我们在本文中描述了具有稠合六元环的三种新型π-共轭梯形和不对称S,N-杂环的设计,合成,表征和性能评估。独特的分子设计在一个分子骨架中结合了缺电子的吡嗪和给电子的噻吩并噻吩,以实现具有六个连续环的稠合和不对称杂环,并调整了具有不同烷基链和末端氯取代基的分子结构。进行了单晶结构研究和光电性能分析,以了解将这些π支架应用于有机单晶晶体管中的结构-性质关系。电荷迁移率研究表明,空穴迁移率有望达到0.64 cm 2 V -1 s对于不对称的S,N-杂环之一,为-1。
申请人:KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY 한국과학기술연구원(319980077518) BRN ▼209-82-03522
公开号:KR101595919B1
公开(公告)日:2016-02-29
본 발명은 낮은 밴드갭을 갖는 전도성 유기 반도체 재료용 화합물 및 이를 포함하는 유기태양전지에 관한 것으로서, 본 발명은 정공이동도가 우수하고, 낮은 밴드갭을 가지며, 광흡수영역이 넓고, 적절한 분자 준위를 갖는 다이싸이에노벤조다이싸이오펜 유도체 화합물을 제공함에 따라, 유기 광센서(OPD), 유기발광다이오드(OLED), 유기박막트랜지스터(OTFT), 유기태양전지 등의 유기 광전자소자용 재료로 활용될 수 있다. 나아가, 본 발명은 상기 화합물을 포함하는 유기태양전지를 제공함으로써, 높은 에너지변환효율(power conversion efficiency, PCE)를 구현할 수 있다.
Conjugatedpolymers based on a heteroacene, 3,7‐dialkyl‐dithieno[2,3‐d:2′,3′‐d′]benzo[1,2‐b:4,5‐b′]dithiophene (DBD), are synthesized. These polymers show broad UV–vis absorption with energy bandgaps below 1.7 eV. PTDBD2, showing good miscibility in a polymer/phenyl‐C71‐butyric acid methyl ester (PC71BM) blend film, achieves a power conversion efficiency (PCE) of 7.6%. The results indicate that copolymers
基于杂并苯的共轭聚合物,3,7-二烷基-二噻吩并[2,3-- d:2',3'- d ']苯并[1,2- b:4,5- b ']二噻吩(DBD),是合成的。这些聚合物在1.7 eV以下的能带隙下显示出广泛的UV-vis吸收。PTDBD2在聚合物/苯基-C71-丁酸甲酯(PC 71 BM)共混膜中显示出良好的混溶性,实现了7.6%的功率转换效率(PCE)。结果表明,含有DBD的共聚物是高性能有机太阳能电池的有希望的候选者。
Semiconducting polymers
申请人:Yu Luping
公开号:US09153785B2
公开(公告)日:2015-10-06
Novel semiconducting photovoltaic polymers with conjugated units that provide improved solar conversion efficiency that can be used in electro-optical and electric devices. The polymers exhibit increased solar conversion efficiency in solar devices.
A Thieno[3,2‐
<i>b</i>
][1]benzothiophene Isoindigo Building Block for Additive‐ and Annealing‐Free High‐Performance Polymer Solar Cells
作者:Wan Yue、Raja Shahid Ashraf、Christian B. Nielsen、Elisa Collado‐Fregoso、Muhammad R. Niazi、Syeda Amber Yousaf、Mindaugas Kirkus、Hung‐Yang Chen、Aram Amassian、James R. Durrant、Iain McCulloch
DOI:10.1002/adma.201501841
日期:2015.8
photoactive polymer with two different molecular weights is reported, based on a new buildingblock: thieno[3,2‐b][1]benzothiopheneisoindigo. Due to the improved crystallinity, optimal blend morphology, and higher charge mobility, solar‐cell devices of the high‐molecular‐weight polymer exhibit a superior performance, affording efficiencies of 9.1% without the need for additives, annealing, or additional