材料科学
电极
炭黑
介电谱
碳纤维
钙钛矿(结构)
石墨
手套箱
太阳能电池
钙钛矿太阳能电池
光电子学
复合数
薄板电阻
复合材料
图层(电子)
化学工程
化学
工程类
物理化学
天然橡胶
有机化学
电化学
作者
Fatemeh Behrouznejad,Mozhdeh Forouzandeh,Rouhollah Khosroshahi,Kazem Meraji,Moosa Nakhaee Badrabadi,Mehdi Dehghani,Xiaoguo Li,Yiqiang Zhan,Yuan Liao,Zhijun Ning,Nima Taghavinia
出处
期刊:Solar RRL
[Wiley]
日期:2020-03-03
卷期号:4 (5)
被引量:38
标识
DOI:10.1002/solr.201900564
摘要
Perovskite solar cells are well known for being low cost, solution‐based, and efficient solar cells; however, the high price of the conventional hole‐collector electrode (Spiro‐OMeTAD/Gold) and the high price and complexity of depositing gold on large scales are major barriers against commercializing them. Herein, an effective carbon composite electrode is introduced for a low‐cost perovskite solar cell with CuIn 0.75 Ga 0.25 S 2 hole transport material to solve this problem. The carbon electrode is deposited by the doctor blade method using a paste composed of flakes of graphite, carbon black, and a kind of hydrophobic polymer (polystyrene or poly‐methyl methacrylate). It is investigated how the weight ratio of carbon black to graphite and type of binder affect sheet resistance and resistivity of carbon composite layer. The effects of carbon electrode composition on the charge transport resistance at the CuIn 0.75 Ga 0.25 S 2 /perovskite interface are investigated using impedance spectroscopy in different light intensities of white light and light with different wavelengths of 530, 660, and 740 nm. The best efficiency of 15.9% is obtained for the champion cell (fabricated outside the glovebox), which is close to the best efficiency of the reference cell with conventional Spiro‐OMeTAD/Gold hole‐collector that is 16.3%.
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