Selenium-containing D−A−D-type dopant-free hole transport materials for perovskite solar cells
作者:Yajie Fu、Yapeng Sun、Hao Tang、Lingyun Wang、Huangzhong Yu、Derong Cao
DOI:10.1016/j.dyepig.2021.109339
日期:2021.7
A novel selenium-containing D−A−D-type dopant-freehole-transportmaterial with fused dithienobenzoselenadiazole acceptor unit (DTBS) was designed, synthesized and applied in a perovskitesolarcell (PSC). In addition, two dopant-freehole-transportmaterials were prepared as references with similar structure but different chalcogen elements (O for DTBF and S for DTBT) being used. The impact of chalcogen
Dithienobenzochalcogenodiazole-based electron donor–acceptor polymers for organic electronics
作者:Amsalu Efrem、Yanlian Lei、Bo Wu、Mingfeng Wang、Siu Choon Ng、Beng S. Ong
DOI:10.1016/j.dyepig.2016.01.035
日期:2016.6
conjugated electron donor-acceptor (D-A) polymers. Detailed systematic investigations were carried out to study the effects of chalcogen atoms and three donor units on the optical and electrochemical properties as well as photovoltaic and field-effect transistor performance of the D-A polymers. All polymers displayed good thermal properties. Polymers containing benzooxadiazole moiety showed deeper
制备了适当官能化的二噻吩并苯并噻二唑和二噻吩并苯并恶二唑单体,并将其用于共轭电子给体-受体(DA)聚合物的合成。进行了详细的系统研究,以研究硫族元素原子和三个施主单元对DA聚合物的光学和电化学性能以及光伏和场效应晶体管性能的影响。所有聚合物均显示出良好的热性能。与含苯并噻二唑的类似物相比,含苯并恶二唑部分的聚合物显示出更深的LUMO水平,而较弱的供体单元衍生的聚合物则显示出更高的HOMO水平。光伏功率转换效率超过2%,空穴场效应迁移率为2.6×10 -2 cm获得2 V -1 s -1和开/关比超过10 5。这些结果表明,二噻吩并苯并硫属元素二唑结构是潜在的有用的电子受体构件,可用于构建有机电子应用的DA聚合物。
The effect of thiadiazole out-backbone displacement in indacenodithiophene semiconductor polymers
作者:Miquel Planells、Mark Nikolka、Michael Hurhangee、Pabitra S. Tuladhar、Andrew J. P. White、James R. Durrant、Henning Sirringhaus、Iain McCulloch
DOI:10.1039/c4tc01500b
日期:——
We explore the effect of moving the well-known thiadiazole unit away from the polymer backbone on polymer optoelectronic properties and ultimately on device performance.