Synthesis and Photovoltaic Properties of a Novel Low Band Gap Polymer Based on N-Substituted Dithieno[3,2-<i>b</i>:2′,3′-<i>d</i>]pyrrole

Zhou, Erjun; Nakamura, Mihoko; Nishizawa, Takeshi; Zhang, Yue; Wei, Qingshuo; Tajima, Kazuo; Yang, Chunhe; Hashimoto, Kazuhito

doi:10.1021/ma802052w

Cited by 227 publications

(168 citation statements)

References 32 publications

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“…The highest occupied molecular orbitals (HOMOs) of the polymers were delocalized within the entire range of molecules and the lowest unoccupied molecular orbitals (LUMOs) were localized primarily on the acceptor units, as seen in similar D-A polymers [18,25]. The estimated energies for polymers were obtained by extrapolation to n = ∞, as shown in Figure 2.…”

Section: Computational Chemistrymentioning

confidence: 97%

Synthesis of Narrow Bandgap Polymers based on Benzobis(thiadiazole) and their Application to Organic Transistor Devices

Mamada

Uemura

Teraoka

et al. 2014

J. Photopol. Sci. Technol.

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Two newly developed narrow bandgap polymers containing benzobis(thiadiazole) (BBT) have been synthesized using the Stille coupling reaction. The polymers showed absorption in the near infrared region due to strong charge-transfer interactions in the donor-acceptor (D-A) units, suggesting a rigid planarized structure. Although both the HOMO-LUMO levels of the polymers lie close to the work function of gold electrodes, a BBT-quaterthiophene polymer showed only p-type semiconducting behavior. In addition, the dominant charge-carrier type is holes even in BBT-thiazole-thiophene polymers, which consists mainly of acceptor units, and indicates that the thiophene ring in these polymers has a strong influence on the charge transport properties.

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Section: Computational Chemistrymentioning

confidence: 97%

Synthesis of Narrow Bandgap Polymers based on Benzobis(thiadiazole) and their Application to Organic Transistor Devices

Mamada

Uemura

Teraoka

et al. 2014

J. Photopol. Sci. Technol.

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“…119 Several groups have synthesized D-A copolymers by bridging the BDT and the benzothiadiazole acceptor through a conjugated moiety such as thiophene, alkylthiophene, and alkoxythiophene. [111][112][113] A broadening of the absorption spectrum and improved hole mobility were observed for copolymers 47c-47i. Additionally, the alkyl/alkoxy groups enhanced the solubility of the D-A copolymers, resulting in higher molecular weights.…”

Section: à2mentioning

confidence: 99%

Donor–acceptor semiconducting polymers for organic solar cells

Kularatne

Magurudeniya

Sista

et al. 2012

J. Polym. Sci. A Polym. Chem.

214

163

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“…[47] 和 P15 [48] , 但是性能反而有所下降. 同样, P16 [49] 和 P13 相比, 链节单元多两个噻吩基团, 但性能类似. 一般, 共轭主链上各相邻芳环之间, 由于位阻效应, 存在一定的二面角, 而梯形结构则可强制将它们保持在相同平面内, 从而提高它们之间的共轭程度.…”

Section: 窄带隙聚合物给体材料unclassified

Progress in Polymeric Electron-Donating Materials for Organic Solar Cells

Ye¹,

Li²,

Li³

2012

Chin. J. Org. Chem.

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Organic solar cells (OSCs) have attracted an extensive attention due to their light-weight, low cost and flexible features. Exploitation of novel polymeric donating materials is one of the mainstreams in the field. To date, a variety of conjugated polymers with excellent electron-donating properties have been developed. Based on these materials, power conversion efficiency of OSCs has reached to 9%. This review classifies these materials based on the chemical structures of the repeating units, and summarizes their progress accordingly. A number of representative materials, which have received much attention, are highlighted from the aspects of designing strategy, properties, device fabrication and performance. It is anticipated to penetrate more deeply the basic relationships among the chemical structure-packing structure-property, which could provide valuable information for the future materials exploitation.

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Synthesis and Photovoltaic Properties of a Novel Low Band Gap Polymer Based on N-Substituted Dithieno[3,2-b:2′,3′-d]pyrrole

Cited by 227 publications

References 32 publications

Synthesis of Narrow Bandgap Polymers based on Benzobis(thiadiazole) and their Application to Organic Transistor Devices

Synthesis of Narrow Bandgap Polymers based on Benzobis(thiadiazole) and their Application to Organic Transistor Devices

Donor–acceptor semiconducting polymers for organic solar cells

Progress in Polymeric Electron-Donating Materials for Organic Solar Cells

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