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发明公开
CN104303318A 具有带阻滤光器的光伏器件 有权

具有带阻滤光器的光伏器件
摘要：
公开了一种光伏器件(10a-e)，包括：作为非晶半导体材料的光吸收材料(34、35)；以及具有给定阻带的带阻滤光器结构(20)，相对于光吸收材料设置结构以衰减到达光吸收材料并且具有在阻带内角频率ω*的电磁辐射，其中阻带对应于从非晶材料的价带尾(VBT)状态至非晶材料的导带尾(CBT)状态的电子激发
摘要（英）：

A photovoltaic device (10a-e) is disclosed, comprising: a light absorbing material (34, 35) being an amorphous semiconductor material; and a band-stop filter structure (20) with a given stopband, the structure arranged with respect to the light absorbing material to attenuate electromagnetic radiation reaching the light absorbing material and having angular frequencies omega * within the stopband, wherein the stopband corresponds to electronic excitations h omega * from valence band tail (VBT) states of the amorphous material to conduction band tail (CBT) states of the amorphous material.

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