发明授权
- 专利标题： Electron donating material, material for photovoltaic devices and photovoltaic device
- 专利标题（中）： 供电材料，光伏器件材料和光电器件
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申请号： US12936061申请日： 2009-03-13
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公开(公告)号： US08558108B2公开(公告)日： 2013-10-15
- 发明人: Daisuke Kitazawa , Shuhei Yamamoto , Jun Tsukamoto
- 申请人： Daisuke Kitazawa , Shuhei Yamamoto , Jun Tsukamoto
- 申请人地址： JP
- 专利权人： Toray Industries, Inc.
- 当前专利权人： Toray Industries, Inc.
- 当前专利权人地址： JP
- 代理机构： DLA Piper LLP (US)
- 优先权： JP2008-103205 20080411; JP2008-271688 20081022
- 国际申请： PCT/JP2009/054836 WO 20090313
- 国际公布： WO2009/125647 WO 20091015
- 主分类号： H01L31/00
- IPC分类号： H01L31/00 ; C08G75/32
摘要：
An electron donating organic material includes a benzothiadiazole compound including (a) a benzothiadiazole skeleton and (b) an oligothiophene skeleton, and having a band gap (Eg) of 1.8 eV or less, and a level of highest occupied molecular orbital (HOMO) of −4.8 eV or less, wherein said benzothiadiazole compound is formed by covalently combining the benzothiadiazole skeleton and the oligothiophene skeleton alternately, a proportion between the benzothiadiazole skeleton and the oligothiophene skeleton is within a range of 1:1 to 1:2 (however, excluding 1:1), and the number of thiophene rings contained in an oligothiophene skeleton is 3 or more and 12 or less.
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