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    PHOTOAKTIVES BAUELEMENT MIT ORGANISCHEN SCHICHTEN
    3.
    发明公开
    PHOTOAKTIVES BAUELEMENT MIT ORGANISCHEN SCHICHTEN 审中-公开
    与有机层光活性组分

    公开(公告)号：EP1859494A1

    公开(公告)日：2007-11-28

    申请号：EP06722568.0

    申请日：2006-03-03

    申请人： Technische Universität Dresden ,  Universitaet Ulm

    发明人： PFEIFFER, Martin ,  SCHÜPPEL, Rico ,  UHRICH, Christian ,  PETRICH, Annette ,  LEO, Karl ,  BÄUERLE, Peter ,  KILICKIRAN, Pinar ,  BRIER, Eduard

    IPC分类号： H01L51/42 ,  H01L51/46

    CPC分类号： H01L51/4246 ,  B82Y10/00 ,  H01L51/0036 ,  H01L51/0046 ,  H01L51/0047 ,  H01L51/0048 ,  H01L51/0053 ,  H01L51/0077 ,  H01L51/0078 ,  H01L51/0085 ,  H01L51/4253 ,  Y02E10/549

    摘要： The invention relates to a photoactive component comprising organic layers, in particular, solar cells, comprising a layer which comprises an electrode and a counter-electrode in addition to a sequence of organic layers which is arranged between the electrode and the counter-electrode. Photoactive areas are formed in two adjacent layers, that is, an electron harvesting layer (EHL - “Electron Harvesting Layer” ) and an electron separating layer (ESL - “Electron Separating Layer” ) in one of the sequences of organic layers. The electron harvesting layer (EHL) is a mixed layer which contains an organic material (A) and at least one additional organic material (B), wherein: (i) the lowest singlet-excitation state for electrons (S1A ) of the organic material (A) is energetically higher than the lowest singlet-excitation state for electrons (S1B ) of the additional organic material (B), (ii) the additional organic material (B) is formed by means of converting an ISC- mechanism (ISC - “Inter-System-Crossing” ) of singlet electrons on triplet electrons having a quantum yield of at least approximately 20 %, preferably, at least approximately 50 % and (iii) the lowest triplet excitation state for electrons (T1B) of the additional organic material (B) is energetically higher that the lowest triplet-excitation state for electrons (T1A ) of the organic material (A); and in the region of the defining surface, a triplet electron of the organic material (A) is formed in free charge carrier pairs of separating donor-acceptor hetero transitions between the electron harvesting layer (EHL) and the electron separating layer (ESL).