Deep HOMO polymers comprising anthracene units for bulk heterojunction solar cells

Kim, Hyo Yeol; Choi, Min Hee; Han, Yong Woon; Moon, Doo Kyung; Haw, Jung Rim

doi:10.1016/j.jiec.2015.10.010

Cited by 14 publications

(1 citation statement)

References 45 publications

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“…Moreover, anthracene exhibits a low HOMO energy level which allows for reaching high open voltage current (Voc) in the corresponding devices [18].…”

Section: Introductionmentioning

confidence: 99%

New Π-Conjugated Oligomers Based on Pyrrole and Anthracene for Applications in Organic Electronics Devices

Kacimi

Chemek²,

Bourass³

et al. 2022

SSRN Journal

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“…Moreover, anthracene exhibits a low HOMO energy level which allows for reaching high open voltage current (Voc) in the corresponding devices [18].…”

Section: Introductionmentioning

confidence: 99%

New Π-Conjugated Oligomers Based on Pyrrole and Anthracene for Applications in Organic Electronics Devices

Kacimi

Chemek²,

Bourass³

et al. 2022

SSRN Journal

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Synthesis and Characterization of Poly(3‐Hexylthiophene) for Organic Solar Cells

Santos

Arias

Marques

et al. 2019

Macromolecular Symposia

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Poly(3‐hexylthiophene) (P3HT) has been successfully synthesized through McCullough route. The influence of nickel catalyst content on molar mass (Mn and Mw), dispersity (Đ), regioregularity (rr), as well as optical, thermal, and morphological properties is systematically investigated. The results evidence that polymer dispersities are narrow, Mn and rr values decrease with the augmentation of catalyst content. Polymer solution in different solvents (chloroform and dichlorobenzene) show similar optical band gaps. Solid state band gap of obtained material is lower than in solution, which confirms the reorganization of polymer chains in solid state. Both polymers show good thermal stability and their morphologies are tightly influenced by the monomer/catalyst ratio in the synthesis. Two main morphologies are obtained, for the higher molar mass P3HT it is nodule‐like, while the lower Mn presented rod form. The fore polymer combined with PCMB results in lower root mean square (RMS) indicating smoother morphology, which is more appropriate for solar cells application.

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A 3‐Fluoro‐4‐hexylthiophene‐Based Wide Bandgap Donor Polymer for 10.9% Efficiency Eco‐Friendly Nonfullerene Organic Solar Cells

Jeon

Choi

et al. 2019

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Nonfullerene organic solar cells (NFOSCs) are attracting increasing academic and industrial interest due to their potential uses for flexible and lightweight products using low‐cost roll‐to‐roll technology. In this work, two wide bandgap (WBG) polymers, namely P(fTh‐BDT)‐C6 and P(fTh‐2DBDT)‐C6, are designed and synthesized using benzodithiophene (BDT) derivatives. Good oxidation stability and high solubility are achieved by simultaneously introducing fluorine and alkyl chains to a single thiophene (Th) unit. Solid P(fTh‐2DBDT)‐C6 films present WBG optical absorption, suitable frontier orbital levels, and strong π–π stacking effects. In addition, P(fTh‐2DBDT)‐C6 exhibits good solubility in both halogenated and nonhalogenated solvents, suggesting its suitability as donor polymer for NFOSCs. The P(fTh‐2DBDT)‐C6:3,9‐bis(2‐methylene‐(3‐(1,1‐dicyanomethylene)‐indanone))‐5,5,11,11‐tetrakis(5‐hexylthienyl)‐dithieno[2,3‐d:2′,3′‐d′]‐s‐indaceno[1,2‐b:5,6‐b′]dithiophene (ITIC‐Th) based device processed using chlorobenzene/1,8‐diiodooctane (CB/DIO) exhibits a remarkably high power conversion efficiency (PCE) of 11.1%. Moreover, P(fTh‐2DBDT)‐C6:ITIC‐Th reaches a high PCE of 10.9% when processed using eco‐friendly solvents, such as o‐xylene/diphenyl ether (DPE). The cell processed using CB/DIO maintains 100% efficiency after 1272 h, while that processed using o‐xylene/DPE presents a 101% increase in efficiency after 768 h and excellent long‐term stability. The results of this study demonstrate that simultaneous fluorination and alkylation are effective methods for designing donor polymers appropriate for high‐performance NFOSCs.

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Deep HOMO polymers comprising anthracene units for bulk heterojunction solar cells

Cited by 14 publications

References 45 publications

New Π-Conjugated Oligomers Based on Pyrrole and Anthracene for Applications in Organic Electronics Devices

New Π-Conjugated Oligomers Based on Pyrrole and Anthracene for Applications in Organic Electronics Devices

Synthesis and Characterization of Poly(3‐Hexylthiophene) for Organic Solar Cells

A 3‐Fluoro‐4‐hexylthiophene‐Based Wide Bandgap Donor Polymer for 10.9% Efficiency Eco‐Friendly Nonfullerene Organic Solar Cells

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