Modulating the optical properties and functions of organic molecules through polymerization DOI Open Access
Wenbo Wu, Bin Liu

Materials Horizons, Journal Year: 2021, Volume and Issue: 9(1), P. 99 - 111

Published: Aug. 5, 2021

Organic functional materials with advanced optical properties have attracted much attention due to their broad applications, such as in light-emitting diodes, solar cells, anti-counterfeiting, photocatalysis, and even disease diagnosis treatment. Recent research has revealed that many of organic molecules can be improved through simple polymerization. In this review, we discuss the phenomenon, mechanism, impact polymerization on materials, including polymerization-induced spectral shift, polymerization-enhanced photosensitization, two-photon absorption, photocatalytic efficiency, room temperature phosphorescence, thermally activated delayed fluorescence, emission using specific examples different applications. The new opportunities arising from designing high performance are summarized future perspective.

Language: Английский

Organic solar cells using oligomer acceptors for improved stability and efficiency DOI
Youcai Liang, Difei Zhang,

Zerun Wu

et al.

Nature Energy, Journal Year: 2022, Volume and Issue: 7(12), P. 1180 - 1190

Published: Nov. 10, 2022

Language: Английский

Citations

271
Recent advances in n-type and ambipolar organic semiconductors and their multi-functional applications DOI
Yihan Zhang,

Yongshuai Wang,

Can Gao

et al.

Chemical Society Reviews, Journal Year: 2023, Volume and Issue: 52(4), P. 1331 - 1381

Published: Jan. 1, 2023

A comprehensive summary and deep insights into the synthesis, characterization multi-functional device applications of n-type ambipolar organic semiconductors are provided in this study.

Language: Английский

Citations

155
Application of Triplet–Triplet Annihilation Upconversion in Organic Optoelectronic Devices: Advances and Perspectives DOI Creative Commons
Can Gao, Wallace W. H. Wong, Zhengsheng Qin

et al.

Advanced Materials, Journal Year: 2021, Volume and Issue: 33(45)

Published: Oct. 1, 2021

Organic semiconductor materials have been widely used in various optoelectronic devices due to their rich optical and/or electrical properties, which are highly related excited states. Therefore, how manage and utilize the states organic semiconductors is essential for realization of high-performance devices. Triplet-triplet annihilation (TTA) upconversion a unique process converting two non-emissive triplet excitons one singlet exciton with higher energy. Efficient optical-to-electrical can be realized by harvesting sub-bandgap photons through TTA-based upconversion. In electrical-to-optical devices, triplets generated after combination electrons holes also efficiently utilized via TTA, resulted high internal conversion efficiency 62.5%. Currently, many interesting explorations significant advances demonstrated these fields. this review, comprehensive summary intriguing on developing efficient TTA application systematically given along some discussions. Finally, key challenges perspectives systems further improvement other research directions provided. This review hopes provide valuable guidelines future advancement optoelectronics.

Language: Английский

Citations

105
Batch-Reproducible and Thickness-Insensitive Mesopolymer Zwitterion Interlayers for Organic Solar Cells DOI
Chenghao Zhu, Jing Tian, Wenxu Liu

et al.

ACS Energy Letters, Journal Year: 2023, Volume and Issue: 8(6), P. 2689 - 2698

Published: May 23, 2023

Zwitterionic polymers or small molecules are a class of widely used interlayer materials in organic solar cells (OSCs). It is challenging to develop such that combine good film-forming property, high batch-to-batch reproducibility, and broad thickness processing window device applications. Herein, we designed synthesized two self-doped conjugated mesopolymer zwitterions (CMZs), namely, MT2PDIMz MT2PDINz (PDI = perylene-diimide, M mesopolymer, T2 dithiophene, Mz imidazolium zwitterion, Nz ammonium zwitterion). Both show processability effectively reduce the work function metal electrodes. The substitution cations with on side-chains can further modulate solution assembly self-doping effect CMZs, enabling improved interfacial compatibility active layers higher electron mobility MT2PDIMz. versatility CMZs interlayers for OSCs confirmed several binary ternary layers, affording efficiencies up 19.01%. Notably, over 98% optimal efficiency maintained as increases 40 nm reproducibility.

Language: Английский

Citations

43
General room-temperature Suzuki–Miyaura polymerization for organic electronics DOI

Haigen Xiong,

Qijie Lin,

Yu Lu

et al.

Nature Materials, Journal Year: 2024, Volume and Issue: 23(5), P. 695 - 702

Published: Jan. 29, 2024

Language: Английский

Citations

27
High Mobility Emissive Organic Semiconductors for Optoelectronic Devices DOI
Ziyi Xie, Dan Liu, Can Gao

et al.

Journal of the American Chemical Society, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 10, 2025

High mobility emissive organic semiconductors (HMEOSCs) are a kind of unique semiconducting material that simultaneously integrates high charge carrier and strong emission features, which not only crucial for overcoming the performance bottlenecks current optoelectronic devices but also important constructing high-density integrated devices/circuits potential smart display technologies electrically pumped lasers. However, development HMEOSCs is facing great challenges due to mutually exclusive requirements molecular structures packing modes between solid-state emission. Encouragingly, considerable advances on have been made with continuous efforts, successful integration these two properties within individual currently presents promising research direction in electronics. Representative progress, including design HMEOSCs, exploration their applications photoelectric conversion electroluminescent devices, especially photovoltaic cells, light-emitting diodes, transistors, summarized timely manner. The developing other related lasers, spin transistors discussed. We hope this perspective will boost rapid new mechanism understanding wide different fields entering stage.

Language: Английский

Citations

4
Organic Laser Molecule with High Mobility, High Photoluminescence Quantum Yield, and Deep-Blue Lasing Characteristics DOI
Dan Liu,

Jianbo De,

Haikuo Gao

et al.

Journal of the American Chemical Society, Journal Year: 2020, Volume and Issue: 142(13), P. 6332 - 6339

Published: March 18, 2020

Here, we design and synthesize an organic laser molecule, 2,7-diphenyl-9H-fluorene (LD-1), which has state-of-the-art integrated optoelectronic properties with a high mobility of 0.25 cm2 V-1 s-1, photoluminescence quantum yield 60.3%, superior deep-blue characteristics (low threshold Pth = 71 μJ cm-2 53 quality factor (Q) ∼3100 ∼2700 at emission peaks 390 410 nm, respectively). Organic light-emitting transistors based on LD-1 are for the first time demonstrated obvious electroluminescent gate tunable features. This work opens door new class semiconductor molecules is critical optical applications.

Language: Английский

Citations

131
Design strategies for improving the crystallinity of covalent organic frameworks and conjugated polymers: a review DOI Open Access
Jie Yang, Fangyuan Kang, Xiang Wang

et al.

Materials Horizons, Journal Year: 2021, Volume and Issue: 9(1), P. 121 - 146

Published: July 19, 2021

This review summarizes the strategies for improving crystallinity of covalent organic frameworks and conjugated polymers. The include planarity modulation, fluorine substitution, side chain engineering, so on.

Language: Английский

Citations

101
Challenges and Emerging Opportunities in High‐Mobility and Low‐Energy‐Consumption Organic Field‐Effect Transistors DOI
Cong Wang, Xiaotao Zhang,

Huanli Dong

et al.

Advanced Energy Materials, Journal Year: 2020, Volume and Issue: 10(29)

Published: June 24, 2020

Abstract Organic field‐effect transistors (OFETs) are the basic elements of organic circuits towards flexible, printable, and wearable electronics. Low‐energy‐consumption OFETs with high mobility prerequisite for practical applications. After 30 years development, have progressed rapidly, from materials to devices, individual device small‐ medium‐scale integration. Here, a brief retrospective OFETs' development over past decades, emerging opportunities challenges physics, multifunctional integrated application presented.

Language: Английский

Citations

81
Semiconducting Polymers Based on Isoindigo and Its Derivatives: Synthetic Tactics, Structural Modifications, and Applications DOI

Xuyang Wei,

Weifeng Zhang, Gui Yu

et al.

Advanced Functional Materials, Journal Year: 2021, Volume and Issue: 31(21)

Published: March 5, 2021

Abstract The past few decades have witnessed the tremendous development of semiconducting polymers in electronic applications, which is inextricably related to diversity polymer structure. change structure significantly influences packing, thin film morphology, and other optoelectronic properties, thus meeting need for different device applications. With synthetic chemistry theoretical computation, many high‐performance building blocks emerged. Among them, isoindigo‐ isoindigo derivatives‐based are widely studied various fields organic electronics, them showed excellent properties. This review summarizes tactics isoindigo‐derived monomers polymers. Moreover, structural modification strategies discussed detail, including derivatives regulation type. Using polymers, such as field‐effect transistors, chemical sensors, electrochemical phototransistors, photovoltaics, thermoelectrics, spin valves, biophotonic introduced illustrate important effects modification.

Language: Английский

Citations

80