高效多晶薄膜串联太阳能电池
High-Efficiency Polycrystalline Thin Film Tandem Solar Cells.
作者信息
Kranz Lukas, Abate Antonio, Feurer Thomas, Fu Fan, Avancini Enrico, Löckinger Johannes, Reinhard Patrick, Zakeeruddin Shaik M, Grätzel Michael, Buecheler Stephan, Tiwari Ayodhya N
机构信息
†Laboratory for Thin Films and Photovoltaics, Empa-Swiss Federal Laboratories for Materials Science and Technology, Ueberlandstrasse 129, 8600 Duebendorf, Switzerland.
‡Laboratory for Photonics and Interfaces, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne, CH-1015-Lausanne, Switzerland.
出版信息
J Phys Chem Lett. 2015 Jul 16;6(14):2676-81. doi: 10.1021/acs.jpclett.5b01108. Epub 2015 Jun 25.
A promising way to enhance the efficiency of CIGS solar cells is by combining them with perovskite solar cells in tandem devices. However, so far, such tandem devices had limited efficiency due to challenges in developing NIR-transparent perovskite top cells, which allow photons with energy below the perovskite band gap to be transmitted to the bottom cell. Here, a process for the fabrication of NIR-transparent perovskite solar cells is presented, which enables power conversion efficiencies up to 12.1% combined with an average sub-band gap transmission of 71% for photons with wavelength between 800 and 1000 nm. The combination of a NIR-transparent perovskite top cell with a CIGS bottom cell enabled a tandem device with 19.5% efficiency, which is the highest reported efficiency for a polycrystalline thin film tandem solar cell. Future developments of perovskite/CIGS tandem devices are discussed and prospects for devices with efficiency toward and above 27% are given.
提高铜铟镓硒（CIGS）太阳能电池效率的一种有前景的方法是在串联器件中将它们与钙钛矿太阳能电池相结合。然而，到目前为止，由于在开发近红外（NIR）透明钙钛矿顶电池方面存在挑战，此类串联器件的效率有限，而近红外透明钙钛矿顶电池能使能量低于钙钛矿带隙的光子传输到底部电池。在此，介绍了一种用于制造近红外透明钙钛矿太阳能电池的工艺，该工艺能实现高达12.1%的功率转换效率，同时对于波长在800至1000纳米之间的光子，平均子带隙传输率为71%。一个近红外透明钙钛矿顶电池与一个CIGS底部电池相结合，使得串联器件的效率达到19.5%，这是多晶薄膜串联太阳能电池报道的最高效率。文中讨论了钙钛矿/CIGS串联器件的未来发展，并给出了效率达到及超过27%的器件的前景。
Zotero 插件