Perovskite-kesterite monolithic tandem solar cells with high open-circuit voltage
Perovskite-kesterite monolithic tandem solar cells with high open-circuit voltage
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DOI：
10.1063/1.4899275
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发表时间：
2014-10-27
影响因子：
4
通讯作者：
Guha, Supratik
中科院分区：
文献类型：
--
作者：
Todorov, Teodor;Gershon, Talia;Guha, Supratik
我们报告了一个单片串联光伏器件与地球丰富的解决方案处理吸收。在没有层转移的情况下，在单个衬底上单片地制造了锌黄锡矿Cu 2 ZnSn（S，Se）（4）和钙钛矿CH 3 NH3 PbI 3太阳能电池。所得器件表现出1350 mV的高开路电压（Voc），接近单吸收体参考电池电压的总和，并且优于迄今报道的任何单片串联硫属化物器件（包括Cu（In，Ga）Se-2）。包括严格限制的顶部接触电极在内的几个器件元件的持续优化预计将产生上级电流和效率。重要的是，我们的器件架构展示了两种最有前途的新兴光伏材料的兼容性和协同潜力，并为实现>20%的效率提供了优化途径。(C)2014 AIP出版有限责任公司。
We report a monolithic tandem photovoltaic device with earth-abundant solution processed absorbers. Kesterite Cu2ZnSn(S,Se)(4) and perovskite CH3NH3PbI3 solar cells were fabricated monolithically on a single substrate without layer transfer. The resulting devices exhibited a high open circuit voltage (Voc) of 1350 mV, close to the sum of single-absorber reference cells voltages and outperforms any monolithic tandem chalcogenide device (including Cu(In,Ga)Se-2) reported to date. Ongoing optimization of several device elements including the severely limiting top contact electrode is expected to yield superior currents and efficiency. Importantly, our device architecture demonstrates the compatibility and synergistic potential of two of the most promising emerging photovoltaic materials and provides a path for optimization towards >20% efficiency. (C) 2014 AIP Publishing LLC.