Array of CdSe QD-sensitized ZnO nanorods serves as photoanode for water splitting

N. Chouhan; C. L. Yeh; S. F. Hu; J. H. Huang; C. W. Tsai; R. S. Liu; W. S. Chang; K. H. Chen

doi:10.1149/1.3473788

Array of CdSe QD-sensitized ZnO nanorods serves as photoanode for water splitting

N. Chouhan^*
, C. L. Yeh
, S. F. Hu
, J. H. Huang
, C. W. Tsai
, R. S. Liu
, W. S. Chang
, K. H. Chen

^*Corresponding author for this work

Department of Physics

Research output: Contribution to journal › Article › peer-review

46 Citations (Scopus)

Abstract

Aqueous chemically grown ZnO nanorods (NRs) arrays were sensitized by CdSe quantum dots (QDs) and were investigated as photoanode for photoelectrochemical water splitting under visible light (>420 nm) illumination. Significant enhancement of the factors 1.6 and 6 was observed for CdSe (QD)-sensitized nonannealed and annealed samples of ZnO NRs over pristine ZnO NRs arrays, respectively. The highest photocurrent density of 2.48 mA/ cm² was registered for the annealed CdSe (QD)/ZnO (NR) arrays films at zero applied voltage and 100 mW/ cm² (AM 1.5 G, Air Mass 1.5 Global) power density and their corresponding photocurrent density for pristine ZnO NR array was recorded as 0.41 mA/ cm².

Original language	English
Pages (from-to)	B1430-B1433
Journal	Journal of the Electrochemical Society
Volume	157
Issue number	10
DOIs	https://doi.org/10.1149/1.3473788
Publication status	Published - 2010

UN SDGs

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

SDG 7 Affordable and Clean Energy

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Renewable Energy, Sustainability and the Environment
Surfaces, Coatings and Films
Electrochemistry
Materials Chemistry

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title = "Array of CdSe QD-sensitized ZnO nanorods serves as photoanode for water splitting",

abstract = "Aqueous chemically grown ZnO nanorods (NRs) arrays were sensitized by CdSe quantum dots (QDs) and were investigated as photoanode for photoelectrochemical water splitting under visible light (>420 nm) illumination. Significant enhancement of the factors 1.6 and 6 was observed for CdSe (QD)-sensitized nonannealed and annealed samples of ZnO NRs over pristine ZnO NRs arrays, respectively. The highest photocurrent density of 2.48 mA/ cm2 was registered for the annealed CdSe (QD)/ZnO (NR) arrays films at zero applied voltage and 100 mW/ cm2 (AM 1.5 G, Air Mass 1.5 Global) power density and their corresponding photocurrent density for pristine ZnO NR array was recorded as 0.41 mA/ cm2.",

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doi = "10.1149/1.3473788",

language = "English",

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TY - JOUR

T1 - Array of CdSe QD-sensitized ZnO nanorods serves as photoanode for water splitting

AU - Chouhan, N.

AU - Yeh, C. L.

AU - Hu, S. F.

AU - Huang, J. H.

AU - Tsai, C. W.

AU - Liu, R. S.

AU - Chang, W. S.

AU - Chen, K. H.

PY - 2010

Y1 - 2010

N2 - Aqueous chemically grown ZnO nanorods (NRs) arrays were sensitized by CdSe quantum dots (QDs) and were investigated as photoanode for photoelectrochemical water splitting under visible light (>420 nm) illumination. Significant enhancement of the factors 1.6 and 6 was observed for CdSe (QD)-sensitized nonannealed and annealed samples of ZnO NRs over pristine ZnO NRs arrays, respectively. The highest photocurrent density of 2.48 mA/ cm2 was registered for the annealed CdSe (QD)/ZnO (NR) arrays films at zero applied voltage and 100 mW/ cm2 (AM 1.5 G, Air Mass 1.5 Global) power density and their corresponding photocurrent density for pristine ZnO NR array was recorded as 0.41 mA/ cm2.

AB - Aqueous chemically grown ZnO nanorods (NRs) arrays were sensitized by CdSe quantum dots (QDs) and were investigated as photoanode for photoelectrochemical water splitting under visible light (>420 nm) illumination. Significant enhancement of the factors 1.6 and 6 was observed for CdSe (QD)-sensitized nonannealed and annealed samples of ZnO NRs over pristine ZnO NRs arrays, respectively. The highest photocurrent density of 2.48 mA/ cm2 was registered for the annealed CdSe (QD)/ZnO (NR) arrays films at zero applied voltage and 100 mW/ cm2 (AM 1.5 G, Air Mass 1.5 Global) power density and their corresponding photocurrent density for pristine ZnO NR array was recorded as 0.41 mA/ cm2.

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JO - Journal of the Electrochemical Society

JF - Journal of the Electrochemical Society

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ER -

Array of CdSe QD-sensitized ZnO nanorods serves as photoanode for water splitting

Abstract

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