Seo Won-Oh, Kim Donghwan, Kim Jihyun
Opt Express. 2015 Apr 6;23(7):A316-21. doi: 10.1364/OE.23.00A316.
We demonstrate flexible CdTe/CdS thin-film solar cells in a superstrate configuration with a cell conversion efficiency as high as 10.9%. We deposit a CdS window layer and a CdTe absorber layer on a flexible glass substrate using the chemical bath deposition method and close-spaced sublimation method, respectively. The thin and flexible glass substrates were able to tolerate a high growth temperature and post-growth processes. We repeatedly apply a strain of 0.15% to the fabricated CdTe/CdS solar cells, and this was shown to have a negligible effect on their performances. Our proposed thin films-on-compliant substrate structure, which was prepared by replacing a rigid glass with a bendable one, demonstrated flexible CdTe/CdS p-n junction thin-film solar cells without compromising the cell performance.
我们展示了采用正装结构的柔性碲化镉/硫化镉薄膜太阳能电池，其电池转换效率高达10.9%。我们分别使用化学浴沉积法和近距离升华法在柔性玻璃基板上沉积硫化镉窗口层和碲化镉吸收层。这种薄且柔性的玻璃基板能够承受较高的生长温度和生长后处理过程。我们对制备好的碲化镉/硫化镉太阳能电池反复施加0.15%的应变，结果表明这对其性能的影响可忽略不计。我们提出的在柔顺基板上的薄膜结构，是通过用可弯曲的玻璃取代刚性玻璃制备而成，展示了柔性碲化镉/硫化镉p-n结薄膜太阳能电池，且不影响电池性能。
