SiN x /Cu Spectral Beam Splitting Films for Hybrid Photovoltaic and Concentrating Solar Thermal Systems.

Autor: Zhang X; Key Laboratory of Concentrating Solar Thermal Energy and Photovoltaic System, Chinese Academy of Sciences, Beijing 100190, China.; Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing 100190, China.; University of Chinese Academy of Sciences, Beijing 100049, China.; Beijing Engineering Research Center of Concentrating Solar Thermal Power, Beijing 100190, China., Lei D; Key Laboratory of Concentrating Solar Thermal Energy and Photovoltaic System, Chinese Academy of Sciences, Beijing 100190, China.; Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing 100190, China.; University of Chinese Academy of Sciences, Beijing 100049, China.; Beijing Engineering Research Center of Concentrating Solar Thermal Power, Beijing 100190, China., Zhang B; North University of China, Taiyuan, Shanxi 030051, China., Yao P; Key Laboratory of Concentrating Solar Thermal Energy and Photovoltaic System, Chinese Academy of Sciences, Beijing 100190, China.; Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing 100190, China.; University of Chinese Academy of Sciences, Beijing 100049, China.; Beijing Engineering Research Center of Concentrating Solar Thermal Power, Beijing 100190, China., Wang Z; Key Laboratory of Concentrating Solar Thermal Energy and Photovoltaic System, Chinese Academy of Sciences, Beijing 100190, China.; Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing 100190, China.; University of Chinese Academy of Sciences, Beijing 100049, China.; Beijing Engineering Research Center of Concentrating Solar Thermal Power, Beijing 100190, China.
Jazyk: angličtina
Zdroj: ACS omega [ACS Omega] 2021 Aug 15; Vol. 6 (33), pp. 21709-21718. Date of Electronic Publication: 2021 Aug 15 (Print Publication: 2021).
DOI: 10.1021/acsomega.1c03178
Abstrakt: Spectral beam splitting (SBS) films are crucial for the development of hybrid systems based on photovoltaic (PV) and concentrating solar thermal (CST) technologies. In this study, a novel double-layer SiN x /Cu SBS film was prepared via magnetron sputtering. This film was developed based on the linear Fresnel solar thermal technology used in PV/CST hybrid systems. The as-deposited film exhibited superior SBS properties, with a high transmittance of 72.9% and a reflectance of 89.7%. To optimize the optical properties, the thicknesses of the metal and SiN x layers were precisely controlled. The optimal thicknesses of the Cu and SiN x layers were determined to be 17 and 67 nm, respectively. Furthermore, the thermal stability of the SBS film was evaluated. When annealed at 50 °C, the surface of the SBS film became more uniform and smooth, and with increasing annealing time, the film became denser. No strong diffraction peaks of Cu were observed in the X-ray diffraction patterns because of the low content and poor crystallization of Cu. Atomic force microscopy investigations revealed the formation of a textured surface and a decrease in the root-mean-square roughness with an increase in the annealing time from 0 to 360 h. As a key component with considerable application potential in PV/CST hybrid systems, SBS films are currently an important research topic.
Competing Interests: The authors declare no competing financial interest.
(© 2021 The Authors. Published by American Chemical Society.)
Databáze: MEDLINE
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