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    • 10. 发明授权
    • Thermally-sprayed composite selective emitter
    • 热喷涂复合选择性发射极
    • US06379789B1
    • 2002-04-30
    • US09678904
    • 2000-10-04
    • Christopher J. CrowleyNabil A. ElkouhPatrick J. Magari
    • Christopher J. CrowleyNabil A. ElkouhPatrick J. Magari
    • B32B1800
    • C04B41/009C04B41/5045C04B41/52C04B41/87C04B41/89H02S10/30Y10T428/265C04B41/4527C04B41/5046C04B41/522C04B41/4529C04B41/4574C04B41/5122C04B35/10C04B35/565C04B35/505
    • A composite emitter (100) for a thermophotovoltaic cell and other applications, and a method of forming the composite emitter. The composite emitter includes a substrate (102) and a selective emitter layer (104) composed of at least one substantially pure ceramic oxide selective emitter material applied to the substrate using a thermal spraying method. The substrate is preferably made of a durable material such as a silicon-based material or a refractory metal oxide. In one embodiment, the selective emitter layer may be composed of two or more selective emitter materials. In another embodiment, the composite emitter may further include a reflective metal layer (106). The method includes providing a substrate and plasma spraying one or more selective emitter materials onto the substrate to a thickness of between about 10 microns and about 400 microns to form the selective emitter layer. Preferably, the selective emitter layer has an in situ density of between 80% and 95% of the bulk density of the selective emitter material used.
    • 用于热光伏电池的复合发射器(100)和其它应用,以及形成复合发射极的方法。 复合发射器包括基板(102)和选择性发射极层(104),其由至少一个基本上纯的陶瓷氧化物选择性发射体材料构成,该材料使用热喷涂法施加到基板。 衬底优选由诸如硅基材料或难熔金属氧化物的耐用材料制成。 在一个实施例中,选择性发射极层可以由两个或更多个选择性发射极材料组成。 在另一个实施例中,复合发射器还可以包括反射金属层(106)。 该方法包括提供衬底和等离子体将一种或多种选择性发射体材料喷射到衬底上至约10微米至约400微米的厚度以形成选择性发射极层。 优选地,选择性发射极层的原位密度为所使用的选择性发射极材料的体积密度的80%至95%。