Synthesis and characterization of isoindigo-based polymers using CH-arylation polycondensation reactions for organic photovoltaics

2014 ◽  
Vol 52 (20) ◽  
pp. 2926-2933 ◽  
Author(s):  
Walaa Elsawy ◽  
Hongkyu Kang ◽  
Kilho Yu ◽  
Ahmed Elbarbary ◽  
Kwanghee Lee ◽  
...  
Keyword(s):  
Organic Photovoltaics ◽  
Synthesis And Characterization

Synthesis and characterization of 2H-benzimidazole- and terthiophene-based polymer for organic photovoltaics

2011 ◽  
Vol 161 (3-4) ◽  
pp. 307-312 ◽  
Author(s):  
Suhee Song ◽  
Sung Heum Park ◽  
Youngeup Jin ◽  
Jinwoo Kim ◽  
Joo Young Shim ◽  
...  
Keyword(s):  
Organic Photovoltaics ◽  
Synthesis And Characterization

scholarly journals Synthesis and Characterization of Two-Dimensional Conjugated Polymers Incorporating Electron-Deficient Moieties for Application in Organic Photovoltaics

Polymers ◽  
2016 ◽  
Vol 8 (11) ◽  
pp. 382 ◽  
Author(s):  
Chuen-Yo Hsiow ◽  
Han-Ying Wang ◽  
Yu-Hsiang Lin ◽  
Rathinam Raja ◽  
Syang-Peng Rwei ◽  
...  
Keyword(s):  
Conjugated Polymers ◽  
Organic Photovoltaics ◽  
Synthesis And Characterization ◽  
Two Dimensional

scholarly journals Synthesis and characterization of fluorinated azadipyrromethene complexes as acceptors for organic photovoltaics

2016 ◽  
Vol 12 ◽  
pp. 1925-1938 ◽  
Author(s):  
Forrest S Etheridge ◽  
Roshan J Fernando ◽  
Sandra Pejić ◽  
Matthias Zeller ◽  
Geneviève Sauvé
Keyword(s):  
Organic Photovoltaics ◽  
Conjugated Polymer ◽  
Lower Energy ◽  
Energy Levels ◽  
Electron Acceptors ◽  
Synthesis And Characterization ◽  
Fluorine Substitution ◽  
Reduction Potentials ◽  
Oxidation Potentials

Homoleptic zinc(II) complexes of di(phenylacetylene)azadipyrromethene (e.g., Zn(WS3)2) are potential non-fullerene electron acceptors for organic photovoltaics. To tune their properties, fluorination of Zn(WS3)2 at various positions was investigated. Three fluorinated azadipyrromethene-based ligands were synthesized with fluorine at the para-position of the proximal and distal phenyl groups, and at the pyrrolic phenylacetylene moieties. Additionally, a CF3 moiety was added to the pyrrolic phenyl positions to study the effects of a stronger electron withdrawing unit at that position. The four ligands were chelated with zinc(II) and BF2 + and the optical and electrochemical properties were studied. Fluorination had little effect on the optical properties of both the zinc(II) and BF2 + complexes, with λmax in solution around 755 nm and 785 nm, and high molar absorptivities of 100 × 103 M−1cm−1 and 50 × 103 M−1cm−1, respectively. Fluorination of Zn(WS3)2 raised the oxidation potentials by 0.04 V to 0.10 V, and the reduction potentials by 0.01 V to 0.10 V, depending on the position and type of substitution. The largest change was observed for fluorine substitution at the proximal phenyl groups and CF3 substitution at the pyrrolic phenylacetylene moieties. The later complexes are expected to be stronger electron acceptors than Zn(WS3)2, and may enable charge transfer from other conjugated polymer donors that have lower energy levels than poly(3-hexylthiophene) (P3HT).

Synthesis and Characterization of Benzotriazole-Based Polymer Donors with Good Planarity for Organic Photovoltaics

2020 ◽  
Vol 28 (10) ◽  
pp. 903-909
Author(s):  
Suha Lee ◽  
Jong-Woon Ha ◽  
Hea Jung Park ◽  
Do-Hoon Hwang
Keyword(s):  
Organic Photovoltaics ◽  
Synthesis And Characterization

Synthesis and Characterization of the Three Dicyclopentapyrenes

1996 ◽  
Vol 61 (10) ◽  
pp. 3572-3572
Author(s):  
Lawrence T. Scott ◽  
Atena Necula
Keyword(s):  
Synthesis And Characterization
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