낮은 최고준위점유분자궤도 에너지 준위의 전자 공여체를 사용한 유기 태양전지에서 S형태의 전류-전압 그래프를 극복하기 위한 효과적인 p형 도펀트, 레늄 산화물

    公开(公告)号:KR1020140049807A

    公开(公告)日:2014-04-28

    申请号:KR1020120116068

    申请日:2012-10-18

    CPC classification number: H01L51/42 Y02E10/549 Y02P70/521

    Abstract: Provided is an organic solar cell which comprises: a first electrode; a first hole transport layer which is formed on the first electrode and includes a p-type dopant in a first hole transport material; a second hole transport layer which is formed on the first hole transport layer; a photoactive layer which is formed on the second hole transport layer and includes a donor layer and an acceptor layer; and a second electrode which is formed on the photoactive layer, wherein a highest occupied molecular orbital energy level of the donor layer is -5.6 eV or less, a highest occupied molecular orbital energy level of the second hole transport layer is higher than the highest occupied molecular orbital energy level of the donor layer by 0 or 0.1 eV, and a Fermi level of the p-type dopant is lower than a highest molecular orbital energy level of the first hole transport material.

    Abstract translation: 提供一种有机太阳能电池,其包括:第一电极; 第一空穴传输层,其形成在第一电极上,并且在第一空穴传输材料中包括p型掺杂剂; 形成在第一空穴传输层上的第二空穴传输层; 形成在第二空穴传输层上并包括施主层和受主层的光敏层; 以及形成在光活性层上的第二电极,其中施主层的最高占据分子轨道能级为-5.6eV或更小,第二空穴传输层的最高占据分子轨道能级高于最高占据 施主层的分子轨道能级为0或0.1eV,并且p型掺杂剂的费米能级低于第一空穴传输材料的最高分子轨道能级。

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