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Updated: May 6, 2026

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Published on: February 27, 2017

具有高度稳定的宽带间隙矿太阳能电池的构成结构工程

Qi Jiang¹, Jinhui Tong¹, Rebecca A Scheidt¹

¹Chemistry and Nanoscience Center, National Renewable Energy Laboratory, Golden, CO 80401, USA.

Science (New York, N.Y.)

|December 22, 2022

概括

稳定的宽带间隙矿太阳能电池 (PSC) 使用一种新的气体灭方法来克服相隔离. 这提高了双重太阳能电池应用的效率和运行稳定性.

科学领域:

材料科学
可再生能源
太阳能发电

背景情况:

宽带间隙 (WBG) 矿太阳能电池 (PSC) 对于高效的合器件至关重要.
在运行条件下,- (Br-I) 混合化物PSC面临Br-I相分离的挑战,限制电压和稳定性.
在富含Br的矿快速结晶过程中形成的缺陷进一步阻碍了性能.

研究的目的:

开发使用Br-I混合化物矿的高度稳定和高效的WBGPSC.
为了减轻Br-I相分离,减少矿薄膜中的缺陷密度.
制造出高效的矿太阳能电池.

主要方法:

结合快速的Br结晶与温和的气体灭方法.
准备的高质地柱状1.75电子伏特Br-I混合WBG矿薄膜.
将WBGPSC与窄带间PSC集成到一个双终端联接设备中.

主要成果:

实现了超过20%的功率转换效率和1.33伏的开放电路电压 (Voc) 的1.75电子伏WBG PSC.
在65°C和1.2日光下,在1100小时内降解率低于5%,表现出卓越的操作稳定性.
制造了一种27.1%效率的全矿合太阳能电池,电压为2.2伏.

结论:

通过减少缺陷密度和相分离,气体灭方法有效地产生稳定,高效的WBG矿薄膜.
开发的WBGPSC适用于高性能并联太阳能电池应用.
这种全矿的合装置显示出未来太阳能转换的巨大潜力.

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