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Wavelength selective radiator for thermophotovoltaic system and preparation method thereof
The invention belongs to the technical field of wavelength selective radiators, and particularly relates to a wavelength selective radiator for a thermophotovoltaic system and a preparation method thereof.The wavelength selective radiator is of a blocky ceramic structure, the side, close to a photocell, of the blocky ceramic structure is subjected to mirror polishing, and the side, close to a heat source, of the blocky ceramic structure is subjected to frosted treatment; and after Er2O3 and excessive Al2O3 powder are respectively weighed according to the stoichiometric ratio of Er3Al5O12, the selective radiator is prepared by mixing, powdering, blank making, glue discharging, sintering, annealing and grinding. The wavelength selective radiator for the thermophotovoltaic system has relatively high directional transparency, can integrally output available effective photons, realizes integral material thermal excitation emission with millimeter-scale thickness, has high space volume utilization rate and radiation efficiency, has a compact and fine microstructure, and can be widely applied to the field of thermophotovoltaic systems. Integrity and thermal stability are good, and the long-term high-temperature use requirement is met.
本发明属于波长选择性辐射体技术领域，具体涉及一种热光伏系统用波长选择性辐射体及其制备方法，其中，所述选择性辐射体为临近光电池一侧镜面抛光、临近热源一侧磨砂处理的块状陶瓷结构；且选择性辐射体按化学计量比Er3Al5O12分别称量Er2O3及过量的Al2O3粉体后，经混合、制粉、制坯、排胶、烧结、退火、研磨后制备而成。本发明的热光伏系统用波长选择性辐射体，具有较高的定向透明度，整体均可输出可被利用的有效光子，实现毫米级厚度的整体材料热激发发射，辐射体的空间体积利用率和辐射效率高，而且块状陶瓷器件具有致密精细的微观结构，完整性与热稳定良好，满足长期高温使用需求。
Wavelength selective radiator for thermophotovoltaic system and preparation method thereof
The invention belongs to the technical field of wavelength selective radiators, and particularly relates to a wavelength selective radiator for a thermophotovoltaic system and a preparation method thereof.The wavelength selective radiator is of a blocky ceramic structure, the side, close to a photocell, of the blocky ceramic structure is subjected to mirror polishing, and the side, close to a heat source, of the blocky ceramic structure is subjected to frosted treatment; and after Er2O3 and excessive Al2O3 powder are respectively weighed according to the stoichiometric ratio of Er3Al5O12, the selective radiator is prepared by mixing, powdering, blank making, glue discharging, sintering, annealing and grinding. The wavelength selective radiator for the thermophotovoltaic system has relatively high directional transparency, can integrally output available effective photons, realizes integral material thermal excitation emission with millimeter-scale thickness, has high space volume utilization rate and radiation efficiency, has a compact and fine microstructure, and can be widely applied to the field of thermophotovoltaic systems. Integrity and thermal stability are good, and the long-term high-temperature use requirement is met.
本发明属于波长选择性辐射体技术领域，具体涉及一种热光伏系统用波长选择性辐射体及其制备方法，其中，所述选择性辐射体为临近光电池一侧镜面抛光、临近热源一侧磨砂处理的块状陶瓷结构；且选择性辐射体按化学计量比Er3Al5O12分别称量Er2O3及过量的Al2O3粉体后，经混合、制粉、制坯、排胶、烧结、退火、研磨后制备而成。本发明的热光伏系统用波长选择性辐射体，具有较高的定向透明度，整体均可输出可被利用的有效光子，实现毫米级厚度的整体材料热激发发射，辐射体的空间体积利用率和辐射效率高，而且块状陶瓷器件具有致密精细的微观结构，完整性与热稳定良好，满足长期高温使用需求。
Wavelength selective radiator for thermophotovoltaic system and preparation method thereof
一种热光伏系统用波长选择性辐射体及其制备方法
XU WENTAO (author) / ZHOU YOUFU (author) / JIN MING (author) / ZHANG ZHENG (author) / LIN WENXIONG (author) / WENG WEN (author)
2023-05-30
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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