Photovoltaic poly(rod-coil) polymers based on benzodithiophene-centred A–D–A type conjugated segments and dicarboxylate-linked alkyl non-conjugated segments

RSC Advances ◽  
2016 ◽  
Vol 6 (28) ◽  
pp. 23300-23309 ◽  
Author(s):  
Xuan Xiang ◽  
Wei Shao ◽  
Long Liang ◽  
Xue-Qiang Chen ◽  
Fu-Gang Zhao ◽  
...  
Keyword(s):  
Conjugated Polymers ◽  
New Class ◽  
Photovoltaic Materials ◽  
Molecular Compounds

Different from the well-studied photovoltaic conjugated polymers and small molecular compounds, poly(rod-coil) polymers are emerging as a new class of photovoltaic materials.

Electronic structure studies of conducting polymers by electron energy-loss spectroscopy

1996 ◽  
Vol 54 ◽  
pp. 160-161
Author(s):  
J. Fink
Keyword(s):  
Electronic Structure ◽  
Conducting Polymers ◽  
Conjugated Polymers ◽  
Electron Acceptors ◽  
Electron Donors ◽  
Light Emitting ◽  
One Dimensional ◽  
New Class ◽  
Electrical Conductivities ◽  
Electron Energy Loss

Conducting polymers comprises a new class of materials achieving electrical conductivities which rival those of the best metals. The parent compounds (conjugated polymers) are quasi-one-dimensional semiconductors. These polymers can be doped by electron acceptors or electron donors. The prototype of these materials is polyacetylene (PA). There are various other conjugated polymers such as polyparaphenylene, polyphenylenevinylene, polypoyrrole or polythiophene. The doped systems, i.e. the conducting polymers, have intersting potential technological applications such as replacement of conventional metals in electronic shielding and antistatic equipment, rechargable batteries, and flexible light emitting diodes.Although these systems have been investigated almost 20 years, the electronic structure of the doped metallic systems is not clear and even the reason for the gap in undoped semiconducting systems is under discussion.

The synthesis and properties of a new class of π-expanded diketopyrrolopyrrole analogs and conjugated polymers

2019 ◽  
Vol 6 (16) ◽  
pp. 2974-2980 ◽  
Author(s):  
Yazhou Wang ◽  
Yuchun Xu ◽  
Mahesh Kumar Ravva ◽  
Yaping Yu ◽  
Mingfei Xiao ◽  
...  
Keyword(s):  
Conjugated Polymers ◽  
Band Gaps ◽  
New Class

A new class of π-expanded diketopyrrolopyrrole analogs has been incorporated into novel alternating conjugated polymers with very low band gaps.

Effect of fluorination and symmetry on the properties of polymeric photovoltaic materials based on an asymmetric building block

RSC Advances ◽  
2016 ◽  
Vol 6 (93) ◽  
pp. 90051-90060 ◽  
Author(s):  
Xiaochen Wang ◽  
Ailing Tang ◽  
Yu Chen ◽  
Asif Mahmood ◽  
Jianhui Hou ◽  
...  
Keyword(s):  
Conjugated Polymers ◽  
Building Block ◽  
Energy Levels ◽  
Building Blocks ◽  
Asymmetric Building ◽  
Photovoltaic Materials

Introducing fluorine on benzothiadiazole unit significantly influenced the properties of DTPa and BTs based conjugated polymers by tuning the energy levels and symmetry of the building blocks.

Organic Syntheses and Characteristics of Novel Conjugated Polymers for AMOLEDs

2010 ◽  
Vol 75 ◽  
pp. 91-96
Author(s):  
Su Hee Song ◽  
Young Eup Jin ◽  
Joo Young Shim ◽  
Kwang Hee Lee ◽  
Hong Suk Suh
Keyword(s):  
Conjugated Polymers ◽  
Blue Emission ◽  
Wavelength Region ◽  
Emission Spectra ◽  
Polymer Backbone ◽  
Light Emitting ◽  
Long Wavelength ◽  
New Class ◽  
Solid Thin Films ◽  
Pl Emission

Conjugated polymers with a stabilized blue emission are of importance for the realization of large flat panel AMOLED displays using polymer light-emitting diodes. Several novel conjugated polymers using newly developed templates for the stabilized EL emission are reported. Poly(2,6-(4,4-bis(2-ethylhexyl)-4H-cyclopenta[def]phenanthrene)) (PCPP) is a new class of blue-emitting polymers utilizing a new back-bone. This material emits a efficient blue EL without exhibiting any unwanted peak in the long wavelength region (green region) even after prolonged annealing at an elevated temperature of 150oC in air, or operation of the device. New electroluminescent spiro-PCPPs, poly((2,6-(3',6'-bis(2-ethylhexyloxy)-spiro(4H-cyclopenta[def] phenanthrene-4,9'-[9H]fluorene)))-alt-(2,6-(4,4-bis(2-ethylhexyl)-4H-cyclopenta[def]phenanthrene))) (spiro-PCPP-alt-PCPP) and poly((2,6-(3',6'-bis(2-ethylhexyloxy)-spiro(4H-cyclopenta[def] phenanthrene-4,9'-[9H]fluorene)))-alt-(1,4-phenylene)) (spiro-PCPPP), have been synthesized by the Suzuki polymerization. The PL emission spectra of polymers in THF solution show a same maximum peak at 397 nm. The maximum PL emission spectra of polymers appeared at around 463 and 456 nm in solid state, respectively. The PL spectra in solid thin films show more red-shifted over 60 nm than solution conditions. The blue emissions at 400-409 nm for the π–π* transitions of conjugated polymer backbone are almost completely quenched or decreased.

A new class of organic photovoltaic materials: poly(rod-coil) polymers having alternative conjugated and non-conjugated segments

2014 ◽  
Vol 50 (57) ◽  
pp. 7720-7722 ◽  
Author(s):  
Hong-Jiao Li ◽  
Jin-Tu Wang ◽  
Chong-Yu Mei ◽  
Wei-Shi Li
Keyword(s):  
Organic Photovoltaic ◽  
New Class ◽  
Photovoltaic Materials ◽  
Organic Photovoltaic Materials

A new class of organic photovoltaic donor materials, poly(rod-coil) polymers, has been proposed and studied.

Synthesis, photophysical and photovoltaic properties of a new class of two-dimensional conjugated polymers containing donor–acceptor chromophores as pendant groups

2013 ◽  
Vol 4 (11) ◽  
pp. 3333 ◽  
Author(s):  
Yu-Ying Lai ◽  
Yen-Ju Cheng ◽  
Chiu-Hsiang Chen ◽  
Sheng-Wen Cheng ◽  
Fong-Yi Cao ◽  
...  
Keyword(s):  
Conjugated Polymers ◽  
Two Dimensional ◽  
Photovoltaic Properties ◽  
New Class ◽  
Donor Acceptor

First-principles prediction of a new class of photovoltaic materials: I-III-IV2-V4 phosphides

2012 ◽  
Vol 112 (5) ◽  
pp. 053102 ◽  
Author(s):  
Jiahong Ma ◽  
Shiyuan Lin ◽  
Guanghan Fan ◽  
Guangrui Yao ◽  
Yu-Jun Zhao
Keyword(s):  
First Principles ◽  
New Class ◽  
Photovoltaic Materials

scholarly journals 1D Coordination π–d Conjugated Polymers with Distinct Structures Defined by the Choice of the Transition Metal: Towards a New Class of Antiaromatic Macrocycles

2020 ◽  
Vol 133 (1) ◽  
pp. 443-449
Author(s):  
Vijai M. Santhini ◽  
Christian Wäckerlin ◽  
Aleš Cahlík ◽  
Martin Ondráček ◽  
Simon Pascal ◽  
...  
Keyword(s):  
Transition Metal ◽  
Conjugated Polymers ◽  
New Class
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