Inverted polymer solar cell and manufacture method thereof

一种倒置聚合物太阳能电池及其制备方法

Abstract

本发明公开了一种倒置聚合物太阳能电池,依次包括阴极、电子缓冲层、活性层、空穴缓冲层和阳极,所述空穴缓冲层的材质为酞菁类小分子,所述酞菁类小分子为酞菁铜、酞菁锌、酞菁钒或酞菁镁。本发明还公开了该倒置聚合物太阳能电池的制备方法,包括以下步骤:(1)提供所需尺寸的阴极;(2)蒸镀电子缓冲层,然后旋涂活性层;(3)将酞菁类小分子溶液旋涂在活性层上,烘干形成空穴缓冲层;(4)蒸镀阳极,得到倒置聚合物太阳能电池。本发明采用倒置结构,以酞菁类小分子作为空穴缓冲层,利用酞菁类小分子形成晶体的散射与反射作用,使太阳光回到活性层再度被利用,从而改善了太阳能电池的光电转换效率。
The invention discloses an inverted polymer solar cell. The inverted polymer solar cell sequentially comprises a cathode, an electron buffer layer, an active layer, a hole buffer layer and an anode, wherein the hole buffer layer is made of phthalocyanine small molecules, such as copper phthalocyanine, vanadium phthalocyanine, or magnesium phthalocyanine. The invention also discloses a manufacture method of the inverted polymer solar cell. The manufacture method comprises the following step: (1) providing a cathode with a desired size; (2) evaporating the electron buffer layer, and spin-coating the active layer; (3) spin-coating the active layer with a solution containing phthalocyanine small molecules, and drying to form the hole buffer layer; (4) evaporating the anode to obtain the inverted polymer solar cell. The inverted polymer solar cell provided by the invention can reflect sunlight back to the active layer to realize sunlight reutilization based on the scattering and reflection effects of crystals formed by the phthalocyanine small molecules by adopting the inverted structure and using the phthalocyanine small molecules as the hole buffer layer, thereby improving the photoelectric conversion efficiency of the solar cell.

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    Publication numberPublication dateAssigneeTitle
    CN-104241530-ADecember 24, 2014电子科技大学Organic thin-film solar cell on basis of water-soluble copolymers
    CN-105280826-AJanuary 27, 2016苏州瑞晟纳米科技有限公司一种双电子传输层的新型聚合物太阳能电池