Convenient synthesis and polymerization of 5,6-disubstituted dithiophthalides toward soluble poly(isothianaphthene): An initial spectroscopic characterization of the resulting low-band-gap polymers

2003 ◽  
Vol 41 (7) ◽  
pp. 1034-1045 ◽  
Author(s):  
I. Polec ◽  
A. Henckens ◽  
L. Goris ◽  
M. Nicolas ◽  
M. A. Loi ◽  
...  
Keyword(s):  
Band Gap ◽  
Spectroscopic Characterization ◽  
Low Band Gap ◽  
Convenient Synthesis ◽  
Low Band Gap Polymers ◽  
Soluble Poly

Electrochemically- and Photo-Induced IR Absorption of Low Band-Gap Polydithienothiophenes: A Comparative Study

1999 ◽  
Vol 598 ◽  
Author(s):  
A. Cravino ◽  
H. Neugebauer ◽  
Niyazi S. Sariciftci ◽  
M. Catellani ◽  
S. Luzzati
Keyword(s):  
Band Gap ◽  
Spectroscopic Characterization ◽  
Attenuated Total Reflection ◽  
Ir Absorption ◽  
Potential Cycling ◽  
Low Band Gap ◽  
Thin Polymer ◽  
Low Band Gap Polymers ◽  
Ir Spectroscopic

ABSTRACTPoly(dithieno[3,4-b:3',4'-d]thiophene) (pDTT1), poly(dithieno[3,4-b:3',2'-d]thiophene (pDTT2) and poly(dithieno[3,4-b:2',3'-d]thiophene) (pDTT3) are low band-gap polymers that undergo both p- (oxidation) and n- (reduction) type electrochemical reversible doping in organic electrolytes. In this work we report on the in-situ IR spectroscopic characterization of both doping types using attenuated total reflection (ATR) FTIR spectroelectrochemistry. Thin polymer films were prepared on Ge reflection elements by electrosynthesis. During electrochemical potential cycling experiments in a spectroelectrochemical cell, the evolution of infrared active vibrational (IRAV) modes, correlated with the generation of charge within the polymer chain, was studied. In addition to electrochemical doping, the polymers exhibit also charged excitations by photodoping. FTIR spectra recorded by illumination/dark cycles show photoinduced IRAV bands which are similar to those found for the electrochemically p-doped materials. The infrared spectroscopic results are compared with Raman spectra of the neutral polymers. The relationship between vibrational properties and structure of the polymers is discussed in terms of different contribution of the φ-electrons within the repeating units to the electronic structure of the conjugated backbone.

Synthesis and characterization of new low band-gap polymers containing electron-accepting acenaphtho[1,2-c]thiophene-S,S-dioxide groups

2015 ◽  
Vol 54 (4) ◽  
pp. 498-506 ◽  
Author(s):  
Yu-Rim Shin ◽  
Woo-Hyung Lee ◽  
Jong Baek Park ◽  
Ji-Hoon Kim ◽  
Sang Kyu Lee ◽  
...  
Keyword(s):  
Band Gap ◽  
Synthesis And Characterization ◽  
Low Band Gap ◽  
Low Band Gap Polymers

Synthesis and characterization of novel low band-gap polymers containing squaraine units

2007 ◽  
Vol 18 (12) ◽  
pp. 1531-1534 ◽  
Author(s):  
Er Fu Huo ◽  
Jiang Yong Wu ◽  
Bao Feng Song ◽  
Ying Li ◽  
Qing Jiang ◽  
...  
Keyword(s):  
Band Gap ◽  
Synthesis And Characterization ◽  
Low Band Gap ◽  
Low Band Gap Polymers

Low band gap polymers for application in solar cells: synthesis and characterization of thienothiophene–thiophene copolymers

2014 ◽  
Vol 5 (7) ◽  
pp. 2391 ◽  
Author(s):  
P. Morvillo ◽  
R. Diana ◽  
C. Fontanesi ◽  
R. Ricciardi ◽  
M. Lanzi ◽  
...  
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
Synthesis And Characterization ◽  
Low Band Gap ◽  
Low Band Gap Polymers

Synthesis and characterization of novel low band gap polymers: Poly(heteroarylene methines)

2006 ◽  
Vol 156 (11-13) ◽  
pp. 804-808 ◽  
Author(s):  
Qinghui Zhang ◽  
Jichang Feng ◽  
Kuan Liu ◽  
Dexi Zhu ◽  
Mujie Yang ◽  
...  
Keyword(s):  
Band Gap ◽  
Synthesis And Characterization ◽  
Low Band Gap ◽  
Low Band Gap Polymers

Characterization of inverted polymer solar cells with low-band-gap polymers as donor materials

2012 ◽  
Vol 60 (12) ◽  
pp. 2034-2037 ◽  
Author(s):  
Hong Il Kim ◽  
Jung Min Cho ◽  
Won Suk Shin ◽  
Sang Kyu Lee ◽  
Jong-Cheol Lee ◽  
...  
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
Polymer Solar Cells ◽  
Low Band Gap ◽  
Low Band Gap Polymers ◽  
Inverted Polymer Solar Cells

Synthesis and characterization of dithienylbenzobis(thiadiazole)-based low band-gap polymers for organic electronics

2011 ◽  
Vol 47 (31) ◽  
pp. 8931 ◽  
Author(s):  
Heong Sub Oh ◽  
Tae-Dong Kim ◽  
Yun-Hyuk Koh ◽  
Kwang-Sup Lee ◽  
Shinuk Cho ◽  
...  
Keyword(s):  
Band Gap ◽  
Organic Electronics ◽  
Synthesis And Characterization ◽  
Low Band Gap ◽  
Low Band Gap Polymers

scholarly journals Development and Assessment of Quinoidal Index for Designing of Low Band Gap Polymers

2017 ◽  
Vol 16 (5) ◽  
pp. 123-125 ◽  
Author(s):  
Kota OTSUKI ◽  
Yoshihiro HAYASHI ◽  
Susumu KAWAUCHI
Keyword(s):  
Band Gap ◽  
Low Band Gap ◽  
Low Band Gap Polymers

Synthesis and Characterization of an Anthracene-Based Low Band Gap Polymer for Photovoltaic Devices

2014 ◽  
Vol 14 (8) ◽  
pp. 6422-6426 ◽  
Author(s):  
In Hwan Jung ◽  
Hoyeon Kim ◽  
Wonho Lee ◽  
Byung Jun Jung ◽  
Han Young Woo ◽  
...  
Keyword(s):  
Band Gap ◽  
Synthesis And Characterization ◽  
Photovoltaic Devices ◽  
Low Band Gap ◽  
Low Band Gap Polymer
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