A low band gap n-type polymer based on dithienosilole and naphthalene diimide for all-polymer solar cells application

Geng, Yanfang; Huang, Jianming; Tajima, Kazuo; Zeng, Qingdao; Zhou, Erjun

doi:10.1016/j.polymer.2015.03.010

Cited by 21 publications

(16 citation statements)

References 61 publications

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“…Compared with polymer:fullerene systems, all‐PSCs have additional advantages including their tunable chemical and electronic properties, better light‐harvesting ability, superior flexibility in controlling the solution viscosity and improved stability . Significant progress has recently been made in advancing all‐PSCs by carefully selecting polymer donors and acceptors with paired absorption spectra or crystallinity and optimizing the processing conditions . WBG polymers have been widely used as complementary absorbing donor components in all‐polymer systems.…”

Section: The Applications Of Wbg Polymers In Opvsmentioning

confidence: 99%

Recent Advances in Wide‐Bandgap Photovoltaic Polymers

2017

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The past decade has witnessed significant advances in the field of organic solar cells (OSCs). Ongoing improvements in the power conversion efficiency of OSCs have been achieved, which were mainly attributed to the design and synthesis of novel conjugated polymers with different architectures and functional moieties. Among various conjugated polymers, the development of wide-bandgap (WBG) polymers has received less attention than that of low-bandgap and medium-bandgap polymers. Here, we briefly summarize recent advances in WBG polymers and their applications in organic photovoltaic (PV) devices, such as tandem, ternary, and non-fullerene solar cells. Addtionally, we also dissuss the application of high open-circuit voltage tandem solar cells in PV-driven electrochemical water dissociation. We mainly focus on the molecular design strategies, the structure-property correlations, and the photovoltaic performance of these WBG polymers. Finally, we extract empirical regularities and provide invigorating perspectives on the future development of WBG photovoltaic materials.

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Section: The Applications Of Wbg Polymers In Opvsmentioning

confidence: 99%

Recent Advances in Wide‐Bandgap Photovoltaic Polymers

2017

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“…Afterward, they developed a PC‐NDI copolymer by copolymerizing NDI with carbazole (C), and the final polymer of PC‐NDI realized a high PCE of 3.68% with 1% 1,8‐diiodooctane (DIO), due to the large improvement of the crystallinity of PC‐NDI with this solvent additive. Besides, donor units such as dithienosilole (DTS), thienothiophene (TT), DTT, BDT, and TVT were also connected with NDI to construct n‐type polymers and PCEs of 0.70–5.10% were obtained …”

Section: Naphthalene‐diimide‐based Polymer Acceptorsmentioning

confidence: 99%

Aromatic‐Diimide‐Based n‐Type Conjugated Polymers for All‐Polymer Solar Cell Applications

et al. 2018

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All‐polymer solar cells (all‐PSCs) have attracted immense attention in recent years due to their advantages of tunable absorption spectra and electronic energy levels for both donor and acceptor polymers, as well as their superior thermal and mechanical stability. The exploration of the novel n‐type conjugated polymers (CPs), especially based on aromatic diimide (ADI), plays a vital role in the further improvement of power conversion efficiency (PCE) of all‐PSCs. Here, recent progress in structure modification of ADIs including naphthalene diimide (NDI), perylene diimide (PDI), and corresponding derivatives is reviewed, and the structure–property relationships of ADI‐based CPs are revealed.

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“…By replacing the carbon bridging atom with silicon in the CPDT moiety, another NDI‐based polymer 34 was further investigated for improving the main chain stacking as well as optical absorption in the visible region. However, a poor PCE of 0.7 % was attained with a V oc of 0.44 V, J sc of 3.86 mA cm −2 , and FF of 41 % when mixed with a donor polymer D13 in all‐PSC devices . Indacenodithienothiophene (IDT) is a widely used electron‐donating unit for photovoltaic materials, in particular, it is used as the fused central core for constructing small molecular acceptors.…”

Section: Ndi‐based Polymer Semiconductorsmentioning

confidence: 99%

“…However, ap oor PCE of 0.7 %w as attained with a V oc of 0.44 V, J sc of 3.86 mA cm À2 ,a nd FF of 41 %w hen mixed with ad onor polymer D13 in all-PSC devices. [47] Indacenodithienothiophene (IDT) is aw idely used electron-donating unit for photovoltaic materials, in particular,i ti su sed as the fused central core for constructings mall moleculara cceptors. Li and co-workerss ynthesized aN DI-IDT based n-type polymer 35 and investigated its photovoltaicp roperties.W hen mixed with donor polymer D7 b,t he highest PCE of 5.33 %w as achieved with a V oc of 0.93 V, J sc of 9.55 mA cm À2 ,a nd FF of 60.3 %.…”

Section: Introductionmentioning

confidence: 99%

Imide‐Functionalized Polymer Semiconductors

Sun

Wang

et al. 2018

Chemistry A European J

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Imide‐functionalized π‐conjugated polymer semiconductors have received a great deal of interest owing to their unique physicochemical properties and optoelectronic characteristics, including excellent solubility, highly planar backbones, widely tunable band gaps and energy levels of frontier molecular orbitals, and good film morphology. The organic electronics community has witnessed rapid expansion of the materials library and remarkable improvement in device performance recently. This review summarizes the development of imide‐functionalized polymer semiconductors as well as their device performance in organic thin‐film transistors and polymer solar cells, mainly achieved in the past three years. The materials mainly cover naphthalene diimide, perylene diimide, and bithiophene imide, and other imide‐based polymer semiconductors are also discussed. The perspective offers our insights for developing new imide‐functionalized building blocks and polymer semiconductors with optimized optoelectronic properties. We hope that this review will generate more research interest in the community to realize further improved device performance by developing new imide‐functionalized polymer semiconductors.

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A low band gap n-type polymer based on dithienosilole and naphthalene diimide for all-polymer solar cells application

Cited by 21 publications

References 61 publications

Recent Advances in Wide‐Bandgap Photovoltaic Polymers

Recent Advances in Wide‐Bandgap Photovoltaic Polymers

Aromatic‐Diimide‐Based n‐Type Conjugated Polymers for All‐Polymer Solar Cell Applications

Imide‐Functionalized Polymer Semiconductors

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