Chemical vapour transport synthesis and optical characterization of MoO3 thin films

被引：43

作者：

Lee, Young Jung ^{[1
]}

Nichols, William T. ^{[1
]}

Kim, Dae-Gun ^{[1
]}

Do Kim, Young ^{[1
]}

机构：

[1] Hanyang Univ, Div Mat Sci & Engn, Seoul 133791, South Korea

来源：

JOURNAL OF PHYSICS D-APPLIED PHYSICS | 2009年 / 42卷 / 11期

关键词：

MOLYBDENUM OXIDE-FILMS; VISIBLE-LIGHT; PHOTOCHROMISM; CVD; ELECTROCHROMISM;

D O I：

10.1088/0022-3727/42/11/115419

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

MoO3 thin films were successfully prepared through chemical vapour transport (CVT) deposition and post-annealing. These films showed significantly improved optical properties. It was found that the transmittance reaches 80% with low reflectivity due to improved crystallinity and removal of oxygen vacancy states. Optical analysis shows that the index of refraction is around 1.55 with a flat dispersion curve across the visible. Furthermore, the band-gap energy is estimated to be approximately 3.5 eV. These properties suggest that CVT may be an effective thin film deposition technique for low-cost, large-area deposition of molybdenum oxides for chromogenic applications.

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页数：5

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