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Content Provider | SpringerLink |
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Author | Chen, Peiyang Liu, Zhifeng Geng, Xuemin Wang, Jialu Zhang, Min Liu, Junqi Yan, Lu |
Copyright Year | 2016 |
Abstract | In this paper, a ZnO hemisphere pits nanowire (HPW) photoelectrode is fabricated by using polystyrene (PS) nanospheres as templates, and CdS is deposited on ZnO nanowires to improve further its photoelectrochemical performance. Firstly, PS nanospheres are deposited on ZnO seed layers by air–liquid interface self-assembling method. Subsequently, ZnO HPWs are grown which effected by PS nanospheres. Finally, CdS nanoparticles were deposited on the ZnO HPWs to construct ZnO/CdS heterojunction photoanodes by successive ionic layer adsorption and reaction method. This hemisphere pits nanowires composite structure demonstrated a highly efficient photoelectrocatalytic performance with a remarkable photocurrent density of 2.27 mA cm$^{−2}$ determined at 0.8 V versus Ag/AgCl. The enhanced performance of ZnO hemisphere pits nanowires/CdS nanoparticles (ZnO/CdS) composite photoanodes originated from the enhanced light absorption in the visible region and reduced photogenerated charges recombination rate. Furthermore, compared with ordinary nanowire arrays, hemisphere pits nanowire structure can reflect light more times to facilitate light harvesting. This work exhibits the important significance in constructing photoelectrodes for photoelectrochemical water splitting and other photoelectric devices. |
Starting Page | 1532 |
Ending Page | 1538 |
Page Count | 7 |
File Format | |
ISSN | 03615235 |
Journal | Journal of Electronic Materials |
Volume Number | 46 |
Issue Number | 3 |
e-ISSN | 1543186X |
Language | English |
Publisher | Springer US |
Publisher Date | 2016-12-20 |
Publisher Place | New York |
Access Restriction | Subscribed |
Subject Keyword | Nanostructure hemisphere pits nanowires ZnO CdS photoelectrochemical water splitting Optical and Electronic Materials Characterization and Evaluation of Materials Electronics and Microelectronics, Instrumentation Solid State Physics |
Content Type | Text |
Resource Type | Article |
Subject | Condensed Matter Physics Electronic, Optical and Magnetic Materials Materials Chemistry Electrical and Electronic Engineering |
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