Laminated Carbon Nanotube Networks for Metal Electrode-Free Efficient Perovskite Solar Cells
Laminated Carbon Nanotube Networks for Metal Electrode-Free Efficient Perovskite Solar Cells
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DOI：
10.1021/nn501096h
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发表时间：
2014-07-01
期刊：
影响因子：
17.1
通讯作者：
Mhaisalkar, Subodh G.
中科院分区：
文献类型：
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作者：
Li, Zhen;Kulkarni, Sneha A.;Mhaisalkar, Subodh G.
有机无机金属卤化物钙钛矿太阳能电池是通过在CH（3）NH（3）Pbl（3）衬底上层压碳纳米管（CNT）网络薄膜作为空穴收集器来制造的，绕过了金属沉积的能耗真空过程。在没有有机空穴传输材料和金属接触的情况下，CH（3）NH（3）Pbl（3）和CNT形成的太阳能电池的效率高达6.87%。CH（3）NH（3）Pbl（3）/CNTs太阳能电池是半透明的，并且由于CNT电极的透明性而显示出具有双面照明的光伏输出。将螺-OMeCl 4添加到CNT网络中形成复合电极，由于增强的空穴提取和减少的太阳能电池中的复合，该复合电极将效率提高到9.90%。通过光致发光和阻抗测量研究了太阳能电池中的界面电荷转移和输运。这种柔性透明的碳纳米管网络薄膜在实现柔性透明钙钛矿太阳能电池方面显示出巨大的潜力。
Organic inorganic metal halide perovskite solar cells were fabricated by laminating films of a carbon nanotube (CNT) network onto a CH(3)NH(3)Pbl(3) substrate as a hole collector, bypassing the energy-consuming vacuum process of metal deposition. In the absence of an organic hole-transporting material and metal contact, CH(3)NH(3)Pbl(3) and CNTs formed a solar cell with an efficiency of up to 6.87%. The CH(3)NH(3)Pbl(3)/CNTs solar cells were semitransparent and showed photovoltaic output with dual side illuminations due to the transparency of the CNT electrode. Adding spiro-OMeTAD to the CNT network forms a composite electrode that improved the efficiency to 9.90% due to the enhanced hole extraction and reduced recombination in solar cells. The interfacial charge transfer and transport in solar cells were investigated through photoluminescence and impedance measurements. The flexible and transparent CNT network film shows great potential for realizing flexible and semitransparent perovskite solar cells.