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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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초록· 키워드
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Nb, Mo-doped and Nb/Mo-codoped VO₂(M) nanocrystallites with various doping levels were synthesized for the first time by a hydrothermal and post thermal transformation method. The reversible phase transition characteristics of those doped VO₂(M) was comparatively investigated. Nb-doping of VO₂(M) by this method resulted in a very efficient lowering of the transition temperature (Tc) with a rate of -16.7 oC/at.% that is comparable to W-doping, while Mo-doping did not give a serious reduction of Tc with only a rate of -5.1 ℃/at.%. Nb/Mo-codoping gave a similar result to Nb-doping without a noticeable difference. The thin films of Nb-doped and Nb/Mo-codoped VO₂(M) with a thickness of ca. 120 nm were prepared by a wet-coating of the nanoparticle-dispersed solutions. Those films showed a good thermochromic modulation of near infrared radiation with 30-35% for Nb-doped VO₂(M) and 37-40% for Nb/Mo-codoped ones. Nb/Mo-codoped VO₂(M) film showed slightly enhanced thermochromic performance compared with Nb-doped VO₂(M) film.
목차
ABSTRACT
INTRODUCTION
EXPERIMENTAL
RESULTS AND DISCUSSION
CONCLUSION
REFERENCES
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