Stable Core/Shell CdTe/Mn-CdS Quantum Dots Sensitized Three-Dimensional, Macroporous ZnO Nanosheet Photoelectrode and Their Photoelectrochemical Properties

被引：34
作者：
Li, Weili [1 ]
Sheng, Pengtao [1 ]
Feng, Hongyan [1 ]
Yin, Xuehua [1 ]
Zhu, Xuewei [1 ]
Yang, Xu [1 ]
Cai, Qingyun [1 ]
机构：
[1] Hunan Univ, Coll Chem & Chem Engn, State Key Lab Chemobiosensing & Chemometr, Changsha 410082, Hunan, Peoples R China
来源：
ACS APPLIED MATERIALS & INTERFACES | 2014年 / 6卷 / 15期
基金：
美国国家科学基金会;
关键词：
SILAR; photoelectrochemical; quantum dots; macroporous ZnO nanosheet; photocatalytic degradation; SOLAR-CELLS; BAND-GAP; ARRAYS; ELECTRODEPOSITION; TRANSITION; EFFICIENCY; NETWORK; CUINS2; ENERGY; LAYER;
D O I：
10.1021/am502151m
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A novel photoelectrode based on ZnS/CdTe/Mn-CdS/ZnS-sensitized three-dimensional macroporous ZnO nanosheet (NS) has been prepared by electrodeposition and successive ion layer adsorption and reaction (SILAR) method. The photoelectrode performances were significantly improved through the coupling of the core/shell CdTe/Mn-CdS quantum dots (QDs) with ZnO NS, and the introduction of the ZnS layer as a potential barrier. The photocurrent density systematically increases from ZnO NS (0.45 mA/cm(2)), CdTe/Mn-CdS/ZnO NS (4.98 mA/cm(2)), to ZnS/CdTe/Mn-CdS/ZnS/ZnO (6.23 mA/cm(2)) under the irradiation of AM 1.5G simulated sunlight. More important, the ZnS/CdTe/Mn-CdS/ZnS-sensitized ZnO NS photoelectrode provides a remarkable photoelectrochernical cell efficiency of 4.20% at -0.39 V vs Ag/AgCl.
引用
收藏
页码：12353 / 12362
页数：10
相关论文
共 40 条
[11]   Fabrication of PbS Nanoparticle-Sensitized TiO2 Nanotube Arrays and Their Photoelectrochemical Properties [J].
Kang, Qing ;
Liu, Shaohuan ;
Yang, Lixia ;
Cai, Qingyun ;
Grimes, Craig A. .
ACS APPLIED MATERIALS & INTERFACES, 2011, 3 (03) :746-749
[12]   Doping Transition Metal (Mn or Cu) Ions in Semiconductor Nanocrystals [J].
Karan, Niladri S. ;
Sarma, D. D. ;
Kadam, R. M. ;
Pradhan, Narayan .
JOURNAL OF PHYSICAL CHEMISTRY LETTERS, 2010, 1 (19) :2863-2866
[13]   Shell Thickness Dependent Photocatalytic Properties of ZnO/CdS Core-Shell Nanorods [J].
Khanchandani, Sunita ;
Kundu, Simanta ;
Patra, Amitava ;
Ganguli, Ashok K. .
JOURNAL OF PHYSICAL CHEMISTRY C, 2012, 116 (44) :23653-23662
[14]   Nanowire dye-sensitized solar cells [J].
Law, M ;
Greene, LE ;
Johnson, JC ;
Saykally, R ;
Yang, PD .
NATURE MATERIALS, 2005, 4 (06) :455-459
[15]   Multilayered Semiconductor (CdS/CdSe/ZnS)-Sensitized TiO2 Mesoporous Solar Cells: All Prepared by Successive Ionic Layer Adsorption and Reaction Processes [J].
Lee, Hyo Joong ;
Bang, Jiwon ;
Park, Juwon ;
Kim, Sungjee ;
Park, Su-Moon .
CHEMISTRY OF MATERIALS, 2010, 22 (19) :5636-5643
[16]   Photosensitization of ZnO nanowires with CdSe quantum dots for photovoltaic devices [J].
Leschkies, Kurtis S. ;
Divakar, Ramachandran ;
Basu, Joysurya ;
Enache-Pommer, Emil ;
Boercker, Janice E. ;
Carter, C. Barry ;
Kortshagen, Uwe R. ;
Norris, David J. ;
Aydil, Eray S. .
NANO LETTERS, 2007, 7 (06) :1793-1798
[17]   High-performance quantum dot-sensitized solar cells based on sensitization with CuInS2 quantum dots/CdS heterostructure [J].
Li, Tzung-Luen ;
Lee, Yuh-Lang ;
Teng, Hsisheng .
ENERGY & ENVIRONMENTAL SCIENCE, 2012, 5 (01) :5315-5324
[18]   CdTe Quantum Dots Encapsulated ZnO Nanorods for Highly Efficient Photoelectrochemical Degradation of Phenols [J].
Liu, Danqing ;
Zheng, Zhaozhu ;
Wang, Chaoqun ;
Yin, Yongqi ;
Liu, Shaoqin ;
Yang, Bin ;
Jiang, Zhaohua .
JOURNAL OF PHYSICAL CHEMISTRY C, 2013, 117 (50) :26529-26537
[19]   Enhancement of electrochemical and photoelectrochemical properties of fibrous Zn and ZnO electrodes [J].
López, CM ;
Choi, KS .
CHEMICAL COMMUNICATIONS, 2005, (26) :3328-3330
[20]   Highly efficient core-shell CuInS2-Mn doped CdS quantum dot sensitized solar cells [J].
Luo, Jianheng ;
Wei, Huiyun ;
Huang, Qingli ;
Hu, Xing ;
Zhao, Haofei ;
Yu, Richeng ;
Li, Dongmei ;
Luo, Yanhong ;
Meng, Qingbo .
CHEMICAL COMMUNICATIONS, 2013, 49 (37) :3881-3883
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