柔性碳纳米管/单晶硅薄膜太阳能电池。

Flexible carbon nanotube/mono-crystalline Si thin-film solar cells.

作者信息

Sun Huanhuan, Wei Jinquan, Jia Yi, Cui Xian, Wang Kunlin, Wu Dehai

机构信息

Key Laboratory for Advanced Materials Processing Technology of Education Ministry; State Key Laboratory of New Ceramic and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China.

College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China.

出版信息

Nanoscale Res Lett. 2014 Sep 20;9(1):514. doi: 10.1186/1556-276X-9-514. eCollection 2014.

DOI:10.1186/1556-276X-9-514

PMID:25258617

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4174534/

Abstract

Flexible heterojunction solar cells were fabricated from carbon nanotubes (CNTs) and mono-crystalline Si thin films at room temperature. The Si thin films with thickness less than 50 μm are prepared by chemically etching Si wafer in a KOH solution. The initial efficiency of the thin-film solar cell varies from approximately 3% to 5%. After doping with a few drops of 1 M HNO3, the efficiency increases to 6% with a short-circuit current density of 16.8 mA/cm(2) and a fill factor of 71.5%. The performance of the solar cells depends on the surface state and thickness of Si thin films, as well as the interface of CNT/Si. The flexible CNT/Si thin-film solar cells exhibit good stability in bending-recovery cycles.

摘要

柔性异质结太阳能电池是在室温下由碳纳米管（CNT）和单晶硅薄膜制成的。通过在KOH溶液中化学蚀刻硅片制备厚度小于50μm的硅薄膜。薄膜太阳能电池的初始效率约为3%至5%。在用几滴1M HNO3掺杂后，效率提高到6%，短路电流密度为16.8 mA/cm²，填充因子为71.5%。太阳能电池的性能取决于硅薄膜的表面状态和厚度，以及CNT/Si的界面。柔性CNT/硅薄膜太阳能电池在弯曲-恢复循环中表现出良好的稳定性。