两个不同的端基,若丹宁侧接的苯并[ c ] [1,2,5]噻二唑(BR)和2-(5,6-二氟-3-氧代-2,3-二氢-1 H-茚满-1-将亚丙基)丙二腈(IM2F)连接到茚并[1,2- b:5,6- b ']二噻吩(IDT)核,以构建新的非富勒烯受体(IDTBF)。基于该受体的太阳能电池表现出令人鼓舞的光伏性能,功率转换效率(PCE)高达10.43%。
Indacenodithiophene and Indacenodiselenophene Polymers and their Use as Organic Semiconductors
申请人:Tierney Steven
公开号:US20110226999A1
公开(公告)日:2011-09-22
The invention relates to conjugated polymers comprising indacenodithiophene or indacenoselenophene units or derivatives thereof, to methods of their preparation, to novel monomer units used therein, to the use of the polymers in organic electronic (OE) devices, and to OE devices comprising the polymers.
Reported here is a new high electron affinity acceptor end group for organic semiconductors, 2,1,3‐benzothiadiazole‐4,5,6‐tricarbonitrile (TCNBT). An n‐type organic semiconductor with an indacenodithiophene (IDT) core and TCNBT end groups was synthesized by a sixfold nucleophilic substitution with cyanide on a fluorinated precursor, itself prepared by a direct arylation approach. This one‐step chemical
An Alkylated Indacenodithieno[3,2‐
<i>b</i>
]thiophene‐Based Nonfullerene Acceptor with High Crystallinity Exhibiting Single Junction Solar Cell Efficiencies Greater than 13% with Low Voltage Losses
作者:Zhuping Fei、Flurin D. Eisner、Xuechen Jiao、Mohammed Azzouzi、Jason A. Röhr、Yang Han、Munazza Shahid、Anthony S. R. Chesman、Christopher D. Easton、Christopher R. McNeill、Thomas D. Anthopoulos、Jenny Nelson、Martin Heeney
DOI:10.1002/adma.201705209
日期:2018.2
prepare an alkylatedindacenodithieno[3,2‐b]thiophene‐basednonfullereneacceptor (C8‐ITIC), is reported. Compared to the reported ITIC with phenylalkyl side chains, the new acceptor C8‐ITIC exhibits a reduction in the optical band gap, higher absorptivity, and an increased propensity to crystallize. Accordingly, blends with the donor polymer PBDB‐T exhibit a power conversion efficiency (PCE) up to
一种新的合成路线,用于制备烷基化的茚三酮二硫醚[3,2- b报道了基于噻吩的非富勒烯受体(C8-ITIC)。与报道的具有苯基烷基侧链的ITIC相比,新型受体C8-ITIC的光学带隙减小,吸收率更高,并且结晶倾向增加。因此,与供体聚合物PBDB-T的共混物显示出高达12.4%的功率转换效率(PCE)。在给体聚合物进行主链氟化后,人们发现效率得到了进一步提高,从而得到了新型材料PFBDB-T。由于较高的开路电压,与C8-ITIC混合后的结果显示出令人印象深刻的PCE高达13.2%。电致发光研究表明,主链氟化减少了共混物的能量损失,基于PFBDB-T / C8-ITIC的电池显示出0.6 eV的小能量损失以及较高的J SC为19.6mA cm -2。
TWI706955
申请人:——
公开号:——
公开(公告)日:——
INDACENODITHIOPHENE AND INDACENODISELENOPHENE POLYMERS AND THEIR USE AS ORGANIC SEMICONDUCTORS