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Hsu CH, Chen DH. CdS nanoparticles sensitization of Al-doped ZnO nanorod array thin film with hydrogen treatment as an ITO/FTO-free photoanode for solar water splitting. Nanoscale Res Lett. 2012;7(1):593doi: 10.1186/1556-276X-7-593.
Hsu, C. H., & Chen, D. H. (2012). CdS nanoparticles sensitization of Al-doped ZnO nanorod array thin film with hydrogen treatment as an ITO/FTO-free photoanode for solar water splitting. Nanoscale research letters, 7(1), 593. https://doi.org/10.1186/1556-276X-7-593
Hsu, Chih-Hsiung, and Chen, Dong-Hwang. "CdS nanoparticles sensitization of Al-doped ZnO nanorod array thin film with hydrogen treatment as an ITO/FTO-free photoanode for solar water splitting." Nanoscale research letters vol. 7,1 (2012): 593. doi: https://doi.org/10.1186/1556-276X-7-593
Hsu CH, Chen DH. CdS nanoparticles sensitization of Al-doped ZnO nanorod array thin film with hydrogen treatment as an ITO/FTO-free photoanode for solar water splitting. Nanoscale Res Lett. 2012 Oct 25;7(1):593. doi: 10.1186/1556-276X-7-593. PMID: 23098050; PMCID: PMC3502475.
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Nanoscale Res Lett. 2012 Oct 25;7(1):593. doi: 10.1186/1556-276X-7-593.

CdS nanoparticles sensitization of Al-doped ZnO nanorod array thin film with hydrogen treatment as an ITO/FTO-free photoanode for solar water splitting.

Nanoscale research letters

Chih-Hsiung Hsu, Dong-Hwang Chen

Affiliations

  1. Department of Chemical Engineering, National Cheng Kung University, Tainan, Taiwan 701, Republic of China. [email protected].

PMID: 23098050 PMCID: PMC3502475 DOI: 10.1186/1556-276X-7-593

Abstract

Aluminum-doped zinc oxide (AZO) nanorod array thin film with hydrogen treatment possesses the functions of transparent conducting oxide thin film and 1-D nanostructured semiconductor simultaneously. To enhance the absorption in the visible light region, it is sensitized by cadmium sulfide (CdS) nanoparticles which efficiently increase the absorption around 460 nm. The CdS nanoparticles-sensitized AZO nanorod array thin film with hydrogen treatment exhibits significantly improved photoelectrochemical property. After further heat treatment, a maximum short current density of 5.03 mA cm-2 is obtained under illumination. They not only are much higher than those without CdS nanoparticles sensitization and those without Al-doping and/or hydrogen treatment, but also comparable and even slightly superior to some earlier works for the CdS-sensitized zinc oxide nanorod array thin films with indium tin oxide (ITO) or fluorine-doped tin oxide (FTO) as substrates. This demonstrated successfully that the AZO nanorod array thin film with hydrogen treatment is quite suitable as an ITO/FTO-free photoanode and has great potentials in solar water splitting after sensitization by quantum dots capable of visible light absorption.

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