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Ti/Au Cathode for Electronic transport material-free organic-inorganic hybrid perovskite solar cells.


ABSTRACT: We have fabricated organic-inorganic hybrid perovskite solar cell that uses a Ti/Au multilayer as cathode and does not use electron transport materials, and achieved the highest power conversion efficiency close to 13% with high reproducibility and hysteresis-free photocurrent curves. Our cell has a Schottky planar heterojunction structure (ITO/PEDOT:PSS/perovskite/Ti/Au), in which the Ti insertion layer isolate the perovskite and Au layers, thus proving good contact between the Au and perovskite and increasing the cells' shunt resistance greatly. Moreover, the Ti/Au cathode in direct contact with hybrid perovskite showed no reaction for a long-term exposure to the air, and can provide sufficient protection and avoid the perovskite and PEDOT:PSS layers contact with moisture. Hence, the Ti/Au based devices retain about 70% of their original efficiency after 300?h storage in the ambient environment.

SUBMITTER: Shi T 

PROVIDER: S-EPMC5171770 | biostudies-literature | 2016 Dec

REPOSITORIES: biostudies-literature

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Ti/Au Cathode for Electronic transport material-free organic-inorganic hybrid perovskite solar cells.

Shi Tongfei T   Chen Jian J   Zheng Jianqiang J   Li Xinhua X   Zhou Bukang B   Cao Huaxiang H   Wang Yuqi Y  

Scientific reports 20161220


We have fabricated organic-inorganic hybrid perovskite solar cell that uses a Ti/Au multilayer as cathode and does not use electron transport materials, and achieved the highest power conversion efficiency close to 13% with high reproducibility and hysteresis-free photocurrent curves. Our cell has a Schottky planar heterojunction structure (ITO/PEDOT:PSS/perovskite/Ti/Au), in which the Ti insertion layer isolate the perovskite and Au layers, thus proving good contact between the Au and perovskit  ...[more]

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