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为矿-矿-三连接太阳能电池量身定制纳米级接口
Jianghui Zheng1,2,3,4, Guoliang Wang5,6, Leiping Duan7
1School of Physics, The University of Sydney, Sydney, New South Wales, Australia. jh.zheng@xmu.edu.cn.
Nature nanotechnology
|October 7, 2025
概括
研究人员开发了先进的矿太阳能电池. 新的处理方法提高了效率和稳定性,在三联装置中实现了27.06%的功率转换效率.
科学领域:
- 材料科学 材料科学 材料科学
- 可再生能源是可再生能源的来源.
- 太阳能光伏发电是如何实现的
背景情况:
- 三联太阳能电池提供了比单联或双联电池更高的理论功率转换效率 (PCE).
- 由于表面缺陷等问题,实际的矿-矿- (P-P-Si) 设备没有达到理论限制或商业目标.
研究的目的:
- 为了提高矿-矿-三联太阳能电池的功率转换效率和稳定性.
- 为了解决矿连接处的表面缺陷,并优化层间接触.
- 为了提高设备的寿命,提高商业可行性.
主要方法:
- 引入了皮佩拉-1,4-化处理,以减轻顶部矿层的表面缺陷,取代化.
- 在锡氧化物上优化金纳米粒子尺寸,以改善欧姆接触和减少矿连接点之间的光学损失.
- 通过消除甲基和结合卢比来修改的矿组成,以及皮佩拉-1,4-化表面处理.
主要成果:
- 实现了一种冠军的1厘米2三连接电池,具有27.06%的反向扫描PCE和3.16V的开放电路电压.
- 展示了一个16厘米的设备,具有23.3%的稳定状态PCE认证.
- 改善了设备的寿命:一个封装的1厘米2细胞在407小时后保持了95%的效率,并通过了热循环测试.
结论:
- 开发的策略大大提高了P-P-Si三联太阳能电池的性能和稳定性.
- 这些发现为基于矿的更高效,更持久的太阳能技术铺平了道路.
- 这项工作解决了阻碍高效矿太阳能电池商业化的主要挑战.
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