A Low-Energy-Gap Organic Dye for High-Performance Small-Molecule Organic Solar Cells
A Low-Energy-Gap Organic Dye for High-Performance Small-Molecule Organic Solar Cells
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DOI：
10.1021/ja205126t
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发表时间：
2011-10-12
影响因子：
15
通讯作者：
Wong, Ken-Tsung
中科院分区：
文献类型：
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作者：
Lin, Li-Yen;Chen, Yi-Hong;Wong, Ken-Tsung
合成并表征了一种新型的给体-受体-受体（D-A-A）给体分子DTDCTB，其中一个给电子的二甲苯氨基噻吩部分和一个吸电子的二氰基乙烯基部分通过另一个受电子的2，1，3-苯并噻二唑嵌段桥接。采用DTDCTB结合电子受体C-70的真空沉积有机太阳能电池实现了5.81%的创纪录的高功率转换效率（PCE）。值得尊敬的PCE归因于延伸到近红外区域的太阳光谱响应和DTDCTB薄膜的超紧凑吸收偶极子堆叠。
A novel donor-acceptor-acceptor (D-A-A) donor molecule, DTDCTB, in which an electron-donating ditolylaminothienyl moiety and an electron-withdrawing dicyanovinylene moiety are bridged by another electron-accepting 2,1,3-benzothiadiazole block, has been synthesized and characterized. A vacuum-deposited organic solar cell employing DTDCTB combined with the electron acceptor C-70 achieved a record-high power conversion efficiency (PCE) of 5.81%. The respectable PCE is attributed to the solar spectral response extending to the near-IR region and the ultracompact absorption dipole stacking of the DTDCTB thin film.