Chemical vapor deposition of low reflective cobalt (II) oxide films

被引：14

作者：

Amin-Chalhoub, Eliane ^{[1
]}

Duguet, Thomas ^{[1
]}

Samelor, Diane ^{[1
]}

Debieu, Olivier ^{[1
]}

Ungureanu, Elisabeta ^{[1
]}

Vahlas, Constantin ^{[1
]}

机构：

[1] CNRS Univ Toulouse, CIRIMAT, F-31030 Toulouse 4, France

来源：

APPLIED SURFACE SCIENCE | 2016年 / 360卷

关键词：

Optical reflectivity; MOCVD; Refractive index gradient; CoO; Cobalt oxide; THIN-FILMS; OPTICAL-PROPERTIES; BLACK COBALT; COATINGS; CO; GROWTH; LAYER; MICROSTRUCTURE; TEMPERATURE; PARAMETERS;

D O I：

10.1016/j.apsusc.2015.10.188

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Low reflective CoO coatings are processed by chemical vapor deposition from Co-2(CO)(8) at temperatures between 120 degrees C and 190 degrees C without additional oxygen source. The optical reflectivity in the visible and near infrared regions stems from 2 to 35% depending on deposition temperature. The combination of specific microstructural features of the coatings, namely a fractal "cauliflower" morphology and a grain size distribution more or less covering the near UV and IR wavelength ranges enhance light scattering and gives rise to a low reflectivity. In addition, the columnar morphology results in a density gradient in the vertical direction that we interpret as a refractive index gradient lowering reflectivity further down. The coating formed at 180 degrees C shows the lowest average reflectivity (2.9%), and presents an interesting deep black diffuse aspect. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：540 / 546

页数：7

共 55 条

[1] Developments in the synthesis of flat plate solar selective absorber materials via sol-gel methods: A review [J].

Amri, Amun ;

Jiang, Zhong Tao ;

Pryor, Trevor ;

Yin, Chun-Yang ;

Djordjevic, Sinisa .

RENEWABLE & SUSTAINABLE ENERGY REVIEWS, 2014, 36 :316-328

[2]

[Anonymous], 2002, REV MIDHIGHTEMPERATU, DOI DOI 10.2172/15000706

[3] Synthesis and optical properties of two cobalt oxides (CoO and Co3O4) nanofibers produced by electrospinning process [J].

Barakat, Nasser A. M. ;

Khil, Myung Seob ;

Sheikh, Faheem A. ;

Kim, Hak Yong .

JOURNAL OF PHYSICAL CHEMISTRY C, 2008, 112 (32) :12225-12233

[4] Synthesis of black cobalt and tin oxide films by the sol-gel process: surface and optical properties [J].

Barrera, E ;

Huerta, L ;

Muhl, S ;

Avila, A .

SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2005, 88 (02) :179-186

[5] A new cobalt oxide electrodeposit bath for solar absorbers [J].

Barrera, E ;

Gonzalez, I ;

Viveros, T .

SOLAR ENERGY MATERIALS AND SOLAR CELLS, 1998, 51 (01) :69-82

[6]

Bass M, 2010, HDB OF OPTICS, VIV

[7] Tailoring photonic metamaterial resonances for thermal radiation [J].

Bermel, Peter ;

Ghebrebrhan, Michael ;

Harradon, Michael ;

Yeng, Yi Xiang ;

Celanovic, Ivan ;

Joannopoulos, John D. ;

Soljacic, Marin .

NANOSCALE RESEARCH LETTERS, 2011, 6 :1-5

[8] MATERIALS FOR PHOTOTHERMAL SOLAR-ENERGY CONVERSION [J].

BOGAERTS, WF ;

LAMPERT, CM .

JOURNAL OF MATERIALS SCIENCE, 1983, 18 (10) :2847-2875

[9] CO3O4 protective coatings prepared by Pulsed Injection Metal Organic Chemical Vapour Deposition [J].

Burriel, M ;

García, G ;

Santiso, J ;

Hansson, AN ;

Linderoth, S ;

Figueras, A .

THIN SOLID FILMS, 2005, 473 (01) :98-103

[10] Catkin liked nano-Co3O4 catalyst built-in organic microreactor by PEMOCVD method for trace CO oxidation at room temperature [J].

Chen, G. L. ;

Guyon, C. ;

Zhang, Z. X. ;

Da Silva, B. ;

Da Costa, P. ;

Ognier, S. ;

Bonn, D. ;

Tatoulian, M. .

MICROFLUIDICS AND NANOFLUIDICS, 2014, 16 (1-2) :141-148

← 1 2 3 4 5 6 →