Structure and optical properties of carbon-TiO2 composite thin films by sol-gel method as solar selective absorbers

被引：3

作者：

Xiao, Xiudi ^{[1
,2
]}

Zhang, Yuzhi ^{[2
]}

Su, Zhanmin ^{[3
]}

Yu, Yougen ^{[3
]}

Miao, Lei ^{[1
]}

Xu, Gang ^{[1
]}

机构：

[1] Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China

[2] Chinese Acad Sci, Shanghai Inst Ceram, Key Lab Inorgan Coating Mat, Shanghai 200050, Peoples R China

[3] S China Univ Technol, Guangzhou 510641, Guangdong, Peoples R China

来源：

MATERIALS EXPRESS | 2013年 / 3卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Solar Selective Absorbers; C-TiO2 Composite Thin Films; Thermal Stability; RAMAN-SPECTROSCOPY; BLACK CHROME; NANOPARTICLES; OXIDE; ZNO; NIO;

D O I：

10.1166/mex.2013.1129

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

C-TiO2 thin films as low cost solar selective absorbers were prepared by sol-gel method and post-annealing. Differential scanning calorimetry (DSC), Raman spectroscopy, X-ray diffraction (XRD), High-resolution transmission electron microscope (HR-TEM), Field emission scanning electron microscopy (FE-SEM), UV-Vis-NIR spectrophotometer are employed to characterize the structure and optical properties. The results illustrated that C-TiO2 composite thin films can be obtained after spinning and post-annealing. The solar absorptance (alpha) and thermal emissivity (epsilon) vary with carbon content and annealing conditions. The optimal annealing condition is 500 degrees C/2 h and the optimal carbon content is about 0.6 with alpha = 0.87 and epsilon = 0.13. C-TiO2 composite thin films own good thermal stability at 100 degrees C, which proves that it can be a good candidate as low-temperature solar selective absorbers.

引用

页码：301 / 309

页数：9

共 20 条

[1] NICKEL PIGMENTED ANODIC ALUMINUM-OXIDE FOR SELECTIVE ABSORPTION OF SOLAR-ENERGY
ANDERSSON, A
HUNDERI, O
GRANQVIST, CG
[J]. JOURNAL OF APPLIED PHYSICS, 1980, 51 (01) : 754 - 764
[2] [Anonymous], 2002, REV MIDHIGHTEMPERATU, DOI DOI 10.2172/15000706
[3] Phonon confinement effects in the Raman scattering by TiO2 nanocrystals
Bersani, D
Lottici, PP
Ding, XZ
[J]. APPLIED PHYSICS LETTERS, 1998, 72 (01) : 73 - 75
[4] Raman Spectroscopy of nanomaterials: How spectra relate to disorder, particle size and mechanical properties
Gouadec, Gwenael
Colomban, Philippe
[J]. PROGRESS IN CRYSTAL GROWTH AND CHARACTERIZATION OF MATERIALS, 2007, 53 (01) : 1 - 56
[5] Kadirgan F, 1999, TURK J CHEM, V23, P381
[6] FTIR and Raman Spectroscopy of Carbon Nanoparticles in SiO2, ZnO and NiO Matrices
Katumba, G.
Mwakikunga, B. W.
Mothibinyane, T. R.
[J]. NANOSCALE RESEARCH LETTERS, 2008, 3 (11): : 421 - 426
[7] Optical, thermal and structural characteristics of carbon nanoparticles embedded in ZnO and NiO as selective solar absorbers
Katumba, G.
Olumekor, L.
Forbes, A.
Makiwa, G.
Mwakikunga, B.
Lu, J.
Wackelgard, E.
[J]. SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2008, 92 (10) : 1285 - 1292
[8] MICROSTRUCTURE OF A BLACK CHROME SOLAR SELECTIVE ABSORBER
LAMPERT, CM
WASHBURN, J
[J]. SOLAR ENERGY MATERIALS, 1979, 1 (1-2): : 81 - 92
[9] Fabrication, characterization and Raman study of TiO2 nanowire arrays prepared by anodic oxidative hydrolysis of TiCl3
Lei, Y
Zhang, LD
Fan, JC
[J]. CHEMICAL PHYSICS LETTERS, 2001, 338 (4-6) : 231 - 236
[10] Photocatalytic deposition of gold nanoparticles on electrospun nanofibers of titania
Li, D
McCann, JT
Gratt, M
Xia, YN
[J]. CHEMICAL PHYSICS LETTERS, 2004, 394 (4-6) : 387 - 391

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