阴离子封闭 均混合化佩洛夫斯基特膜通过电喷增长
Xiuxiu Niu1, Nengxu Li2, Zhenhua Cui1
1Experimental Centre for Advanced Materials, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China.
Advanced materials (Deerfield Beach, Fla.)
|August 11, 2023
概括
电子喷雾沉积增强了宽带间隙矿膜,用于稳定,高效的双联太阳能电池. 这种方法提高了同质性,提高了功率转换效率和长期运行稳定性.
科学领域:
- 材料科学 材料科学 材料科学
- 可再生能源可再生能源是可再生能源.
- 太阳能光伏发电是如何实现的
背景情况:
- 宽带间隙矿对于高效,低成本的联太阳能电池至关重要,旨在超过Shockley-Queisser极限.
- 混合化物矿,虽然有前途,但由于光诱导相分离等问题,其稳定性不佳.
- 现有的制造方法难以应对化物和化物成分的不同增长率,从而影响薄膜的均性.
研究的目的:
- 开发一种制造方法,提高宽带间隙矿膜的均性和稳定性.
- 研究电子喷雾沉积对矿太阳能电池性能和寿命的影响.
- 为了证明电子喷雾沉积的矿在实现高功率转换效率的同时太阳能电池应用中的潜力.
主要方法:
- 电子喷雾沉积被用来控制混合化矿中化和化成分的生长速度.
- 这种方法在空间上限制了离子扩散,并消除了薄膜形成过程中的动力差异.
- 制造的矿膜被集成到太阳能电池设备中进行性能和稳定性测试.
主要成果:
- 电子喷雾沉积普遍改善了矿膜的初始均性,无论设备的架构如何.
- 使用宽带间隙 (1.68 eV) 矿吸收器的太阳能电池实现了21.44% (0.08 cm2) 和20.77% (1.0 cm2) 的显著功率转换效率 (PCE).
- 制造出来的设备表现出卓越的稳定性,在室温下一太阳照射下1550小时稳定功率输出跟踪后,保留了90%的初始PCE.
结论:
- 电子喷雾沉积是一种有效的技术,用于生产高度均和稳定的宽带间隙矿膜.
- 这种方法显著提高了矿太阳能电池的效率和长期运行稳定性.
- 这些发现突显了电喷沉积的矿在下一代成本效益高的联太阳能电池技术中的潜力.
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