基于Pyridalthiadiazole的窄带间隙染色体
Zachary B Henson1, Gregory C Welch, Thomas van der Poll
1Center for Polymers and Organic Solids, University of California, Santa Barbara, California 93106, USA.
Journal of the American Chemical Society
|January 31, 2012
概括
在有机光伏中,新的 π 结合材料与化[2,1,3] 提亚醇单元提供了高效率. 系统的结构修改可以预测性质的调整,以提高设备的性能.
科学领域:
- 材料科学 材料科学 材料科学
- 有机化学 有机化学
- 太阳能光伏发电是如何实现的
背景情况:
- 具有pyridal[2,1,3]thiadiazole (PT) 单元的π-联材料在散装异质连接有机光伏 (OPV) 中表现出高功率转换效率 (PCE).
- 了解结构属性关系对于提高这些分子系统的性能至关重要.
研究的目的:
- 系统地合成和描述一系列D(1) -PT-D(2) -PT-D(1) 化合物,以建立可预测的结构-性质关系.
- 探索分子结构的修改如何影响OPV设备制造相关的电子,热和溶解性质.
主要方法:
- 合成了13种结构相关的D(1) -PT-D(2) -PT-D(1) 化合物.
- 使用吸收光谱学,循环电压测量,热重量测量分析 (TGA),差分扫描热量测量 (DSC) 和溶解性分析进行表征.
- 在PT异环中对化N原子区域化学的研究.
主要成果:
- 通过改变终端封顶D(1) 单元来实现对电子能量水平的精细控制.
- 在D(2) 上替换基链允许调节融/结晶温度和溶解度.
- 对核心供体D(2) 单元的修改导致了所有检查的属性的可预测变化.
- 该研究确定了哪些材料特性可以从分子结构中轻松预测,哪些需要进一步研究.
结论:
- 微妙的结构修改提供了一个简单的途径来定制pyridal[2,1,3]thiadiazole染色体结构.
- 这些发现为设计新型分子框架提供了指导方针,以潜在地超越当前最先进的OPV性能.
- 这项系统研究促进了对有机光伏材料固态性质的预测理解.
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