Graphene films decorated with metal sulfide nanoparticles for use as counter electrodes of dye-sensitized solar cells
Graphene films decorated with metal sulfide nanoparticles for use as counter electrodes of dye-sensitized solar cells
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金属硫化物纳米颗粒修饰的石墨烯薄膜用作染料敏化太阳能电池的对电极
DOI：
10.1016/j.carbon.2013.04.075
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发表时间：
2013-09-01
期刊：
影响因子：
10.9
通讯作者：
Jiang, Mianheng
中科院分区：
文献类型：
--
作者：
Bi, Hui;Zhao, Wei;Jiang, Mianheng
金属硫化物（MS，M = Ni，Co）纳米颗粒（NPs）/石墨烯复合膜是一种新型的无氧化物和铂（Pt）的透明导电对电极，可用于染料敏化太阳能电池（DSSC）。这样的DSSC显示出更高的光伏转换效率，为5.25%（NiS/石墨烯）和5.04%（CoS/石墨烯），相比之下（Pt/氟掺杂的氧化锡）为5.00%。优异的DSSC效率主要是由于MS和石墨烯膜的上级电催化活性以及石墨烯膜的高电学性质（9.57 Ω/sq）。MS NP和石墨烯膜之间的优异电荷转移是由于独特的MS NP和高表面积石墨烯结构。石墨烯薄膜是通过化学气相沉积直接生长在介电SiO2衬底上。通过浸渍、涂覆MS前体M（C3 HSOS 2）（2）将MS NP均匀地注入石墨烯膜上，并在Ar下在400 ℃下进一步退火30分钟。(C)2013爱思唯尔有限公司保留所有权利。
The composite films of metal sulfide (MS, M = Ni, Co) nanoparticles (NPs)/graphene films were proposed to be novel transparent conductive oxide- and platinum (Pt)-free counter electrodes with high electrocatalytic activity for dye-sensitized solar cells (DSSCs). Such DSSCs show higher photovoltaic conversion efficiencies of 5.25% (NiS/graphene) and 5.04% (CoS/graphene), compared with 5.00% for (Pt/fluorine-doped tin oxide). The excellent DSSC efficiencies are mainly due to the superior electrocatalytic activity of the MS and graphene films, and highly electrical properties of graphene films (9.57 Omega/sq). The excellent charge transfer between MS NPs and graphene films is due to the unique MS NPs and high surface area graphene structure. The graphene films were directly grown on dielectric SiO2 substrates by chemical vapor deposition. MS NPs were uniformly implanted on the graphene films by dip,coating of MS precursors M(C3HSOS2)(2), and further annealed at 400 degrees C for 30 min under Ar. (C) 2013 Elsevier Ltd. All rights reserved.