title: Metal-organic frameworks at interfaces in dye-sensitized solar cells.
abstract: ZIF-8, a kind of widely studied metal-organic frameworks, was used for the interfacial modification of dye-sensitized solar cells by a facile post-treatment strategy for the first time, which solved the problem of severely decreased short-circuit photocurrent in previous report. After the surface treatment, the performance of cells was obviously improved. The conditions for the deposition of ZIF-8 were optimized. The best photovoltaic property was obtained when the growth time of ZIF-8 was 7 min and the TiO2 photoanode was post-treated for 2 times. Besides the energy barrier effect of ZIF-8 that improved the open-circuit photovoltage and electron lifetime, the dyes adsorbed tightly on TiO2 surface was found to be a key point for the efficient electron injection and improved performance.
authors.affiliation: State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou, Fujian 350002 (PR China); Institute of Advanced Energy Materials, Fuzhou University, Fuzhou, Fujian 350002 (PR China); State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002 (PR China).
authors.forename: Yafeng
authors.initials: Y
authors.lastname: Li
authors.forename: Caiyun
authors.initials: C
authors.lastname: Chen
authors.forename: Xun
authors.initials: X
authors.lastname: Sun
authors.forename: Jie
authors.initials: J
authors.lastname: Dou
authors.forename: Mingdeng
authors.initials: M
authors.lastname: Wei
mesh_terms: D004396:Coloring Agents / Q000737:chemistry*; D011211:Electric Power Supplies; D004566:Electrodes; D009942:Organometallic Compounds / Q000737:chemistry*; D012993:Solar Energy; D014025:Titanium / Q000737:chemistry
chemical_list: D004396:Coloring Agents; D009942:Organometallic Compounds; C009495:titanium dioxide; D014025:Titanium
keywords: electrochemistry; metal-organic frameworks; photovoltaics; solar cells; surface treatment