Fine dispersion and self-assembly of ZnO nanoparticles driven by P3HT-b-PEO diblocks for improvement of hybrid solar cells performance
Fine dispersion and self-assembly of ZnO nanoparticles driven by P3HT-b-PEO diblocks for improvement of hybrid solar cells performance
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P3HT-b-PEO二嵌段驱动的ZnO纳米颗粒的精细分散和自组装可提高混合太阳能电池的性能
DOI：
10.1039/c2nj40563f
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
Yiwang Chen
中科院分区：
文献类型：
--
作者：
Fan Li;Yueqin Shi;Kai Yuan;Yiwang Chen
以棒状-卷曲共轭嵌段共聚物聚3-己基噻吩-b-聚环氧乙烷（P3 HT-b-PEO）为电子给体，与ZnO纳米粒子共混制备了杂化体异质结（BHJ）太阳能电池。紫外-可见（UV-vis）吸收光谱表明，P3 HT-b-PEO/ZnO共混膜在610 nm处的吸收强度高于P3 HT/ZnO共混膜，这是由于P3 HT主链具有较强的π-π堆积相互作用和较高的结晶能力，特别是热处理后，PEO链段的引入使P3 HT的堆积更加紧密，结构更加有序。由于嵌段共聚物的性质以及PEO链上的氧原子与ZnO极性表面的相互作用，P3 HT-b-PEO双嵌段共聚物能够钝化ZnO表面缺陷，并使ZnO在聚合物基体中实现精细分散和自组装，从而提高了器件的功率转换效率和热稳定性。总之，这项工作表明，共轭嵌段共聚物在混合BHJ太阳能电池中的应用是一种有前途的方法，以提高器件的性能和热稳定性。
The rod-coil conjugated diblock copolymers of poly(3-hexylthiophene)-b-poly(ethylene oxide) (P3HT-b-PEO), acting as an electron donor, were blended with ZnO nanoparticles to fabricate the hybrid bulk-heterojunction (BHJ) solar cells. According to the ultraviolet-visible (UV-vis) absorption spectroscopy, the intensity at 610 nm, derived from a strong inter-molecular interaction of π–π stacking and the high crystallizability of the P3HT main chains, was higher in P3HT-b-PEO/ZnO blend films than that in P3HT/ZnO blend films especially after thermal treatment, revealing that PEO segments could make P3HT form more densely stacked and orderly structured. Due to the nature of block copolymers and the interaction between the oxygen atoms of the PEO chains and the ZnO polar surface, the surface defects of ZnO were passivated and the fine dispersion and self-assembly of ZnO in the polymer matrix driven by the P3HT-b-PEO diblock copolymer was obtained, leading to the improvement of device power conversion efficiency and thermal stability. Overall, this work demonstrated that the application of conjugated block copolymers in hybrid BHJ solar cells was a promising approach to improve the device performance and thermal stability.
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影响因子：
19
作者：
M. Sommer;Stefan M. Lindner;M. Thelakkat
通讯作者：
M. Sommer;Stefan M. Lindner;M. Thelakkat
影响因子：
5.5
作者：
M. Urien;Harikrishna Erothu;É. Cloutet;R. Hiorns;L. Vignau;H. Cramail
通讯作者：
M. Urien;Harikrishna Erothu;É. Cloutet;R. Hiorns;L. Vignau;H. Cramail
影响因子：
6.9
作者：
Krebs, Frederik C.
通讯作者：
Krebs, Frederik C.
原子转移自由基聚合和水解原位制备聚噻吩/ZnO纳米晶杂化物及其荧光猝灭性能
影响因子：
6.7
作者：
Peng, Xiaoming;Zhang, Lin;Zhou, Weihua
通讯作者：
Zhou, Weihua
影响因子：
10.8
作者：
Leventis, Henry C.;King, Simon P.;Haque, Saif A.
通讯作者：
Haque, Saif A.