超稳定的迪昂-雅各布逊二维结构使矿太阳能电池具有高效和稳定性
Fei Zhang1, So Yeon Park1, Canglang Yao2,3
1Chemistry and Nanoscience Center, National Renewable Energy Laboratory, Golden, CO 80401, USA.
Science (New York, N.Y.)
|November 25, 2021
概括
使用二维矿表面处理显著提高了三维矿太阳能电池 (PSC) 的性能. 一个超稳定的迪昂-雅各布逊二维矿层提高了功率转换效率 (PCE) 高达16%,并提高了运行稳定性.
科学领域:
- 材料科学
- 可再生能源
- 太阳能发电
背景情况:
- 三维 (3D) 有机 - 无机化太阳能电池 (PSC) 显示了有效的太阳能转换的希望.
- 提高PSC的收费运输和运营稳定性仍然是商业化的关键挑战.
研究的目的:
- 通过使用二维分层矿进行表面处理来提高3DPSC的性能.
- 调查一个超稳定的迪昂-雅各布 (DJ) 2D矿层在优化孔运输和设备效率方面的作用.
主要方法:
- 通过对金属稳定的DJ2D矿进行表面处理,制造3DPSC.
- 在二维矿层中调整不对称的有机分子的方向安排.
- 电荷传输特性和功率转换效率 (PCE) 的表征.
主要成果:
- 超稳定的DJ2D矿表面层降低了洞运输的能量障碍,增加了4-5倍的外平面运输率.
- 一个独立的2DPSC实现了4.9%的PCE.
- 常见的3DPSC的PCE增强了12- 16%,达到2D表面层的24. 7%. 一个三混合化物PSC在运行1000小时后保留了90%的初始PCE.
结论:
- 用转移稳定的DJ2D矿进行表面处理是提高3DPSC性能的一种有效策略.
- 优化的孔运输和改善的稳定性表明可扩展的矿太阳能技术的巨大潜力.
- 这种方法为提高效率和更耐用的矿太阳能电池提供了途径.
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