π-Conjugated polymers with thermocleavable substituents for use as active layers in organic photovoltaics
π-Conjugated polymers with thermocleavable substituents for use as active layers in organic photovoltaics
复制标题
具有可热裂解取代基的π-共轭聚合物用作有机光伏电池的活性层
DOI：
10.1039/c0py00222d
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发表时间：
2011
影响因子：
4.6
通讯作者：
S. Holdcroft
中科院分区：
文献类型：
--
作者：
Jaclyn L. Brusso;M. Lilliedal;S. Holdcroft
将四氢吡喃基（THP）基团引入聚（3-烷基噻吩）中提供了制备可溶性π-共轭聚合物（π CP）的机会，所述π-共轭聚合物在热退火时可以变得不溶。最近的研究表明，在薄膜制造之后可能变得不可溶的π CP在光伏（PV）应用中具有潜在的用途。此外，在聚合物主链中包含3，4_亚乙基二氧噻吩（EDOT），这降低了π CP的带隙，提供了在太阳光谱上具有增加的吸收的系统。在这方面，本文报道了聚（3-（6-（2-四氢吡喃氧基）己基）噻吩）、聚（3-（8-（2-四氢吡喃氧基）辛基）噻吩）和聚[3，4-亚乙二氧基-3 ′-（6-（2-四氢吡喃氧基）己基）-2，2 ′-联噻吩]的合成、吸收曲线、薄膜X射线衍射和PV性质。除了类似于聚（3-己基噻吩）（P3 HT）的吸收曲线外，还观察到很大程度的有序性，尤其是辛基衍生物;然而，在器件制造时，这些系统被证明不如P3 HT：PCBM（聚合物PV的当前标准）。这归因于共辄聚合物在以下情况下的结晶度降低：（i）对不溶性薄膜进行脱保护和（ii）与PCBM共混。
The incorporation of tetrahydropyranyl (THP) groups into poly(3-alkylthiophene) offers an opportunity to prepare soluble π-conjugated polymers (πCPs) which, upon thermal annealing, may be rendered insoluble. Recent studies have shown that πCPs that may be rendered insoluble following thin film fabrication have potential use in photovoltaic (PV) applications. Furthermore, inclusion of 3,4-ethylenedioxythiophene (EDOT) into the polymer backbone, which lowers the band gap of the πCPs, provides a system with increased absorption over the solar spectrum. In that regard, the synthesis, absorption profiles, thin film X-ray diffraction and PV properties of poly(3-(6-(2-tetrahydropyranyloxy)hexyl)thiophene), poly(3-(8-(2-tetrahydropyranyloxy)octyl)thiophene) and poly[3,4-ethylenedioxy-3′-(6-(2-tetrahydropyranyloxy)hexyl)-2,2′-bithiophene] are reported herein. In addition to absorption profiles similar to that of poly(3-hexylthiophene) (P3HT), a large degree of order was observed, especially for the octyl derivative; however, upon device fabrication these systems proved to be inferior to that of P3HT:PCBM the current standard for polymeric PVs. This is attributed to a reduction in crystallinity of the conjugated polymer upon: (i) deprotection to the insoluble thin film and (ii) blending with PCBM.
影响因子：
29.4
作者：
Sivula, K;Ball, ZT;Fréchet, JMJ
通讯作者：
Fréchet, JMJ
DOI：
--
发表时间：
1986
期刊：
--
影响因子：
--
作者：
T. Skotheim;R. Elsenbaumer;J. Reynolds
通讯作者：
T. Skotheim;R. Elsenbaumer;J. Reynolds
影响因子：
--
作者：
Nishizawa, Takeshi;Tajima, Keisuke;Hashimoto, Kazuhito
通讯作者：
Hashimoto, Kazuhito