Arrays of ZnO/ZnxCd1- xse nanocables: Band gap engineering and photovoltaic applications

Jun Xu; Xia Yang; Hongkang Wang; Xue Chen; Chunyan Luan; Zongxiang Xu; Zhenzhen Lu; V. A L Roy; Wenjun Zhang; Chun-Sing Lee

doi:10.1021/nl201934k

Arrays of ZnO/Zn_xCd_{1- x}se nanocables: Band gap engineering and photovoltaic applications

Jun Xu
, Xia Yang
, Hongkang Wang
, Xue Chen
, Chunyan Luan
, Zongxiang Xu
, Zhenzhen Lu
, V. A L Roy
, Wenjun Zhang
, Chun-Sing Lee

Centre of Super-Diamond and Advanced Films

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

186 Citations (Scopus)

Abstract

Arrays of ZnO/Zn_xCd_1-xSe (0 ≤x ≤1) core/shell nanocables with shells of tunable compositions have been synthesized on fluorine-doped tin oxide glass substrates via a simple ion-exchange approach. Through the effects of stoichiometry and type II heterojunction, optical absorptions of the nanocable arrays can be controllably tuned to cover almost the entire visible spectrum. Lattice parameters and band gaps of the ternary Zn_xCd_1-xSe shells were found to have respectively linear and quadratic relationships with the Zn content (x). These ZnO/Zn _xCd_1-xSe nanocable arrays are further demonstrated to be promising photoelectrodes for photoelectrochemical solar cells, giving a maximum power conversion efficiency up to 4.74%. © 2011 American Chemical Society.

Original language	English
Pages (from-to)	4138-4143
Journal	Nano Letters
Volume	11
Issue number	10
DOIs	https://doi.org/10.1021/nl201934k
Publication status	Published - 12 Oct 2011

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Research Keywords

band gap engineering
CdSe
solar cells
type II
Vegard's law
ZnSe

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10.1021/nl201934k

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title = "Arrays of ZnO/ZnxCd1- xse nanocables: Band gap engineering and photovoltaic applications",

abstract = "Arrays of ZnO/ZnxCd1-xSe (0 ≤x ≤1) core/shell nanocables with shells of tunable compositions have been synthesized on fluorine-doped tin oxide glass substrates via a simple ion-exchange approach. Through the effects of stoichiometry and type II heterojunction, optical absorptions of the nanocable arrays can be controllably tuned to cover almost the entire visible spectrum. Lattice parameters and band gaps of the ternary ZnxCd1-xSe shells were found to have respectively linear and quadratic relationships with the Zn content (x). These ZnO/Zn xCd1-xSe nanocable arrays are further demonstrated to be promising photoelectrodes for photoelectrochemical solar cells, giving a maximum power conversion efficiency up to 4.74\%. {\textcopyright} 2011 American Chemical Society.",

keywords = "band gap engineering, CdSe, solar cells, type II, Vegard's law, ZnSe",

author = "Jun Xu and Xia Yang and Hongkang Wang and Xue Chen and Chunyan Luan and Zongxiang Xu and Zhenzhen Lu and Roy, \{V. A L\} and Wenjun Zhang and Chun-Sing Lee",

year = "2011",

month = oct,

day = "12",

doi = "10.1021/nl201934k",

language = "English",

volume = "11",

pages = "4138--4143",

journal = "Nano Letters",

issn = "1530-6984",

publisher = "American Chemical Society",

number = "10",

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TY - JOUR

T1 - Arrays of ZnO/ZnxCd1- xse nanocables

T2 - Band gap engineering and photovoltaic applications

AU - Xu, Jun

AU - Yang, Xia

AU - Wang, Hongkang

AU - Chen, Xue

AU - Luan, Chunyan

AU - Xu, Zongxiang

AU - Lu, Zhenzhen

AU - Roy, V. A L

AU - Zhang, Wenjun

AU - Lee, Chun-Sing

PY - 2011/10/12

Y1 - 2011/10/12

N2 - Arrays of ZnO/ZnxCd1-xSe (0 ≤x ≤1) core/shell nanocables with shells of tunable compositions have been synthesized on fluorine-doped tin oxide glass substrates via a simple ion-exchange approach. Through the effects of stoichiometry and type II heterojunction, optical absorptions of the nanocable arrays can be controllably tuned to cover almost the entire visible spectrum. Lattice parameters and band gaps of the ternary ZnxCd1-xSe shells were found to have respectively linear and quadratic relationships with the Zn content (x). These ZnO/Zn xCd1-xSe nanocable arrays are further demonstrated to be promising photoelectrodes for photoelectrochemical solar cells, giving a maximum power conversion efficiency up to 4.74%. © 2011 American Chemical Society.

AB - Arrays of ZnO/ZnxCd1-xSe (0 ≤x ≤1) core/shell nanocables with shells of tunable compositions have been synthesized on fluorine-doped tin oxide glass substrates via a simple ion-exchange approach. Through the effects of stoichiometry and type II heterojunction, optical absorptions of the nanocable arrays can be controllably tuned to cover almost the entire visible spectrum. Lattice parameters and band gaps of the ternary ZnxCd1-xSe shells were found to have respectively linear and quadratic relationships with the Zn content (x). These ZnO/Zn xCd1-xSe nanocable arrays are further demonstrated to be promising photoelectrodes for photoelectrochemical solar cells, giving a maximum power conversion efficiency up to 4.74%. © 2011 American Chemical Society.

KW - band gap engineering

KW - CdSe

KW - solar cells

KW - type II

KW - Vegard's law

KW - ZnSe

UR - https://www.scopus.com/pages/publications/80054046242

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-80054046242&origin=recordpage

U2 - 10.1021/nl201934k

DO - 10.1021/nl201934k

M3 - RGC 21 - Publication in refereed journal

SN - 1530-6984

VL - 11

SP - 4138

EP - 4143

JO - Nano Letters

JF - Nano Letters

IS - 10

ER -

Arrays of ZnO/Zn_xCd_{1- x}se nanocables: Band gap engineering and photovoltaic applications

Abstract

UN SDGs

Research Keywords

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Correction to Arrays of ZnO/Zn_xCd_1–xSe Nanocables: Band Gap Engineering and Photovoltaic Applications(Nano Letters (2011) 11 (4138-4143) DOI 10.1021/nl201934k)

Cite this

Arrays of ZnO/ZnxCd1- xse nanocables: Band gap engineering and photovoltaic applications

Abstract

UN SDGs

Research Keywords

Access Output

Other Access Options

Permanent Link

Other Files and Links

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Research output

Correction to Arrays of ZnO/ZnxCd1–xSe Nanocables: Band Gap Engineering and Photovoltaic Applications(Nano Letters (2011) 11 (4138-4143) DOI 10.1021/nl201934k)

Cite this

Arrays of ZnO/Zn_xCd_{1- x}se nanocables: Band gap engineering and photovoltaic applications

Correction to Arrays of ZnO/Zn_xCd_1–xSe Nanocables: Band Gap Engineering and Photovoltaic Applications(Nano Letters (2011) 11 (4138-4143) DOI 10.1021/nl201934k)