Electrical and optical properties of graphene-TiO2 nanocomposite and its applications in dye sensitized solar cells (DSSC)

被引：74

作者：

Kazmi, Safia A. ^{[1
]}

Hameed, Salman ^{[1
]}

Ahmed, Arham S. ^{[2
]}

Arshad, Mohd. ^{[3
]}

Azam, Ameer ^{[3
]}

机构：

[1] AMU, ZHCET, Dept Elect Engn, Aligarh, Uttar Pradesh, India

[2] AMU, Dept Phys, Aligarh, Uttar Pradesh, India

[3] AMU, ZHCET, Dept Appl Phys, Aligarh, Uttar Pradesh, India

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2017年 / 691卷

关键词：

DSSC; Graphene; TiO2; FABRICATION; REDUCTION; PERFORMANCE; COMPOSITE; FILMS;

D O I：

10.1016/j.jallcom.2016.08.319

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In the present investigation graphene-TiO2 (Gr-TiO2) nanocomposites were synthesized with different graphene concentrations. Graphene nanoparticles were synthesized using modified hummers method, TiO2 nanoparticles were purchased from Sigma Aldrich. It was observed that band gap was reduced from 3.16 eV to 2.2 eV with the increase in graphene concentration. Moreover, conductivity increases with graphene concentration which corroborates well with the reduction in band gap. Gr -TiO2 nanocomposites were used as photo anode of DSSCs. Photoelectrical conversion efficiency of DSSC was improved with the introduction of graphene and optimum results were obtained for 3.0 wt percent of graphene concentration. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：659 / 665

页数：7

共 38 条

[1]

Asha A. M., 2012, RSC ADV, V2, P13032

[2] Investigation of electrical properties of Mn doped tin oxide nanoparticles using impedance spectroscopy [J].

Azam, Ameer ;

Ahmed, Arham S. ;

Chaman, M. ;

Naqvi, A. H. .

JOURNAL OF APPLIED PHYSICS, 2010, 108 (09)

[3] Study of electrical properties of nickel doped SnO2 ceramic nanoparticles [J].

Azam, Ameer ;

Ahmed, Arham S. ;

Ansari, M. Shahnawaze ;

Shafeeq M, Muhamed ;

Naqvi, Alim H. .

JOURNAL OF ALLOYS AND COMPOUNDS, 2010, 506 (01) :237-242

[4] Improving the performance of dye-sensitized solar cells with TiO2/graphene/TiO2 sandwich structure [J].

Chen, Lung-Chien ;

Hsu, Chih-Hung ;

Chan, Po-Shun ;

Zhang, Xiuyu ;

Huang, Cing-Jhih .

NANOSCALE RESEARCH LETTERS, 2014, 9 :1-7

[5] Recent advances in multifunctional nanocarbons used in dye-sensitized solar cells [J].

Costa, Ruben D. ;

Lodermeyer, Fabian ;

Casillas, Ruben ;

Guldi, Dirk M. .

ENERGY & ENVIRONMENTAL SCIENCE, 2014, 7 (04) :1281-1296

[6] Fabrication and Characterisation of the Graphene Ring Micro Electrode (GRiME) with an Integrated, Concentric Ag/AgCl Reference Electrode [J].

Dickinson, James W. ;

Bromley, Michael ;

Andrieux, Fabrice P. L. ;

Boxall, Colin .

SENSORS, 2013, 13 (03) :3635-3651

[7] Reduction of graphene oxide at room temperature with vitamin C for RGO-TiO2 photoanodes in dye-sensitized solar cell [J].

Ding, Hui ;

Zhang, Sam ;

Chen, Ji-Tao ;

Hu, Xiao-Ping ;

Du, Zhao-Fu ;

Qiu, Yue-Xiu ;

Zhao, Dong-Liang .

THIN SOLID FILMS, 2015, 584 :29-36

[8] SnO2 nanosheets grown on graphene sheets with enhanced lithium storage properties [J].

Ding, Shujiang ;

Luan, Deyan ;

Boey, Freddy Yin Chiang ;

Chen, Jun Song ;

Lou, Xiong Wen .

CHEMICAL COMMUNICATIONS, 2011, 47 (25) :7155-7157

[9] Synthesis of mesoporous titanium dioxide by soft template based approach: characterization and application in dye-sensitized solar cells [J].

Gajjela, Satyanarayana Reddy ;

Ananthanarayanan, Krishnamoorthy ;

Yap, Christopher ;

Graetzel, Michael ;

Balaya, Palani .

ENERGY & ENVIRONMENTAL SCIENCE, 2010, 3 (06) :838-845

[10] Photoelectrochemical cells [J].

Grätzel, M .

NATURE, 2001, 414 (6861) :338-344

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