Solar-selective absorbers based on semiconducting β-FeSi₂ for efficient photothermal conversion at high temperature

详细信息    查看全文

• 作者：Yoshiki Okuhara^a ; ^{okuhara@jfcc.or.jp} ; Daisaku Yokoe^a ; Takeharu Kato^a ; Seiichi Suda^a ; ¹ ; Masasuke Takata^a ; Kazuto Noritake^b ; Akinori Sato^c
• 关键词：Heat collector element ; Selective absorber ; Semiconductor ; Silicide ; Optical property
• 刊名：Solar Energy Materials and Solar Cells
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：161
• 期：Complete
• 页码：240-246
• 全文大小：1979 K
• 卷排序：161

文摘

Efficient solar-thermal conversion by semiconducting β-FeSi2 at high temperature. The high efficiency originates from a steep cut-off at the band-edge absorption. Optical constants of β-FeSi2 nanoparticles+SiO2 composites are controllable. Thermally stable silicides in SiO2 matrices suitable for high-temperature operation. Diffusion of Si from silicides to low-emissivity metals should be prevented.