Selective emitters for thermophotovoltaics: erbia-modified electrospun titania nanofibers

被引：65

作者：

Tomer, V

Teye-Mensah, R

Tokash, JC

Stojilovic, N

Kataphinan, W

Evans, EA

Chase, GG

Ramsier, RD

Smith, DJ

Reneker, DH

机构：

[1] Univ Akron, Dept Phys, Akron, OH 44325 USA

[2] Univ Akron, Dept Chem, Akron, OH 44325 USA

[3] Univ Akron, Maurice Morton Inst Polymer Sci, Akron, OH 44325 USA

[4] Univ Akron, Dept Chem Engn, Akron, OH 44325 USA

来源：

SOLAR ENERGY MATERIALS AND SOLAR CELLS | 2005年 / 85卷 / 04期

基金：

美国国家科学基金会;

关键词：

thermophotovoltaics; selective emitters; nanofibers; electrospinning; titania; erbia;

D O I：

10.1016/j.solmat.2004.04.019

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Titania nanofibers were synthesized by electrospinning and characterized with scanning electron microscopy, X-ray diffraction, and X-ray photoelectron spectroscopy. The nanofibers were annealed to 773 K to achieve the anatase titania crystal structure. and to 1173 K to obtain the rutile phase. In order to create erbia-containing titania nanofibers. erbium (III) oxide particles were added to the pre-cursor solution before electrospinning. After pyrolysis the titania nanofibers supported and encapsulated the erbia particles. Temperature-dependent near-infrared emission spectra demonstrate that the erbia-containing nanofibers emit selectively in the range 6000-7000 cm(-1). Because of their large surface to volume ratios and narrow-band optical emission, these nanofibers can be used as selective emitters for thermophotovoltaic applications. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：477 / 488

页数：12

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