Specific interaction between fluorine atoms and thiol groups accounting for higher domain purity and photostability in narrowband BHJ systems
Specific interaction between fluorine atoms and thiol groups accounting for higher domain purity and photostability in narrowband BHJ systems
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氟原子和硫醇基团之间的特定相互作用导致窄带 BHJ 系统具有更高的域纯度和光稳定性
DOI：
10.1002/polb.24849
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发表时间：
2019-07
期刊：
影响因子：
--
通讯作者：
Chen Yiwang
中科院分区：
文献类型：
--
作者：
Zhou Weihua;Yu Zoukangning;Zhang Ming;Zhang Lifu;Yin Jingping;Ai Qingyun;Huang Liqiang;Liu Feng;Zeng Jianrong;Chen Yiwang
为了探索氟原子在 1,4-丁二硫醇 (BT) 存在下对光稳定性以及活性层形貌控制的作用，研究了主链中含有或不含氟原子的四种聚合物，包括聚噻吩并[3,4-b]噻吩/苯并二噻吩，聚[(4,8-双-(2-乙基己氧基)-苯并(1,2-b:4,5-b9)二噻吩)-2,6-二基-alt-(4-(2-乙基己酰基)-噻吩并[3,4-b]噻吩-)-2-6-二基)],聚[4,8-双(5-(2-乙基己基)噻吩-2-基)苯并[1,2-b;4,5-b']二噻吩-2,6-二基-alt-(4-(2-乙基己基)-3-氟噻吩并[3,4-b]噻吩-)-2-羧酸酯-2-6-二基)]，和选择聚[4,8-双-(2-乙基-己基-噻吩-5-基)-苯并[1,2-b:4,5-b0]二噻吩-2,6-二基]-alt-[2-(20-乙基-己酰基)-噻吩并[3,4-b]噻吩-4,6-二基]进行比较。结果发现，在 BT 添加剂存在下，在聚合物主链中含有氟原子的样品在光照 1 小时后表现出更高的稳定性，从而有助于更高的域纯度。氟原子和硫醇基团之间的特异性相互作用通过在 2663.1 cm−1 处出现新的吸收峰得到证明，此外，傅里叶变换红外（FTIR）光谱证实，由于 SH 伸缩振动而导致 2556.2 cm−1 处的峰变宽。这一发现可以指导硫醇作为有效溶剂添加剂在形态和稳定性优化中的准确使用。 © 2019 Wiley periodicals, Inc. J. Polym。科学，B 部分：聚合物。物理学.2019,57, 941–951
In order to explore the role of fluorine atoms on photostability as well as morphology control of active layer in the presence of 1,4‐butanedithiol (BT), the four polymers with or without fluorine atoms in the backbones including polythieno[3,4‐b]thiophene/benzodithiophene, poly[(4,8‐bis‐(2‐ethylhexyloxy)‐benzo(1,2‐b:4,5‐b9)dithiophene)‐2,6‐diyl‐alt‐(4‐(2‐ethylhexanoyl)‐thieno[3,4‐b]thiophene‐)‐2‐6‐diyl)], poly[4,8‐bis(5‐(2‐ethylhexyl)thiophen‐2‐yl)benzo[1,2‐b;4,5‐b′]dithiophene‐2,6‐diyl‐alt‐(4‐(2‐ethylhexyl)‐3‐fluorothieno[3,4‐b]thiophene‐)‐2‐carboxylate‐2‐6‐diyl)], and poly[4,8‐bis‐(2‐ethyl‐hexyl‐thiophene‐5‐yl)‐benzo[1,2‐b:4,5‐b0]dithiophene‐2,6‐diyl]‐alt‐[2‐(20‐ethyl‐hexanoyl)‐thieno [3,4‐b]thiophen‐4,6‐diyl] were selected for comparison. It is found that the specimens containing fluorine atoms in polymer backbones showed of higher stability after illumination for 1 h in the presence of BT additive, contributing to the higher domain purity. The specific interaction between fluorine atoms and thiol groups was demonstrated by the appearance of novel absorption peak at 2663.1 cm−1, in addition to the broadening of peak at 2556.2 cm−1ascribing to SH stretching vibration as confirmed by Fourier transform infrared (FTIR) spectroscopy. The finding may guide the accurate use of thiols as effective solvent additive in morphology and stability optimization. © 2019 Wiley Periodicals, Inc. J. Polym. Sci., Part B: Polym. Phys.2019,57, 941–951
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DOI：
10.1140/epjst/e2009-00946-3
发表时间：
2009-03
期刊：
The European Physical Journal Special Topics
影响因子：
--
作者：
S. Swaraj;C. Wang;T. Araki;G. Mitchell;L. Liu;S. Gaynor;B. Deshmukh;H. Yan;C. McNeill;H. Ade
通讯作者：
S. Swaraj;C. Wang;T. Araki;G. Mitchell;L. Liu;S. Gaynor;B. Deshmukh;H. Yan;C. McNeill;H. Ade
影响因子：
3
作者：
K. Pandey
通讯作者：
K. Pandey
影响因子：
19
作者：
Jacobus J. van Franeker;D. Hermida-Merino;C. Gommes;K. Arapov;J. Michels;René A. J. Janssen;G. Portale
通讯作者：
Jacobus J. van Franeker;D. Hermida-Merino;C. Gommes;K. Arapov;J. Michels;René A. J. Janssen;G. Portale
影响因子：
27.8
作者：
Xiao Wang;H. Egelhaaf;H. Mack;H. Azimi;C. Brabec;A. Meixner;Dai Zhang
通讯作者：
Xiao Wang;H. Egelhaaf;H. Mack;H. Azimi;C. Brabec;A. Meixner;Dai Zhang
影响因子：
8.6
作者：
Bokel, Felicia A.;Engmann, Sebastian;Hexemer, Alexander
通讯作者：
Hexemer, Alexander