Advantages of nitrogen-doped graphene quantum dots as a green sensitizer with ZnO nanorod based photoanodes for solar energy conversion

被引：58

作者：

Majumder, Tanmoy ^{[1
]}

Mondal, Suvra Prakash ^{[1
]}

机构：

[1] Natl Inst Technol, Dept Phys, Agartala 799046, India

来源：

JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 2016年 / 769卷

关键词：

Graphene quantum dots (GQDs); Nitrogen-doped graphene quantum dots (N-GQDs); Photoelectrochemical cell; ZnO nanorods; Photoconversion efficiency; Photoresponse; CARBON DOTS; PHOTOLUMINESCENCE; CELLS;

D O I：

10.1016/j.jelechem.2016.03.018

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Graphene quantum dots (GQDs) and nitrogen -doped graphene quantum dots (N-GQDs) have been synthesized by a hydrothermal process. Optical absorption study revealed strong ultraviolet photoabsorption for both GQDs. An additional broad absorption band in the visible region has been observed for N doped GQDs. GQDs and N-GQDs both are highly luminescent and exhibit excitation dependent emission behaviors. Photoelectrochemical properties of GQD and N-GQD sensitized ZnO nanorods have been investigated in details. GQD modified nanorod photoanodes demonstrated superior photoconversion efficiency and incident photon to current conversion efficiency (IPCE) than pristine ZnO nanorods. N-GQD sensitized nanorods exhibited better photoelectrochemical properties than pristine GQD due to higher visible photoabsorption and lower interfacial resistance. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：48 / 52

页数：5

共 28 条

[1] Graphene Quantum Dots
Bacon, Mitchell
Bradley, Siobhan J.
Nann, Thomas
[J]. PARTICLE & PARTICLE SYSTEMS CHARACTERIZATION, 2014, 31 (04) : 415 - 428
[2] Photophysical Properties of Doped Carbon Dots (N, P, and B) and Their Influence on Electron/Hole Transfer in Carbon Dots-Nickel (II) Phthalocyanine Conjugates
Barman, Monoj Kumar
Jana, Bikash
Bhattacharyya, Santanu
Patra, Amitava
[J]. JOURNAL OF PHYSICAL CHEMISTRY C, 2014, 118 (34) : 20034 - 20041
[3] Blue luminescent graphene quantum dots and graphene oxide prepared by tuning the carbonization degree of citric acid
Dong, Yongqiang
Shao, Jingwei
Chen, Congqiang
Li, Hao
Wang, Ruixue
Chi, Yuwu
Lin, Xiaomei
Chen, Guonan
[J]. CARBON, 2012, 50 (12) : 4738 - 4743
[4] Multifunctional graphene incorporated polyacrylamide conducting gel electrolytes for efficient quasi-solid-state quantum dot-sensitized solar cells
Duan, Jialong
Tang, Qunwei
Li, Ru
He, Benlin
Yu, Liangmin
Yang, Peizhi
[J]. JOURNAL OF POWER SOURCES, 2015, 284 : 369 - 376
[5] Surrounding media sensitive photoluminescence of boron-doped graphene quantum dots for highly fluorescent dyed crystals, chemical sensing and bioimaging
Fan, Zetan
Li, Yunchao
Li, Xiaohong
Fan, Louzhen
Zhou, Shixin
Fang, Decai
Yang, Shihe
[J]. CARBON, 2014, 70 : 149 - 156
[6] Graphene Quantum Dots as a Green Sensitizer to Functionalize ZnO Nanowire Arrays on F-Doped SnO2 Glass for Enhanced Photoelectrochemical Water Splitting
Guo, Chun Xian
Dong, Yongqiang
Yang, Hong Bin
Li, Chang Ming
[J]. ADVANCED ENERGY MATERIALS, 2013, 3 (08) : 997 - 1003
[7] Complexation of polyaniline and graphene for efficient counter electrodes in dye-sensitized solar cells: Enhanced charge transfer ability
He, Benlin
Tang, Qunwei
Wang, Min
Ma, Chunqing
Yuan, Shuangshuang
[J]. JOURNAL OF POWER SOURCES, 2014, 256 : 8 - 13
[8] Synthesis and upconversion luminescence of N-doped graphene quantum dots
Li, Ming
Wu, Wenbin
Ren, Wencai
Cheng, Hui-Ming
Tang, Nujiang
Zhong, Wei
Du, Youwei
[J]. APPLIED PHYSICS LETTERS, 2012, 101 (10)
[9] Nitrogen-Doped Graphene Quantum Dots with Oxygen-Rich Functional Groups
Li, Yan
Zhao, Yang
Cheng, Huhu
Hu, Yue
Shi, Gaoquan
Dai, Liming
Qu, Liangti
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2012, 134 (01) : 15 - 18
[10] Liu CH, 2014, NAT NANOTECHNOL, V9, P273, DOI [10.1038/nnano.2014.31, 10.1038/NNANO.2014.31]

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