共轭聚合物中无序效应对激子静态性质的影响

来源 :2016第二届有机光电材料与器件国际会议 | 被引量 : 0次 | 上传用户:qingqing20090756
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
  基于共轭聚合物给体(D)/富勒烯受体(A)的聚合物太阳能电池,由于其低成本、柔性等特点,依然是光伏产业的重要方向.目前,其核心问题是光电转换效率仍达不到产业化的要求.多年来,基于激子理论的指导,尽管聚合物太阳能电池的光电转换效率已突破10%,但是,一方面基于该理论指导下的聚合物太阳能电池器件效率的提升已越发困难,另一方面,超快电荷分离现象的发现也对该理论提出了挑战.2012 年,Kaake 等人通过瞬态光吸收谱实验较早报到了在某些聚合物光伏体系内存在超快电荷分离[1]; 2014 年,Gelinas 等人结合超快光致吸收光谱和电致吸收光谱的研究进一步证实了这种超快电荷分离现象的存在,并把它归结为激子等激发态的空间离域性[2].
其他文献
A polymer P1 was successfully synthesized through the Wittig-Horner reaction by employing fluorene and 9,10-distyrylanthracene moieties as building blocks for backbone and tetraphenylethenes as pendan
Organic-inorganic hybrid perovskite has been proved to be a promising material for light emitting devices(LEDs).Emission of organic-inorganic hybrid perovskites based on bulk[1],layered[2] and quantum
Tandem organic solar cells(TOSCs),which integrate multiple organic photovoltaic layers with complementary absorption in series,have spurred much interest because of their advantages in harvesting a gr
White light-emitting diodes(WLEDs)because of its significant advantages of energy saving and environmental protection will become the main lighting in the future.[1-5] White light-emitting materials a
Crystallization of perovskite films is crucial to perovskite solar cells(PSCs),so a dissolution-recrystallization method and an environment-friendly cesium iodide interface modifier were explored to i
Organic-inorganic hybrid perovskites,as a new and fantastic family of semiconducting material,have lighten up the whole research field of photovoltaic by presenting efficiency with unprecedented growt
Considering the evaporation of solvents during fabrication of perovskite films,the organic ambience will present a significant influence on the morphologies and properties of perovskite films.To clari
Perovskite solar cells have attracted tremendous attention in recent years due to the high device performance and the unique optoelectronic properties of perovskite materials.Charge carrier balance is
In this study,two hydrogen-bonded organic frameworks(HOFs),namely,HOFTPE3N and HOFTPE4N,have been constructed from nitro-substituted tetraphenylethene.In HOFTPE4N,two types of pores are observed with
利用正己烷作为分散剂,用溶胶-凝胶法制备了粒径为2~3nm 超小氧化锌量子点,强烈的尺寸效应将紫外发光峰蓝移至深紫外区(300nm~360nm),计算得其禁带宽度约为3.5~4.0eV.用巯基乙酸对获得的氧化锌量子点进行了修饰,并对影响修饰效果的因素(溶液浓度,溶液温度,溶液混合时间,氧化锌量子点与巯基乙酸的摩尔比)进行了研究.结果 表明,巯基乙酸修饰氧化锌量子点后可得到了来自氧化锌量子点带-带跃