Free-standing flexible carbon electrode for highly efficient hole-conductor-free perovskite solar cells
Free-standing flexible carbon electrode for highly efficient hole-conductor-free perovskite solar cells
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用于高效无空穴导体钙钛矿太阳能电池的独立式柔性碳电极
DOI：
10.1016/j.carbon.2015.05.042
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发表时间：
2015
期刊：
影响因子：
10.9
通讯作者：
Meng Qingbo
中科院分区：
文献类型：
--
作者：
Wei Huiyun;Xiao Junyan;Yang Yueyong;Lv Songtao;Shi Jiangjian;Xu Xin;Dong Juan;Luo Yanhong;Li Dongmei;Meng Qingbo
一种具有良好柔韧性和导电性的自支撑热塑性碳膜已经开发出来，并首次引入钙钛矿太阳能电池。由于其热塑性，这种独立的碳膜可以直接热压到钙钛矿层上作为对电极。通过对碳膜成分和热压压力的优化，钙钛矿与碳膜之间的背接触得到了显著改善。已经实现了高达13.53%的功率转换效率，这是无空穴传输材料的钙钛矿太阳能电池的最高效率之一。这种柔性碳电极具有成本低、制备工艺简单、低温（<100 °C）、效率高等优点，在钙钛矿太阳能电池中显示出巨大的应用潜力。
A free-standing thermoplastic carbon film with good flexibility and conductivity has been developed and introduced in perovskite solar cells for the first time. Due to its thermoplasticity, this free-standing carbon film can be directly hot pressed onto the perovskite layer as counter electrode. By optimization toward the components of carbon films and hot-pressing pressure, the back contact between the perovskite and carbon films has been significantly improved. Up to 13.53% of power conversion efficiency has been achieved, which is one of the highest efficiencies for hole transporting material-free perovskite solar cells. This kind of flexible carbon electrodes with the advantages of low-cost, simple and low-temperature (<100 °C) preparation process and high efficiency, show great potential application in perovskite solar cells.