Understanding the Influence of Morphology on Poly(3-hexylselenothiophene):PCBM Solar Cells
Understanding the Influence of Morphology on Poly(3-hexylselenothiophene):PCBM Solar Cells
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DOI：
10.1021/ma902477h
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发表时间：
2010-02-09
期刊：
影响因子：
5.5
通讯作者：
Smith, Paul
中科院分区：
文献类型：
--
作者：
Ballantyne, Amy M.;Ferenczi, Toby A. M.;Smith, Paul
与P3 HT：PCBM相比，P3 HS：PCBM共混膜的微观结构、电荷传输和电荷动力学试图找出P3 HS：PCBM光伏器件性能较差的原因。P3HT：PCBM和P3HS：PCBM膜使用显微拉曼光谱映射成像，以比较微观结构和相分离。使用氯苯制备聚合物和聚合物：PCBM共混物溶液，并搅拌24小时以完全溶解聚合物。将P3HT：PCBM和P3HS：PCBM共混物膜（1：1）从温溶液旋涂到石英基底上。由于P3HS的低溶解度，将P3HS：PCBM膜旋涂到80 ℃的基底上。所有膜都在具有过滤空气环境的洁净室中沉积。将一些共混物膜在干燥氮气环境中在140 ℃下热退火30 mm。结果表明，通过组分材料的自组织性质对共混膜的微观结构进行精细控制是实现新型有机光伏材料潜力的关键。
The microstructure, charge transport and charge dynamics in blend films of P3HS: PCBM in comparison with P3HT: PCBM in attempt to identify the reasons for the poorer performance in P3HS: PCBM photovoltaic devices. P3HT: PCBM and P3HS: PCBM films were imaged using micro-Raman spectroscopy mapping in order to compare microstructure and phase separation. Both polymer and polymer: PCBM blend solutions were prepared using chlorobenzene and stirred for 24 h to fully dissolve the polymer. P3HT: PCBM and P3HS: PCBM blend films (1: 1) were spin-coated onto quartz substrates from warm solutions. Because of low solubility of P3HS P3HS: PCBM films were spin-coated onto substrates that were 80 C. All films were deposited in a clean room with a filtered air environment. Some blend films were thermally annealed at 140 C for 30 mm in a dry nitrogen environment. The result show that fine control of blend film microstructure through the self-organizing properties of the component materials is essential to realize the potential of new organic photovoltaic materials.