Enhanced photoelectric properties of CdSe/graphene composites with various contents of graphene

被引：16

作者：

Lei, Yun ^{[1
]}

Fang, Chengyi ^{[1
]}

Xu, Jun ^{[1
]}

He, Yue ^{[1
]}

机构：

[1] Wuhan Univ Technol, Sch Resources & Environm Engn, 122 Luoshi Rd, Wuhan 430070, Hubei, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2016年 / 42卷 / 04期

基金：

中国国家自然科学基金;

关键词：

CdSe/graphene composites; Graphene content; Photoelectric characteristics; CDSE QUANTUM DOTS; REDUCTION;

D O I：

10.1016/j.ceramint.2015.12.063

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

CdSe/graphene composites with different contents of graphene were prepared by the solvothennal method. The composites were characterized by X-ray diffraction, scanning electron microscope and further investigated by transient photocurrent responses and electrochemical impedance spectroscopy. Compared with pure CdSe particles, CdSe/graphene composites show improved photocurrent responses and decreased electron transfer resistance due to the presence of graphene., which acts as an electron collector and transporter as well as the supporting matrix for CdSe particles. The composites were synthesized by varying the graphene content from 0.5 wt% to 6 wt%, which has been experienced to exert great influence on the photoelectric characteristics of CdSe/graphene composites. A higher photocurrent density and smaller arc radius can be observed for 0.5% CdSe/graphene composites. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

引用

页码：5326 / 5330

页数：5

共 17 条

[1] Diffused sunlight driven highly synergistic pathway for complete mineralization of organic contaminants using reduced graphene oxide supported photocatalyst [J].

Babu, Sundaram Ganesh ;

Vinoth, Ramalingam ;

Neppolian, Bernaurdshaw ;

Dionysiou, Dionysios D. ;

Ashokkumar, Muthupandian .

JOURNAL OF HAZARDOUS MATERIALS, 2015, 291 :83-92

[2] Fabrication and micro-photoluminescence property of CdSe/CdS core/shell nanowires [J].

Dai, Guozhang ;

Gou, Guangyang ;

Wu, Zeming ;

Chen, Yu ;

Li, Hongjian ;

Wan, Qiang ;

Zou, Bingsuo .

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2015, 119 (01) :343-349

[3] Crumpled graphene: preparation and applications [J].

El Rouby, Waleed M. A. .

RSC ADVANCES, 2015, 5 (82) :66767-66796

[4] Self-powered flexible and transparent photovoltaic detectors based on CdSe nanobelt/graphene Schottky junctions [J].

Gao, Zhiwei ;

Jin, Weifeng ;

Zhou, Yu ;

Dai, Yu ;

Yu, Bin ;

Liu, Chu ;

Xu, Wanjin ;

Li, Yanping ;

Peng, Hailin ;

Liu, Zhongfan ;

Dai, Lun .

NANOSCALE, 2013, 5 (12) :5576-5581

[5] The characteristic study and sonocatalytic performance of CdSe-graphene as catalyst in the degradation of azo dyes in aqueous solution under dark conditions [J].

Ghosh, Trisha ;

Ullah, Kefayat ;

Nikam, Vikram ;

Park, Chong-Yeon ;

Meng, Ze-Da ;

Oh, Won-Chun .

ULTRASONICS SONOCHEMISTRY, 2013, 20 (02) :768-776

[6] Improving Open Circuit Potential in Hybrid P3HT:CdSe Bulk Heterojunction Solar Cells via Colloidal tert-Butylthiol Ligand Exchange [J].

Greaney, Matthew J. ;

Das, Saptaparna ;

Webber, David H. ;

Bradforth, Stephen E. ;

Brutchey, Richard L. .

ACS NANO, 2012, 6 (05) :4222-4230

[7] Comparative experiments of graphene covalently and physically binding CdSe quantum dots to enhance the electron transport in flexible photovoltaic devices [J].

Jung, Mi-Hee ;

Chu, Moo-Jung .

NANOSCALE, 2014, 6 (15) :9241-9249

[8] Immobilizing ternary ZnXCd1-XS on graphene via solvothermal method for enhanced photoelectric properties [J].

Lei, Yun ;

Chen, Feifei ;

Xu, Jun .

APPLIED SURFACE SCIENCE, 2015, 357 :155-159

[9] Solvothermal synthesis of CdS-graphene composites by varying the Cd/S ratio [J].

Lei, Yun ;

Xu, Jun ;

Li, Rong ;

Chen, Feifei .

CERAMICS INTERNATIONAL, 2015, 41 (02) :3158-3161

[10] Fortification of CdSe Quantum Dots with Graphene Oxide. Excited State Interactions and Light Energy Conversion [J].

Lightcap, Ian V. ;

Kamat, Prashant V. .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2012, 134 (16) :7109-7116

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