在这项研究中,我们通过比较BDTT均聚物(PBDTT),探索了烷基噻吩(T)和烷基噻吩(TS)取代基对苯并[1,2- b ; 4,5- b ']二噻吩(BDT)单元的影响,所述BDTT- ALT -BDTT-S共聚物(PBDTT-BDTT-S),和在紫外-可见吸收光谱而言BDTT-S均聚物(PBDTT-S),循环伏安法(CV)的结果,计算的计算,与实验结果。TS取代基增加了聚合物的空穴迁移率,并下移了聚合物的最高占据分子轨道(HOMO)能级,导致吸收光谱发生了轻微的红移。基于PBDTT-S作为施主的有机光伏(OPV)电池和[6,6] -苯基-C 71 -butylic酸甲酯(PC作为受主的71 BM)在AM 1.5G照明(100 mW cm -2)下显示出7.05%的高功率转换效率(PCE)。据我们所知,该PCE值是报道的基于均聚物供体的OPV的最高值之一。与显示相似吸收曲线的众所周知
End group tuning in small molecule donors for non-fullerene organic solar cells
作者:Jie Guo、Dmitry O. Balakirev、Chengjun Gu、Svetlana M. Peregudova、Sergei A. Ponomarenko、Zhitian Liu、Yuriy N. Luponosov、Jie Min、Aiwen Lei
DOI:10.1016/j.dyepig.2019.108078
日期:2020.4
Two novel smallmolecules, which consist of electron donating benzodithiophene core bridged through bithiophene π-spacer with terminal either dicyanovinyl (DCV-Me) or n-butyl cyanoester (CNAB) electron-withdrawing groups, were designed and used as donor materials for all-small molecule OSCs (all-SM-OSCs) with a non-fullerene acceptor (IDIC). The novel donor oligomers were firstly characterized by thermal
derivative as the π bridge and the acceptor (A) of D‐(A‐π‐A)2 motif dyesensitizers. The photophysical, electrochemical, and photovoltaic properties of these complexes have been investigated. The four complexes‐based dye‐sensitizedsolarcells (DSSCs) device exhibited a short‐circuit photocurrent density (Jsc) of 17.51, 17.02, 15.07, and 14.38 mA cm−2 and an attractive power conversion efficiency (η) of 8
设计,合成和表征了四种具有对称结构的金属配合物BDTT-PCd,BDTT-PZn,BDTT-PCu和BDTT-PCo,可用作D-(A-π-A)2基序染料敏化剂。这些络合物采用Cd(II),Zn(II),Cu(II)和Co(II)络合物作为辅助电子受体(A),噻吩基苯并[1,2- b:4,5- b ']二噻吩(BDTT )作为电子供体(D),8-喹啉醇衍生物作为D-(A-π-A)2基序染料敏化剂的π桥和受体(A)。已经研究了这些配合物的光物理,电化学和光伏性质。四个基于配合物的染料敏化太阳能电池(DSSC)装置表现出短路光电流密度(J sc)在AM 1.5辐照(100 mW cm -2)下的电导率分别为17.51、17.02、15.07和14.38 mA cm -2,有吸引力的功率转换效率(η)分别为8.82%,8.32%,8.03%和7.55%。)。依次降低了BDTT-PCd,BDTT-P
Enhanced and controllable open-circuit voltage using 2D-conjugated benzodithiophene (BDT) homopolymers by alkylthio substitution
this study, we explore the effects of alkylthiophene (T) and alkylthiothiophene (T-S) substituents on the benzo[1,2-b;4,5-b′]dithiophene (BDT) unit by comparing the BDTT homopolymer (PBDTT), the BDTT-alt-BDTT-S copolymer (PBDTT-BDTT-S), and the BDTT-S homopolymer (PBDTT-S) in terms of UV-visible absorption spectra, cyclicvoltammetry (CV) results, computational calculations, and experimental results
在这项研究中,我们通过比较BDTT均聚物(PBDTT),探索了烷基噻吩(T)和烷基噻吩(TS)取代基对苯并[1,2- b ; 4,5- b ']二噻吩(BDT)单元的影响,所述BDTT- ALT -BDTT-S共聚物(PBDTT-BDTT-S),和在紫外-可见吸收光谱而言BDTT-S均聚物(PBDTT-S),循环伏安法(CV)的结果,计算的计算,与实验结果。TS取代基增加了聚合物的空穴迁移率,并下移了聚合物的最高占据分子轨道(HOMO)能级,导致吸收光谱发生了轻微的红移。基于PBDTT-S作为施主的有机光伏(OPV)电池和[6,6] -苯基-C 71 -butylic酸甲酯(PC作为受主的71 BM)在AM 1.5G照明(100 mW cm -2)下显示出7.05%的高功率转换效率(PCE)。据我们所知,该PCE值是报道的基于均聚物供体的OPV的最高值之一。与显示相似吸收曲线的众所周知
[EN] POLYMERS CONTAINING 3'-(ALKOXY) - [2,2'-BITHIOPHENE]-3-CARBONITRILE FOR HIGH PERFORMANCE ORGANIC PHOTOVOLTAICS<br/>[FR] POLYMÈRES CONTENANT DU 3'-(ALCOXY)-[2,2'-BITHIOPHÈNE]-3-CARBONITRILE POUR ÉLÉMENTS PHOTOVOLTAÏQUES ORGANIQUES À HAUTE PERFORMANCE
申请人:PHILLIPS 66 CO
公开号:WO2020018442A1
公开(公告)日:2020-01-23
A novel AB-type copolymer for use in organic photovoltaics. The AB-type copolymer comprises a unit A, where the unit A is (Formula), where R1 is a carbon chain from about 1 to about 30 units and where Y is selected from CN, F and Cl. The B unit of the AB-type copolymer is selected from is selected from: (formulas) wherein X1, X2, X3, and X4 are independently selected from the group consisting of: H, Cl, F, CN, alkyl, alkylthiol, alkoxy, ester, ketone, amide and aryl groups.