%0 Journal Article %1 vinoth2018graphene %A Vinoth Kumar, Sri Hari Bharath %A Muydinov, Ruslan %A Kol'tsova, Tat ‘yana %A Erfurt, Darja %A Steigert, Alexander %A Tolochko, Oleg %A Szyszka, Bernd %D 2018 %I AIP Publishing %J Applied Physics Letters %K MAPI SPV defect graphene interface interlayer perovskite %N 1 %P 011604 %R 10.1063/1.5017579 %T Graphene assisted effective hole-extraction on In2O3: H/CH3NH3PbI3 interface: Studied by modulated surface spectroscopy %U https://aip.scitation.org/doi/10.1063/1.5017579 %V 112 %X harge separation in CH3NH3PbI3 (MAPbI3) films deposited on a hydrogen doped indium oxide (In2O3:H) photoelectrode was investigated by modulated surface photovoltage (SPV) spectroscopy in a fixed capacitor arrangement. It was found that In2O3:H reproducibly extracts photogenerated-holes from MAPbI3 films. The oxygen-plasma treatment of the In2O3:H surface is suggested to be a reason for this phenomenon. Introducing graphene interlayer increased charge separation nearly 6 times as compared to that on the In2O3:H/MAPbI3 interface. Furthermore, it is confirmed by SPV spectroscopy that the defects of the MAPbI3 interface are passivated by graphene.

@article{vinoth2018graphene, abstract = {harge separation in CH3NH3PbI3 (MAPbI3) films deposited on a hydrogen doped indium oxide (In2O3:H) photoelectrode was investigated by modulated surface photovoltage (SPV) spectroscopy in a fixed capacitor arrangement. It was found that In2O3:H reproducibly extracts photogenerated-holes from MAPbI3 films. The oxygen-plasma treatment of the In2O3:H surface is suggested to be a reason for this phenomenon. Introducing graphene interlayer increased charge separation nearly 6 times as compared to that on the In2O3:H/MAPbI3 interface. Furthermore, it is confirmed by SPV spectroscopy that the defects of the MAPbI3 interface are passivated by graphene.}, added-at = {2018-04-18T16:00:17.000+0200}, author = {Vinoth Kumar, Sri Hari Bharath and Muydinov, Ruslan and Kol'tsova, Tat ‘yana and Erfurt, Darja and Steigert, Alexander and Tolochko, Oleg and Szyszka, Bernd}, biburl = {https://www.bibsonomy.org/bibtex/2293031920b10fb76cc1949b31d76a5c8/masal}, doi = {10.1063/1.5017579}, interhash = {939066a78ed610e50c295bc9edd611ba}, intrahash = {293031920b10fb76cc1949b31d76a5c8}, journal = {Applied Physics Letters}, keywords = {MAPI SPV defect graphene interface interlayer perovskite}, number = 1, pages = 011604, publisher = {AIP Publishing}, timestamp = {2018-04-18T16:00:17.000+0200}, title = {Graphene assisted effective hole-extraction on In2O3: H/CH3NH3PbI3 interface: Studied by modulated surface spectroscopy}, url = {https://aip.scitation.org/doi/10.1063/1.5017579}, volume = 112, year = 2018 }