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Optical Properties of V2O5 Thin Films on Different Substrates and Femtosecond Laser-Induced Phase Transition Studied by Pump-Probe Method
Lan, Yu1,2; Yang, Guowen1,2; Li, Yangping3; Wang, Yuheng4; Shi, Qianqian5; Cheng, Guanghua5
Department瞬态光学研究室
2022-02-26
Source PublicationNANOMATERIALS
ISSN2079-4991
Volume12Issue:3
Contribution Rank1
Abstract

Vanadium pentoxide can undergo a reversible phase transition by heating above 260 degrees C; its non-thermal phase transition, as well as ultrafast dynamical processes, is still not known. Here, femtosecond laser-induced phase transition properties in V2O5 thin films were first explored using femtosecond time-resolved pump-probe spectroscopy. The results show that the phase transient processes occur on a 10(-15)-10(-13) temporal scale. The phase transition and recovery properties are dependent on both the substrates and pump laser energy densities. We propose the oxygen vacancies theory to explain the results, and we provide valuable insights into V2O5 films for potential applications.

Keywordvanadium pentoxide thin film ultrafast pump-probe
DOI10.3390/nano12030330
Indexed BySCI
Language英语
WOS IDWOS:000755644500001
Citation statistics
Document Type期刊论文
Identifierhttp://ir.opt.ac.cn/handle/181661/95717
Collection瞬态光学研究室
Corresponding AuthorCheng, Guanghua
Affiliation1.Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Xian 710119, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Northwestern Polytech Univ, Sch Mat Sci & Engn, State Key Lab Solidificat Proc, Xian 710072, Peoples R China
4.South China Univ Technol, Res Ctr Semicond Lighting & Informat Engn Technol, Guangzhou 510641, Peoples R China
5.Northwestern Polytech Univ, Sch Artificial Intelligence Opt & Elect iOPEN, Sch Elect & Informat, Xian 710012, Peoples R China
Recommended Citation
GB/T 7714
Lan, Yu,Yang, Guowen,Li, Yangping,et al. Optical Properties of V2O5 Thin Films on Different Substrates and Femtosecond Laser-Induced Phase Transition Studied by Pump-Probe Method[J]. NANOMATERIALS,2022,12(3).
APA Lan, Yu,Yang, Guowen,Li, Yangping,Wang, Yuheng,Shi, Qianqian,&Cheng, Guanghua.(2022).Optical Properties of V2O5 Thin Films on Different Substrates and Femtosecond Laser-Induced Phase Transition Studied by Pump-Probe Method.NANOMATERIALS,12(3).
MLA Lan, Yu,et al."Optical Properties of V2O5 Thin Films on Different Substrates and Femtosecond Laser-Induced Phase Transition Studied by Pump-Probe Method".NANOMATERIALS 12.3(2022).
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