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高效率 (>10%) AgBiS2合体纳米晶太阳能电池与二基基基聚合物孔运输层

Jihyung Lee¹, Cheng Sun², Junho Park³

¹School of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea.

Advanced materials (Deerfield Beach, Fla.)

|December 4, 2024

概括

研究人员开发了一种新型聚合物BD2FCT,作为环保银二硫化物 (AgBiS2) 合体纳米晶 (CNC) 太阳能电池的孔输送层 (HTL). 这一进步通过改善电荷转移和减少重组,将太阳能电池效率提高到10.1%.

科学领域:

材料科学材料科学材料科学
纳米科学是一个纳米科学.
可再生能源可再生能源是可再生能源.

背景情况:

银二硫化物 (AgBiS2) 合纳米晶 (CNCs) 是有希望的环保光活性材料.
现有的AgBiS2数控太阳能电池在电荷转移和再组合方面面临着挑战.
优化孔运输层 (HTL) 对于提高太阳能电池性能至关重要.

研究的目的:

为AgBiS2CNC太阳能电池开发一种新的基于二甲基 (DPP) 的聚合物 (BD2FCT),作为一个优化的HTL.
为了改善电荷传输,减少重组,并提高AgBiS2数控太阳能电池的整体功率转换效率 (PCE).

主要方法:

合成一种新的基于DPP的聚合物BD2FCT,用于作为HTL.
制造AgBiS2数控太阳能电池,其中包括BD2FCT HTL.
光学吸收,能量水平对齐和电荷转移动态的表征.
使用短暂吸收光谱来研究电荷转移和重组.

主要成果:

BD2FCT HTL具有互补的光学吸收,并在AgBiS2 CNC上形成一个均的层.
在BD2FCT和AgBiS2之间的能量对齐减少了界面电荷重组.
将IEICO-4F纳入BD2FCT可以增强充电道和吸收.
暂时吸收光谱证实了增强的孔转移和减少的重组.
一个基于BD2FCT的AgBiS2CNC太阳能电池实现了10.1%的PCE,改善了Jsc和FF.

结论:

开发的BD2FCT聚合物是AgBiS2 CNC太阳能电池的有效HTL.
HTL的分子工程显著提高了电荷提取和光电流的产生.
这项工作表明了改善环保CNC太阳能电池性能的可行策略.

关键词:

收取运输层的运输费用.导电性聚合物中的导电性聚合物.基于diketopyrrol和 pyrrole 的聚合物.环保的合体纳米晶体.太阳能电池是太阳能电池中的一个.表面化学表面化学

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