Tuning the electronic coupling in a low-bandgap donor–acceptor copolymer via the placement of side-chains

2011 ◽  
Vol 134 (11) ◽  
pp. 114901 ◽  
Author(s):  
Philipp M. Oberhumer ◽  
Ya-Shih Huang ◽  
Sylvain Massip ◽  
David T. James ◽  
Guoli Tu ◽  
...  
Keyword(s):  
Electronic Coupling ◽  
Side Chains ◽  
Low Bandgap ◽  
Donor Acceptor

scholarly journals Thermochromic aggregation-induced dual phosphorescence via temperature-dependent sp3-linked donor-acceptor electronic coupling

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Tao Wang ◽  
Zhubin Hu ◽  
Xiancheng Nie ◽  
Linkun Huang ◽  
Miao Hui ◽  
...  
Keyword(s):  
Excited State ◽  
Room Temperature ◽  
Electronic Coupling ◽  
Temperature Dependent ◽  
Molecular Systems ◽  
Donor And Acceptor ◽  
Theoretical Investigations ◽  
Donor Acceptor ◽  
And Control ◽  
Two Temperature

AbstractAggregation-induced emission (AIE) has proven to be a viable strategy to achieve highly efficient room temperature phosphorescence (RTP) in bulk by restricting molecular motions. Here, we show that by utilizing triphenylamine (TPA) as an electronic donor that connects to an acceptor via an sp3 linker, six TPA-based AIE-active RTP luminophores were obtained. Distinct dual phosphorescence bands emitting from largely localized donor and acceptor triplet emitting states could be recorded at lowered temperatures; at room temperature, only a merged RTP band is present. Theoretical investigations reveal that the two temperature-dependent phosphorescence bands both originate from local/global minima from the lowest triplet excited state (T1). The reported molecular construct serves as an intermediary case between a fully conjugated donor-acceptor system and a donor/acceptor binary mix, which may provide important clues on the design and control of high-freedom molecular systems with complex excited-state dynamics.

Low bandgap poly(thienylenemethine) derivatives bearing terarylene moieties in the side chains

2014 ◽  
Vol 5 (24) ◽  
pp. 6977-6989 ◽  
Author(s):  
Sangbum Ahn ◽  
Kazuki Yabumoto ◽  
Yongsoo Jeong ◽  
Kazuo Akagi
Keyword(s):  
Side Chains ◽  
Low Bandgap

Novel low bandgap poly(thienylenemethine) derivatives bearing terphenylene moieties in the side chains were synthesised. The bandgaps were controlled by introducing quinoidal structures into the benzonoidal main chains.

Benzotriazole-based donor–acceptor type semiconducting polymers with different alkyl side chains for photovoltaic devices

2013 ◽  
Vol 108 ◽  
pp. 113-125 ◽  
Author(s):  
Ji-Hoon Kim ◽  
Hee Un Kim ◽  
Chang Eun Song ◽  
In-Nam Kang ◽  
Jin-Kyun Lee ◽  
...  
Keyword(s):  
Semiconducting Polymers ◽  
Side Chains ◽  
Photovoltaic Devices ◽  
Alkyl Side Chains ◽  
Donor Acceptor

A study of the thermoelectric properties of benzo[1,2-b:4,5-b′]dithiophene–based donor–acceptor conjugated polymers

2018 ◽  
Vol 9 (35) ◽  
pp. 4440-4447 ◽  
Author(s):  
Luhai Wang ◽  
Chengjun Pan ◽  
Zhongming Chen ◽  
Xiaoyan Zhou ◽  
Chunmei Gao ◽  
...  
Keyword(s):  
Conjugated Polymers ◽  
Thermoelectric Properties ◽  
Thermoelectric Materials ◽  
Side Chains ◽  
Organic Thermoelectric Materials ◽  
Donor Acceptor

Three benzo[1,2-b:4,5-b′]dithiophene (BDT)-based donor–acceptor (D–A) conjugated polymers with different side chains were designed, synthesized, and investigated as organic thermoelectric materials.

The Synthesis of Novel Oligomer 4,8-Di(4-hexyl-2-thienyl)-2λ4δ2-Benzo[1,2-c;4,5-c’]bis[1,2,5]-Thiadiazole

2012 ◽  
Vol 602-604 ◽  
pp. 696-699
Author(s):  
Xiao Xiao Zhuang ◽  
Xiao Long Lei ◽  
Xiao Xia Sun
Keyword(s):  
Side Chains ◽  
Coupling Reactions ◽  
Low Bandgap ◽  
Palladium Catalyzed ◽  
Efficient Route ◽  
High Yields ◽  
Bandgap Materials

Heterocyclic oligomer based on BBT bearing solubilizing side chains have been synthesized in high yields over six steps from readily available starting materials. This approach offers a much milder, shorter, and more efficient route to BBT derivatives than current methods. This unit can then be used in the synthesis of low bandgap materials via palladium-catalyzed coupling reactions.

Tuning the Donor-Acceptor Strength of Low-Bandgap Platinum-Acetylide Polymers for Near-Infrared Photovoltaic Applications

2011 ◽  
Vol 32 (18) ◽  
pp. 1472-1477 ◽  
Author(s):  
Chuanjiang Qin ◽  
Yingying Fu ◽  
Chung-Hin Chui ◽  
Chi-Wai Kan ◽  
Zhiyuan Xie ◽  
...  
Keyword(s):  
Near Infrared ◽  
Low Bandgap ◽  
Photovoltaic Applications ◽  
Donor Acceptor
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