电子传输层工程诱导载体动力学优化,以获得高效的无CDSb2Se3薄膜太阳能电池
Ping Luo1, Tahir Imran1, Dong-Lou Ren2
1Shenzhen Key Laboratory of Advanced Thin Films and Applications, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, Guangdong, 518060, China.
这项研究引入了一种绿色,无的电子输送层 (ETL),用于胺太阳能电池. 这一创新提高了效率,并为环保光伏设备铺平了道路.
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.
背景情况:
- 化 (Sb2Se3) 是一个有前途的光伏材料,由于其优秀的光电特性,成本效益和环保性.
- 广泛使用有毒的硫化 (CdS) 作为电子输送层 (ETL) 阻碍了高效的Sb2 Se3太阳能电池的商业化.
研究的目的:
- 为Sb2 Se3太阳能电池开发一种有效的,绿色和无ETL.
- 优化Sb2 Se3 /ETL异质连接接口,并提高Sb2 Se3吸收层的质量.
主要方法:
- 原子层沉积 (ALD) 用于沉积一个锡氧化物 (SnOx) ETL.
- 采用后化处理来优化功能层和异质连接属性.
- 进行了SnOx ETL,Sb2 Se3 /SnOx异质连接和Sb2 Se3吸收层的表征.
主要成果:
- SnOxETL表现出增强的纳米结晶性,更高的载体密度和减少的缺陷组.
- Sb2 Se3 /SnOx异质连接显示了改进的接口性能和一个可取的"状"带对齐.
- 通过被动化散装缺陷和延长载体寿命,Sb2 Se3吸收层质量得到了提高.
- 制造的无Cd太阳能电池在基板结构的Sb2Se3设备中实现了7.39%的创纪录效率.
结论:
- 开发的SnOx ETL和后化策略有效地增强载体分离和运输,同时抑制重组.
- 这项工作提出了开发环保和商业可行的Sb2 Se3光伏设备的可行策略.
- 取得的创纪录效率证明了无CdETL在推进Sb2 Se3太阳能电池技术方面的潜力.
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