Reversing CdS and ZnS preparation order on electrospun TiO2 and its effects on photoelectrochemical property
- Author(s): Yue Li 1 ; Fengxian Gao 1 ; Longtao Zhao 1 ; Yingjie Ye 1 ; Jian Liu 1 ; Yanzhong Tao 1
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Volume 11, Issue 11,
November 2016,
p.
731 – 733
DOI: 10.1049/mnl.2016.0134 , Online ISSN 1750-0443
CdS and ZnS co-sensitised one-dimensional TiO2 nanofibres were successfully prepared by a combination of electrospinning and successive ionic layer adsorption and reaction (SILAR) process because both electrospinning and SILAR method are inexpensive and scalable techniques. The composites of CdS-ZnS/TiO2 heterojunctions were compared with electrode containing only CdS being superior in terms of photoelectrochemical tests. The results showed that the photocurrent of CdS-ZnS/TiO2 nanofibres was seven times than that of CdS/TiO2 nanofibres and seven times than that of pure TiO2 nanofibres. The increased photocurrent is depended on the preparation order of ZnS and CdS on TiO2 nanofibres.
Inspec keywords: cadmium compounds; zinc compounds; semiconductor growth; nanofabrication; adsorption; semiconductor heterojunctions; nanofibres; titanium compounds; photoelectrochemistry; photoconductivity; wide band gap semiconductors; nanocomposites; electrospinning; II-VI semiconductors
Other keywords: electrospinning; SILAR method; photoelectrochemical property; heterojunctions; CdS-ZnS-TiO2; ZnS cosensitised one-dimensional TiO2 nanofibre preparation; successive ionic layer adsorption and reaction process; photoelectrochemical test; photocurrent
Subjects: Sorption and accommodation coefficients (surface chemistry); Electrical properties of semiconductor-to-semiconductor contacts, p-n junctions, and heterojunctions; Photolysis and photodissociation by IR, UV and visible radiation; Semiconductor junctions; Structure of solid clusters, nanoparticles, nanotubes and nanostructured materials; II-VI and III-V semiconductors; Nanometre-scale semiconductor fabrication technology; Low-dimensional structures: growth, structure and nonelectronic properties; Adsorption and desorption kinetics; evaporation and condensation; Electrochemistry and electrophoresis; Other methods of nanofabrication; Photoconduction and photovoltaic effects; photodielectric effects; Photoconducting materials and properties
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