STUDY ON ELECTROCHROMIC PERFORMANCES AND MECHANISM OF MICROCRYSTAL NiOxHy THIN FILMS FABRICATED BY R.F.DEPOSITION | Zendy

Feng Bo-xue | Zendy; Xie Liang | Zendy; Jun Wang | Zendy; Jiang Shengrui | Zendy; Guanghua Chen | Zendy

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STUDY ON ELECTROCHROMIC PERFORMANCES AND MECHANISM OF MICROCRYSTAL NiOxHy THIN FILMS FABRICATED BY R.F.DEPOSITION

Author(s) -

Feng Bo-xue,

Xie Liang,

Jun Wang,

Jiang Shengrui,

Guanghua Chen

Publication year - 2000

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.49.2066

Subject(s) - electrochromism , materials science , non blocking i/o , thin film , ion , stoichiometry , analytical chemistry (journal) , nanotechnology , chemistry , catalysis , electrode , organic chemistry

In this article,the electrochromic (EC) properties of R.F.deposited NiOx thin films are investigated.It was found that non-stoichiometric NiOx(x>1) thin films which are rich in O element have EC activation.In NiOx thin films exist both Ni3+ and Ni2+ ions.The insert ion of H+ ions and their sequential occupation of Ni vacation render t2g energy levels of Ni3 ions completely filled.Thus,Ni3+ is reduce to Ni2+ ions and the NiOx films get light transparent.On the contrary,the extraction of H+ ions from NiO x films will produce vacancies in the tg energy levels o f Ni.Ni2+ ions are oxidized to Ni3+ ions,wh ich makes NiOx films absorb light.The film is then colored.

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