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Title:
PHOTOACTIVE COMPONENT COMPRISING ORGANIC LAYERS
Document Type and Number:
WIPO Patent Application WO2004083958
Kind Code:
A3
Abstract:
The invention relates to a photoactive component, especially a solar cell, consisting of organic layers and formed by at least one stacked pi, ni, and/or pin diode. Said diodes are characterised in that they comprise at least one p-doped or n-doped transport layer having a larger optical band gap than that of the photoactive layer. The individual diodes are characterised by a high internal quantum yield, but can be optically thin (peak absorption < 80%). According to the invention, a high external quantum yield is obtained by either enlarging the optical path of the incident light in the diodes using light traps, or by stacking a plurality of said diodes, the transition between two diodes being facilitated by transition layers for the purposes of improved recombination and generation. Both forms of embodiment have a number of specific advantages using the doped transport layers with a large band gap.

Inventors:
DRECHSEL JENS (DE)
PFEIFFER MARTIN (DE)
MAENNIG BERT (DE)
LEO KARL (DE)
Application Number:
PCT/DE2004/000574
Publication Date:
November 10, 2005
Filing Date:
March 19, 2004
Export Citation:
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Assignee:
UNIV DRESDEN TECH (DE)
DRECHSEL JENS (DE)
PFEIFFER MARTIN (DE)
MAENNIG BERT (DE)
LEO KARL (DE)
International Classes:
G03F1/00; H01L27/30; H01L31/00; H01L31/101; H01L51/30; H01L51/00; (IPC1-7): H01L51/20; H01L51/30
Domestic Patent References:
WO2000033396A12000-06-08
WO1999049525A11999-09-30
Foreign References:
US6278055B12001-08-21
Other References:
PFEIFFER M ET AL: "Controlled p-doping of pigment layers by cosublimation: Basic mechanisms and implications for their use in organic photovoltaic cells", SOLAR ENERGY MATERIALS AND SOLAR CELLS, ELSEVIER SCIENCE PUBLISHERS, AMSTERDAM, NL, vol. 63, no. 1, June 2000 (2000-06-01), pages 83 - 99, XP004201249, ISSN: 0927-0248
MEISSNER D ET AL .: "HIGHLY EFFICIENT MOLECULAR ORGANIC SOLAR CELLS", 16TH. E.C. PHOTOVOLTAIC SOLAR ENERGY CONFERENCE. GLASCOW, UNITED KINGDOM, MAY 1 - 5, 2000, PROCEEDINGS OF THE INTERNATIONAL PHOTOVOLTAIC SOLAR ENERGY CONFERENCE, LONDON : JAMES & JAMES LTD, GB, vol. VOL. 1 OF 3. CONF. 16, 1 May 2000 (2000-05-01), pages 10 - 14, XP001138231, ISBN: 1-902916-18-2
YAKIMOV A ET AL: "High photovoltage multiple-heterojunction organic solar cells incorporating interfacial metallic nanoclusters", APPLIED PHYSICS LETTERS, AMERICAN INSTITUTE OF PHYSICS. NEW YORK, US, vol. 80, no. 9, 4 March 2002 (2002-03-04), pages 1667 - 1669, XP012031741, ISSN: 0003-6951
STOLZ ROMAN L ET AL: "TRAPPING LIGHT IN POLYMER PHOTODIODES WITH SOFT EMBOSSED GRATINGS", ADVANCED MATERIALS, VCH VERLAGSGESELLSCHAFT, WEINHEIM, DE, vol. 12, no. 3, 3 February 2000 (2000-02-03), pages 189 - 195, XP000923550, ISSN: 0935-9648
LANE P A ET AL: "Electroabsorption studies of phthalocyanine/perylene solar cells", SOLAR ENERGY MATERIALS AND SOLAR CELLS, ELSEVIER SCIENCE PUBLISHERS, AMSTERDAM, NL, vol. 63, no. 1, June 2000 (2000-06-01), pages 3 - 13, XP004201242, ISSN: 0927-0248
HUANG JINGSONG ET AL: "Low-voltage organic electroluminescent devices using pin structures", APPLIED PHYSICS LETTERS, AMERICAN INSTITUTE OF PHYSICS. NEW YORK, US, vol. 80, no. 1, 7 January 2002 (2002-01-07), pages 139 - 141, XP012030202, ISSN: 0003-6951
GEBEYEHU D ET AL: "Bulk-heterojunction photovoltaic devices based on donor-acceptor organic small molecule blends", SOLAR ENERGY MATERIALS AND SOLAR CELLS, ELSEVIER SCIENCE PUBLISHERS, AMSTERDAM, NL, vol. 79, no. 1, August 2003 (2003-08-01), pages 81 - 92, XP004446739, ISSN: 0927-0248
DRECHSEL J ET AL: "High efficiency organic solar cells based on single or multiple PIN structures", PREPARATION AND CHARACTERIZATION, ELSEVIER SEQUOIA, NL, vol. 451-452, 22 March 2004 (2004-03-22), pages 515 - 517, XP004495157, ISSN: 0040-6090, Retrieved from the Internet [retrieved on 20050825]
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