title: High efficiency of photon-to-heat conversion with a 6-layered metal/dielectric film structure in the 250-1200 nm wavelength region.
abstract: The optical properties and thermal stability of a 6-layered metal/dielectric film structure are investigated in this work. A high optical absorption average of > 98% is achieved in the broad spectral range of 250-1200 nm with experiment results, in good agreement with our simulated results. The samples have a typical layered structure of: SiO(2)(57.3 nm)/Ti(5.7 nm)/SiO(2) (67.1 nm)/Ti(11.6 nm)/SiO(2)(51.4 nm)/Cu(>100 nm), deposited on optically polished Si or K9-glass substrates by magnetron sputtering. The sample of the 6-layered metal/dielectric film structure has an AM1.5G solar absorptance of 95.5% with the features of low thermal emittance of 0.136 at 700K and good thermal stability, and will be potentially suitable for practical application in high-efficiency solar absorber devices in many fields.
authors.forename: Ming-Hui
authors.initials: MH
authors.lastname: Liu
authors.forename: Er-Tao
authors.initials: ET
authors.lastname: Hu
authors.forename: Yuan
authors.initials: Y
authors.lastname: Yao
authors.forename: Kai-Yan
authors.initials: KY
authors.lastname: Zang
authors.forename: Ning
authors.initials: N
authors.lastname: He
authors.forename: Jing
authors.initials: J
authors.lastname: Li
authors.forename: Yu-Xiang
authors.initials: YX
authors.lastname: Zheng
authors.forename: Song-You
authors.initials: SY
authors.lastname: Wang
authors.forename: Osamu
authors.initials: O
authors.lastname: Yoshie
authors.forename: YangPak
authors.initials: Y
authors.lastname: Lee
authors.forename: Cai-Zhuang
authors.initials: CZ
authors.lastname: Wang
authors.forename: D W
authors.initials: DW
authors.lastname: Lynch
authors.forename: Liang-Yao
authors.initials: LY
authors.lastname: Chen