具有高开放电路电压和环境光伏活动的梯形类型的oligo-p-phenylene含有共聚物
Qingdong Zheng1, Byung Jun Jung, Jia Sun
1Department of Materials Science and Engineering, The Johns Hopkins University, 102 Maryland Hall, 3400 North Charles Street, Baltimore, Maryland 21218, USA.
Journal of the American Chemical Society
|January 28, 2010
概括
新的捐赠者-接受器共聚合物具有梯形类型的oligo-p-phenylene增强聚合物太阳能电池的性能. 这些材料实现了高开放电路电压和功率转换效率,证明了它们在高效光伏应用中的潜力.
科学领域:
- 有机电子学有机电子学
- 材料科学是一种材料科学.
- 太阳能光伏发电是如何实现的
背景情况:
- 开发用于聚合物太阳能电池 (PSC) 的高效材料对于可再生能源至关重要.
- 调整分子结构是优化PSC电荷传输和光吸收的关键.
研究的目的:
- 设计和合成新型的供体-接受体共聚合物,其中包含梯形类型的橄-p-烯单元.
- 研究这些新型共聚合物对聚合物太阳能电池性能的影响.
主要方法:
- 合成和表征四个梯形类型的oligo-p-phenylene供体-受体共聚合物.
- 聚合物太阳能电池的制造和测试,使用这些共聚合物作为与烯衍生物 (PC(61) BM或PC(71) BM) 混合的活性材料.
- 测量光伏性能,包括开放电路电压,功率转换效率和场效应移动性.
主要成果:
- 与基于的对应物相比,合成的共聚物表现出增强的吸收带和更好的溶解性.
- 场效应的移动性达到了0.011cm2/ (Vs).
- 在没有进行广泛的优化的情况下,太阳能电池的功率转换效率为PC(61) BM的3.7%,PC(71) BM的4.5%,同时具有1.06V的高开放电路电压.
结论:
- 梯形类型的oligo-p-phenylene供体-接受体共聚合物是高性能聚合物太阳能电池的有希望的材料.
- 更深的HOMO水平有助于更高的开放电路电压,而可调节的带间隙可以增强光收获.
- 这些共聚合物在可溶性和吸收性质方面比传统的基材料具有优势.
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