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Surface-plasmon mediated photoluminescence enhancement of Pt-coated ZnO nanowires by inserting an atomic-layer-deposited Al2O3 spacer layer
Ren, QH; Zhang, Y; Lu, HL; Chen, HY; Zhang, Y; Li, DH; Liu, WJ; Ding, SJ; Jiang, AQ; Zhang, DW; Zhang, DW (reprint author), Fudan Univ, Sch Microelect, Inst Adv Nanodevices, State Key Lab ASIC & Syst, Shanghai 200433, Peoples R China.; Lu, HL (reprint author), Univ Elect Sci & Technol China, State Key Lab Elect Thin Films & Integrated Devic, Chengdu 610054, Peoples R China.
2016
Source PublicationNANOTECHNOLOGY
ISSN0957-4484
Volume27Issue:16Pages:
Subtype期刊文献
AbstractSurface-plasmon mediated photoluminescence emission enhancement has been investigated for ZnO nanowire (NW)/Pt nanoparticle (NP) nanostructures by inserting an Al2O3 spacer layer. The thickness of the Al2O3 spacer layer and of the Pt NPs capped on the ZnO NWs are well controlled by atomic layer deposition. It is found that the photoluminescence property of the ZnO NW/Al2O3/Pt hybrid structure is highly tunable with respect to the thickness of the inserted Al2O3 spacer layer. The highest enhancement (similar to 14 times) of the near band emission of ZnO NWs is obtained with an optimized Al2O3 spacer layer thickness of 10 nm leading to a ultraviolet-visible emission ratio of 271.2 compared to 18.8 for bare ZnO NWs. The enhancement of emission is influenced by a Forster-type non-radiative energy transfer process of the exciton energy from ZnO NWs to Pt NPs as well as the coupling effect between excitons of ZnO NWs and surface plasmons of Pt NPs. The highly versatile and tunable photoluminescence properties of Pt-coated ZnO NWs achieved by introducing an Al2O3 spacer layer demonstrate their potential application in highly efficient optoelectronic devices.
KeywordLight-emitting-diodes Charge-transfer Solar-cells Thin-films Emission Nanorods Single Nanostructures Nanoparticles Arrays
DOI10.1088/0957-4484/27/16/165705
Indexed BySCI
Language英语
WOS IDWOS:000371774100020
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/25854
Collection中科院上海应用物理研究所2011-2018年
Corresponding AuthorLu, HL; Zhang, DW (reprint author), Fudan Univ, Sch Microelect, Inst Adv Nanodevices, State Key Lab ASIC & Syst, Shanghai 200433, Peoples R China.; Lu, HL (reprint author), Univ Elect Sci & Technol China, State Key Lab Elect Thin Films & Integrated Devic, Chengdu 610054, Peoples R China.
Recommended Citation
GB/T 7714
Ren, QH,Zhang, Y,Lu, HL,et al. Surface-plasmon mediated photoluminescence enhancement of Pt-coated ZnO nanowires by inserting an atomic-layer-deposited Al2O3 spacer layer[J]. NANOTECHNOLOGY,2016,27(16):—.
APA Ren, QH.,Zhang, Y.,Lu, HL.,Chen, HY.,Zhang, Y.,...&Lu, HL .(2016).Surface-plasmon mediated photoluminescence enhancement of Pt-coated ZnO nanowires by inserting an atomic-layer-deposited Al2O3 spacer layer.NANOTECHNOLOGY,27(16),—.
MLA Ren, QH,et al."Surface-plasmon mediated photoluminescence enhancement of Pt-coated ZnO nanowires by inserting an atomic-layer-deposited Al2O3 spacer layer".NANOTECHNOLOGY 27.16(2016):—.
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