Fabrication of tandem solar cells with all-solution processed multilayer structure using non-peripherally substituted octahexyl tetrabenzotriazaporphyrins
Fabrication of tandem solar cells with all-solution processed multilayer structure using non-peripherally substituted octahexyl tetrabenzotriazaporphyrins
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DOI：
10.7567/jjap.55.03db01
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发表时间：
2016-03-01
影响因子：
1.5
通讯作者：
Ozaki, Masanori
中科院分区：
文献类型：
--
作者：
Dao, Quang-Duy;Fujii, Akihiko;Ozaki, Masanori
提高有机太阳能电池功率转换效率的有效途径是采用串联结构，将两个具有不同吸收特性的有机太阳能电池连接在一起，以使用更广泛的太阳光谱。在此，我们报道了全溶液处理多层结构的串联太阳能电池的制造，利用由非外周取代的八己基四苯并三氮卟啉和聚（3-己基噻吩）（P3HT）组成的传统结构分别作为前后电池的供体。透明的氧化锌层用于前电池的电子传递，并为后电池的制造提供稳定的基础，以完成串联电池结构。因此，串联电池的开路电压相对较高，为1.4V。此外，通过气相退火处理，改善了p3ht共轭聚合物的结晶性，经5 min气相退火处理的串联电池的PCE为3.2%。(C) 2016 .日本应用物理学会
An effective way to improve the power conversion efficiencies (PCEs) of organic solar cells is to use a tandem structure, in which two organic solar cells with different absorption characteristics are linked to use a wider range of the solar spectrum. Herein, we report the fabrication of tandem solar cells with an all-solution processed multilayer structure utilizing a conventional structure composed of non-peripherally substituted octahexyl tetrabenzotriazaporphyrins and poly(3-hexylthiophene) (P3HT) as donors in the back and front cells, respectively. A transparent ZnO layer functions in electron transport for the front cell and as a stable foundation for the fabrication of the back cell to complete the tandem cell architecture. As a result, the tandem cell exhibited a relatively high open-circuit voltage of 1.4V. Furthermore, by vapor-annealing treatment, the crystallization of the P3HT-conjugated polymer was improved and a PCE of 3.2% was achieved for the tandem cell with 5-min vapor-annealing treatment. (C) 2016 The Japan Society of Applied Physics