[7p-A404-1~9] 4.6 Nanocarbon and 2D Materials

▲ [7p-A404-1] [JSAP-OSA Joint Symposia 2017 Invited Talk] Carbon nanotube films for perovskite solar cells

〇Shigeo Maruyama^1,2 (1.Univ. Tokyo, 2.AIST)

Keywords:carbon nanotubes, solar cells, Perovskite

A film of single-walled carbon nanotubes (SWNTs) can be flexible and stretchable transparent-conductive layer. At the same time, this film can be carrier-selective layers, i.e., electron-blocking-layers or hole-blocking-layers, by using adequate doping. Based on our experiences of using nanotube films for CNT-Si solar cells and organic polymer solar cells, we will extend the application of CNT films for organic-inorganic Perovskite solar cells. The normal-type perovskite solar cell, composed of ITO/C₆₀/CH₃NH₃PbI₃/SWNTs, can achieve a PCE of 17 % with spiro-MeOTAD as dopant to SWNTs. This structure with a perovskite layer sandwiched by C₆₀ and SWNTs can lead to the solar cells without hysteresis and with much improved air-stability. Perovskite solar cells using films of SWNTs for both anode and cathode electrode will be also discussed.