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Dakang Ding

As seen in: Chemistry World
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Articles by Dakang Ding

Novel naphthyl side-chained benzodithiophene polymer for efficient photovoltaic cells with a high fill factor of 75%

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By Dakang Ding, Jiuxing Wang, Feng LI, Zurong Du
| Royal Society of Chemistry Verified
To study which strategy (extending side chain ?-conjugation with single-bonded or fused aromatic rings) is more effective in improving the photovoltaic properties of benzodithiophene (BDT)-based polymer, naphthyl (NP) and biphenyl (BP) units were introduced to the BDT core as conjugated side chains, respectively. Two polymers PBDTNP-DTBO and PBDTB P-DTBO based on NP or BP-substituted BDT and 5,6-bis(octyloxy)-4,7-di(thiophen-2-yl)benzo[c][1,2,5]oxadiazole (DTBO) were designed.
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Extending Two-Dimensional π-Conjugation Length by Introducing the Alkoxybiphenyl unit for Efficient Benzodithiophene based Photovoltaic Polymer

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By Dakang Ding, Weiye Chen, Jiuxing Wang, Meng Qiu
| Chemistry World Verified
A novel monomer alkoxybiphenyl-substituted benzodithiophene (BDTBP) was synthesized and used as the donor to construct a donor-acceptor copolymer PBDTBP-DTffBT with 4,7-di((4-(2-ethylhexyl)-2-thienyl)-5,6-difluoro-2,1,3-benzothiadiazole (DTffBT) as the acceptor unit. Compared with the corresponding polymer PBDTP-DTffBT based on alkoxyphenyl-substituted BDT, PBDTBP-DTffBT exhibits red-shifted UV-vis absorption spectra due to extended π-conjugation structure.
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Fluorine-induced high-performance narrow bandgap polymer based on thiadiazolo[3,4-c]pyridine for photovoltaic application

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By Jiuxing Wang, Xichang Bao, Dakang Ding
| Chemistry World Verified
Thiadiazolo[3,4-c]pyridine (PT) has great potential in constructing high-performance narrow bandgap (NBG) photovoltaic polymers. But to date the best power conversion efficiencies (PCEs) for PT-containing polymers are only around 6%. Herein we report two PT-containing NBG polymers PDTPT-2T and PDTPT-2TF based on 2,2'-bithiophene (2T) and 3,3'-difluoro-2,2'-bithiophene (2TF), respectively. The effects of fluorine substituent on optoelectronic properties are thoroughly investigated.
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