Donor-acceptor (D-A) terpolymers based on alkyl-DPP and t -BocDPP moieties for polymer solar cells

Ullah, Fateh; Sun, Qiang; Yang, Weitao; Shah, Muhammad Naeem; Zhang, Zhongqiang; Chen, Hongzheng; Li, Chang‐Zhi

doi:10.1016/j.cclet.2017.08.009

Cited by 10 publications

(4 citation statements)

References 41 publications

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“… Finally, three copolymers were synthesized by classic Stille-coupling polymerization as depicted in Scheme . Polymerization was performed in toluene at 110 °C under N 2 atmosphere for 36 h, and crude polymers were precipitated out in methanol and collected by filtration and subjected to Soxhlet extraction by methanol, acetone, hexane, and chloroform, the same as described in previous works. − The molecular weights were determined by using high-temperature gel permeation chromatography (GPC), using 1,2,4-trichlorobenzene (TCB) as the eluent and monodispersed polystyrene as the internal standard (Table ).…”

Section: Resultsmentioning

confidence: 99%

Influence of Bridging Groups on the Photovoltaic Properties of Wide-Bandgap Poly(BDTT-alt-BDD)s

Rehman

Liu

Lau

et al. 2018

ACS Appl. Mater. Interfaces

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To further advance polymer solar cells requires the fast evolution of π-conjugated materials as well as a better understanding of their structure−property relationships. Herein, we present three copolymers (PT1, PT2, PT3) made through tuning π-bridges (without any group, thiophene, and 3-hexylthieno [3,2-b]thiophene) between electron-rich (D: BDTT) and -deficient (A: BDD) units. The comparative studies reveal the unique correlation that the tune of π-bridge on the polymeric backbone governs the solid stacking and photovoltaic properties of resultant poly(BDTTalt-BDD)s, which provide an effective way to deliver new and efficient polymer with feasible processability. That is, polymers with either twist zigzag backbone (PT1) or with linear coplanar backbone (PT2) result in inferior photovoltaic performance upon simple solution casting. Among them, PT3 with extended zigzag backbone and planar segments exhibits suitable processability and retains good efficiency in nonfullerene solar cells through a single-solvent cast without involving tedious treatments. This work illustrates that the tuning of the D−π−A polymer backbone facilitates efficient materials with feasible processability, promising for scale-up fabrication.

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Section: Resultsmentioning

confidence: 99%

Influence of Bridging Groups on the Photovoltaic Properties of Wide-Bandgap Poly(BDTT-alt-BDD)s

Rehman

Liu

Lau

et al. 2018

ACS Appl. Mater. Interfaces

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“…Random copolymers with multiple building chromophores is a practicable method to tune optoelectronic properties of CPs, − molecular orientation, and domain sizes in blended films, hence sometime yielding an enhanced PCE in random CP bases PSCs. Although ternary solar cells, in some cases, could achieve similar results by the formation of alloy phases, the morphology control and device fabrication are complex.…”

Section: Conjugated Polymers In Nonfullerene Solar Cellsmentioning

confidence: 99%

Conjugated Polymers for Photon-to-Electron and Photon-to-Fuel Conversions

Yan

Ullah

et al. 2020

ACS Appl. Polym. Mater.

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Solar energy conversion has nowadays attracted research interests of the community, wherein conjugated polymers (CPs) become a class of workhorses on photon-to-electron and photon-to-fuel conversion studies. In recent years, exciting breakthroughs have been made in these multi-interdisciplinary fields, with the assistance of the intrinsic flexibilities on tuning optoelectronic, mechanical and structural properties of CPs. In this review, we summarize the recent notable development of CPs in polymer solar cells, perovskite solar cells, and photocatalysts, wherein CPs function well as light-capture and conversion components for polymer solar cells and photocatalysts as well as charge extraction materials for perovskite solar cells. By analyzing the principles, status, and structural-properties of these areas, we outline the design strategies and perspectives of CPs for further advancing solar energy conversions.

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“…So far, TDPP and PyDPP have been employed in conjunction with other acceptors for the development of terpolymer systems, and OSCs developed using these materials have exhibited PCEs of more than 8%. 23–28 However, since TTDPP-based alternating copolymers exhibit poor absorption in the short wavelength region (UV and blue regions), acceptors with complementing absorption are attractive partners in a terpolymer strategy. Previous research has shown that high-bandgap copolymers containing a fluorinated benzotriazole (FTAZ) moiety absorb strongly between 400 nm and 650 nm.…”

Section: Introductionmentioning

confidence: 99%

Unveiling the thermal stability of diketopyrrolopyrrole-based terpolymers: a key element for enhanced efficiency and stability of organic solar cells

Nchinda,

Genene,

Mammo

et al. 2024

New J. Chem.

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Donor-acceptor (D-A) terpolymers based on alkyl-DPP and t -BocDPP moieties for polymer solar cells

Cited by 10 publications

References 41 publications

Influence of Bridging Groups on the Photovoltaic Properties of Wide-Bandgap Poly(BDTT-alt-BDD)s

Influence of Bridging Groups on the Photovoltaic Properties of Wide-Bandgap Poly(BDTT-alt-BDD)s

Conjugated Polymers for Photon-to-Electron and Photon-to-Fuel Conversions

Unveiling the thermal stability of diketopyrrolopyrrole-based terpolymers: a key element for enhanced efficiency and stability of organic solar cells

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