Efficient inorganic–organic hybrid heterojunction solar cells containing perovskite compound and polymeric hole conductors

نویسندگان

  • Jin Hyuck Heo
  • Sang Hyuk Im
  • Jun Hong Noh
  • Tarak N. Mandal
  • Choong-Sun Lim
  • Jeong Ah Chang
  • Yong Hui Lee
  • Hi-jung Kim
  • Arpita Sarkar
  • Md. K. Nazeeruddin
  • Michael Grätzel
  • Sang Il Seok
چکیده

Inorganic–organic hybrid structures have become innovative alternatives for next-generation dye-sensitized solar cells, because they combine the advantages of both systems. Here, we introduce a layered sandwich-type architecture, the core of which comprises a bicontinuous three-dimensional nanocomposite of mesoporous (mp)-TiO2, with CH3NH3PbI3 perovskite as light harvester, as well as a polymeric hole conductor. This platform creates new opportunities for the development of low-cost, solution-processed, high-efficiency solar cells. The use of a polymeric hole conductor, especially poly-triarylamine, substantially improves the open-circuit voltage Voc and fill factor of the cells. Solar cells based on these inorganic–organic hybrids exhibit a short-circuit current density Jsc of 16.5 mA cm , Voc of 0.997 V and fill factor of 0.727, yielding a power conversion efficiency of 12.0% under standard AM 1.5 conditions.

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تاریخ انتشار 2013