Enhance of TiO_2 dopants incorporated reduced graphene oxide via RF magnetron sputtering for efficient dye-sensitised solar cells

作     者：Foo Wah Low Chin Wei Lai Kian Mun Lee Joon Ching Juan 

作者机构：Nanotechnology and Catalysis Research Centre Institute Postgraduate Studies University of Malaya 

出 版 物：《Rare Metals》 (稀有金属（英文版）)

年 卷 期：2018年第37卷第11期

页      面：919-928页

核心收录：

学科分类：081702[工学-化学工艺] 08[工学] 0817[工学-化学工程与技术] 0806[工学-冶金工程] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0703[理学-化学] 0702[理学-物理学] 

基　　金：financially supported by the University Malaya Prototype Grant (No. RU005G-2016) the Transdisciplinary Research Grant Scheme, TRGS (No. TR002A-2014B) the University Malaya Research Grant (No. RP045B-17AET) the Global Collaborative Programme-SATU Joint Research Scheme from the University of Malaya (No. ST007-2017) 

主　　题：Dye-sensitised solar cell RF magnetron sputtering Titanium dioxide Reduced graphene oxide 

摘      要：In particular, the dye-sensitised solar cells(DSSCs) have a high potential in the rational energy conversion efficiency to secure our sustainable energy source.In the present study, advanced radio frequency(RF) magnetron sputtering technique was applied to incorporate titanium dioxide(TiO) dopants into reduced graphene oxide(rGO) nanosheet for improving the power conversion efficiency(PCE) of DSSCs device. An optimum TiOcontent incorporated onto rGO nanosheet plays an important role in improving the PCE of DSSCs by minimising the recombination losses of photo-induced charge carriers.Based on the results obtained, 40-s sputtering duration for incorporating TiOdopants onto rGO nanosheet exhibits a maximum PCE of 8.78% than that of pure rGO film(0.68%). In fact, the presence of optimum content of TiOdopants within rGO nanosheet could act as mediators for efficient separation photo-induced charge carriers. However, the excessive of sputtering duration(e.g. 60 s) of TiOdopants onto rGO nanosheet results higher charge recombination and lowers the PCE of DSSCs(5.39%).