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Atom Probe Tomography Studies on the CuIn,GaSe2 Grain Boundaries
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均质化孔选择性接触,用于厘米平方的柔性矿/Cu(In,Ga) Se2双体
Jingjing Zhou1,2, Enbing Bi3, Weizhong Tian1,2
1Department of Materials Science and Engineering, School of Engineering, Westlake University, Hangzhou, Zhejiang Province, China.
Science advances
|October 31, 2025
概括
工程师们创建了3D碳酸盐结构,以改进柔性矿/CIGS联太阳能电池. 这种分子工程将效率提高到26.2%,并提高了下一代光伏的机械耐用性.
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
- 有机电子 有机电子
背景情况:
- 灵活的矿/Cu(In,Ga) Se2 (CIGS) 合体对高效,轻量级的太阳能有希望.
- 孔选择性接触 (HSC) 中分子聚合导致的界面不均性阻碍了性能和耐用性.
- 在柔性基板上的基于平面碳素的高酸盐表现出聚合问题.
研究的目的:
- 为了克服灵活的矿/CIGS合体中的界面不均性.
- 为了提高功率转换效率 (PCE) 和机械强度.
- 开发一个分子工程战略,以改善HSCs.
主要方法:
- 开发了一个空间硬质障碍策略,以创建3D π 结合的碳素体结构.
- 将平面碳素核转化为3D骨架,以抑制分子间 π-π 堆叠.
- 将这些修改后的高酸盐集成到柔性单质矿/CIGS双重装置中.
主要成果:
- 在小面积设备中实现了冠军稳定PCE的26.2% (认证25.5%).
- 在厘米尺度设备中获得了25.3% (认证的24.3%) PCE.
- 证明了显著的机械强度,在10,000个曲周期 (10毫米半径) 后保留了最初的PCE.
结论:
- 通过3D π 结合骨架的分子级接口工程有效地使选择性接触同质化.
- 该策略导致高质量的矿膜和卓越的设备性能.
- 这种方法使得高效,稳定和可扩展的灵活合光伏的开发成为可能.
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