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DOI	10.1016/j.solener.2019.08.065
	An investigation on surface modified TiO2 incorporated with graphene oxide for dye-sensitized solar cell
	Chong S.W.; Lai C.W.; Juan J.C.; Leo B.F.
发表日期	2019
ISSN	0038092X
起始页码	663
结束页码	671
卷号	191
英文摘要	In the present study, titanium dioxide (TiO2) nanoparticles were amine functionalized by using (3-aminopropyl)triethoxysilane (APTES) for the incorporation with graphene oxide (GO) to resolve the rapid agglomeration of nanoparticles. The zeta potentiometer revealed a significant increment of surface charge from 8.31 mV (untreated) to 34.5 mV (treated) for the TiO2 nanoparticles which promotes strong electrostatic attraction with GO. Electrophoretic deposition technique was then employed for the fabrication of the photoanodes by generating an electric field for the transportation of the composite material. This work aimed to find the optimum loading content of GO-TiO2 for a higher photoconversion efficiency of the dye-sensitized solar cell (DSSC). Among the samples, the sample loaded with 0.5 g TiO2 showed the lowest emission peak intensity (Raman PL) which indicates efficient trapping of photogenerated electrons. By applying the Kubelka-Munk (K-M) expression, the absorbance spectra were converted into Tauc plots through which the aforementioned sample was found to exhibit a band gap energy of 2.91 eV (suitable for light absorption in the visible light region). The electron transfer efficiency for the sample loaded with 0.5 g TiO2 was relatively higher than the other samples in the DSSCs yielding a photoconversion efficiency of 6.86% because of the effective reduction in electron recombination. International Solar Energy Society
英文关键词	Amine functionalized; DSSC; Electrophoretic deposition; Photoconversion; Surface charge
scopus关键词	Deposition; Electric fields; Electrophoresis; Energy gap; Graphene; Light; Light absorption; Materials handling; Nanoparticles; Nanostructured materials; Surface charge; TiO2 nanoparticles; Titanium dioxide; Voltage dividers; DSSC; Electron-transfer efficiency; Electrophoretic deposition techniques; Electrophoretic depositions; Electrostatic attractions; Functionalized; Photoconversion; Photoconversion efficiency; Dye-sensitized solar cells; absorbance; carbon; coating; dye; energy efficiency; nanoparticle; oxide; photovoltaic system; solar power; titanium
来源期刊	Solar Energy
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/176339
作者单位	Nanotechnology & Catalysis Research Centre (NANOCAT), Level 3, IPS Building, University of Malaya, Kuala Lumpur, 50603, Malaysia; Faculty of Medicine, University of Malaya, Kuala Lumpur, 50603, Malaysia
推荐引用方式 GB/T 7714	Chong S.W.,Lai C.W.,Juan J.C.,et al. An investigation on surface modified TiO2 incorporated with graphene oxide for dye-sensitized solar cell[J],2019,191.
APA	Chong S.W.,Lai C.W.,Juan J.C.,&Leo B.F..(2019).An investigation on surface modified TiO2 incorporated with graphene oxide for dye-sensitized solar cell.Solar Energy,191.
MLA	Chong S.W.,et al."An investigation on surface modified TiO2 incorporated with graphene oxide for dye-sensitized solar cell".Solar Energy 191(2019).