing High Performance GaP/Si Heterojunction Solar Cells

Published on: November 16, 2018

高效的单立体矿/矿/三连接太阳能电池

Faming Li¹, Dan Wu¹, Le Shang¹

¹School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China.

Advanced materials (Deerfield Beach, Fla.)

|January 8, 2024

概括

研究人员为宽带间隙矿开发了一种新的合金化策略,大大提高了三联太阳能电池的性能. 这项创新克服了以前的局限性,实现了基于矿的三连接联太阳能电池的24.19%的经过认证的效率.

科学领域:

材料科学材料科学材料科学
太阳能光伏发电是如何实现的
固态化学固态化学

背景情况:

宽带间隙金属化物矿显示出多连接光伏 (PV) 电池的潜力.
光诱导的相分离和低开通电路电压 (V_oc) 阻碍了基于矿的多连接器件的性能.

研究的目的:

为了克服基于矿的多连接太阳能电池的性能限制.
制定一种在宽带间隙矿中均的阴离子和化物分布的策略.

主要方法:

使用Rb⁺和Cl^-兴奋剂的合金化策略,以实现均的三阴离子和化物分布.
在矿中抑制化物相分离和表面潜力的同质化.
单连接和三连接串联太阳能电池的制造和表征.

主要成果:

在单节矿太阳能电池中达到1.33V的V_oc.
演示了一个矿/矿/c-Si三连接联电池,V_OC接近3.0V.
实现了25.0%的功率转换效率 (反向扫描),三连接串联电池的认证效率为24.19%.

结论:

合金化策略有效抑制化物相分离,并使表面潜力均化.
开发的三连接联太阳能电池实现了基于矿的设备的创纪录的认证效率.
这种材料逐设计的方法克服了基于矿的三连接联太阳能电池的性能瓶.

关键词:

高开放电路高电压的开放电路阶段分离阶段分离的分离.双联太阳能电池是一个双联太阳能电池.三连接太阳能电池的三连接太阳能电池.宽带间隙的岩石是宽带间隙的岩石.

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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...