Yaping Yu

Sun Yat-sen University

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Wan Yue

Sun Yat-sen University

Zhengke Li

Sun Yat-sen University

Iain McCulloch

University of Oxford

Jiayao Duan

Sun Yat-sen University

Hailiang Liao

King Abdullah University of Science and Technology

Junxin Chen

Dalian University of Technology

Liuyuan Lan

Sun Yat-sen University

Yazhou Wang

King Abdullah University of Science and Technology

Cheng Li

Chinese Academy of Sciences

Genming Zhu

Sun Yat-sen University

Cooperative Institutions

Chinese Academy of Sciences

Sun Yat-sen University

University of Chinese Academy of Sciences

Beijing National Laboratory for Molecular Sciences

State Key Laboratory of Optoelectronic Materials and Technology

University of Electronic Science and Technology of China

Institute of Chemistry

King Abdullah University of Science and Technology

Imperial College London

Zhejiang University of Technology

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CCDC 1516163: Experimental Crystal Structure Determination

The Cambridge Structural Database (2017)

Hao Wu Zehua Chen Yaping Yu Lingling Zhao Wei-Na Wu

An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.

10.5517/ccdc.csd.cc1mwphp

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Propylene and butylene glycol: new alternatives to ethylene glycol in conjugated polymers for bioelectronic applications

Materials Horizons (2021)

Maximilian Moser Yazhou Wang Tania C. Hidalgo Hailiang Liao Yaping Yu

Propylene and butylene glycol oligoether chains have been employed as alternatives to ethylene glycol in thiophene based semiconductors for OECTs. Their impact on electrochemical, microstructure, and swelling properties are discussed.

Polyvinyl Alcohol

10.1039/d1mh01889b

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Citations (35)

Diketopyrrolopyrrole Polymers with Thienyl and Thiazolyl Linkers for Application in Field-Effect Transistors and Polymer Solar Cells

ACS Applied Materials & Interfaces (2016)

Yaping Yu Yang Wu Andong Zhang Cheng Li Zheng Tang

Conjugated polymers consisting of diketopyrrolopyrrole (DPP) units have been successfully applied in field-effect transistors (FETs) and polymer solar cells (PSCs), while most of the DPP polymers were designed as symmetric structures containing identical aromatic linkers. In this manuscript, we design a new asymmetric DPP polymer with varied aromatic linkers in the backbone for application in FETs and PSCs. The designation provides the chance to finely adjust the energy levels of conjugated polymers so as to influence the device performance. The asymmetric polymer exhibits highly crystalline properties, high hole mobilities of 3.05 cm2 V–1 s–1 in FETs, and a high efficiency of 5.9% in PSCs with spectra response from 300 to 850 nm. Morphology investigation demonstrates that the asymmetric polymer has a large crystal domain in blended thin films, indicating that the solar cell performance can be further enhanced by optimizing the microphase separation. The study reveals that the asymmetric design via adjusting the aromatic linkers in DPP polymers is a useful route toward flexible electronic devices.

10.1021/acsami.6b06967

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Citations (27)

Donor Functionalization Tuning the N‐Type Performance of Donor–Acceptor Copolymers for Aqueous‐Based Electrochemical Devices

Advanced Functional Materials (2022)

Shengyu Cong Junxin Chen Lewen Wang Liuyuan Lan Yazhou Wang

Abstract In this work, three n‐type donor–acceptor copolymers consisting of glycolated naphthalene tetracarboxylicdiimide (gNDI) coupled with variable donating companion moieties are reported. Using 2,2′‐bis(3,4‐ethylenedioxy)bithiophene, 2,2′‐bithiophene, 3,3′‐difluoro‐2,2′‐bithiophene (FBT), the donating strength of the donor units is systematically functionalized. These copolymers are used as a platform for aqueous‐based electrochemical devices, including energy‐storage devices, electrochromic devices (ECDs), and organic electrochemical transistors (OECTs). It is found that the electrochemical redox stability and electron mobility of copolymers are significantly improved via weakening the electron‐donating strength of donor units. gNDI coupling with FBT (gNDI‐FBT) exhibits a charge‐storage capacity exceeding 190 Fg −1 , which is the highest value reported to date for NDI‐based polymer electrodes in aqueous media. For ECDs, gNDI‐FBT remains 100% of initial electrochromism contrast ( ∆ % T = 20%) up to 1200 s. In addition, gNDI‐FBT outperforms its two analogs in OECTs, including lower threshold voltage (0.19 V), faster response time (45.5 ms), and higher volumetric capacitance (197 F cm −3 ). Moreover, gNDI‐FBT with fluorine atoms leads to the bipolarons delocalization along the polymer backbone and favorable molecular packing for ion–electron transport. Through such weak donor functionalization strategy, this work provides ways for n‐type copolymers tuning to access desirable performance metrics in optical, electrochemical, and bioelectronic applications.

Surface Modification

Acceptor

Electron Mobility

10.1002/adfm.202201821

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Citations (43)

CCDC 2095295: Experimental Crystal Structure Determination

The Cambridge Structural Database (2022)

Ren‐Xiao Liang J.F. Chen Yingying Huang Yaping Yu Han‐Yue Zhang

10.5517/ccdc.csd.cc28bb54

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CCDC 1587278: Experimental Crystal Structure Determination

The Cambridge Structural Database (2018)

Wanwan Wang Yuan Wang Yaping Yu Yu‐Fei Song Wei-Na Wu

10.5517/ccdc.csd.cc1q8pj6

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CCDC 1516162: Experimental Crystal Structure Determination

The Cambridge Structural Database (2017)

Hao Wu Zehua Chen Yaping Yu Lingling Zhao Wei‐Na Wu

10.5517/ccdc.csd.cc1mwpgn

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A perylene bisimide derivative with a LUMO level of −4.56 eV for non-fullerene solar cells

Journal of Materials Chemistry C (2016)

Yaping Yu Fan Yang Yunjing Ji Yonggang Wu Andong Zhang

Conjugated polymers with LUMO levels of −4.00 eV combined with a newly designed perylene bisimide compound with a LUMO level of −4.56 eV were found to have efficient charge transfer and provide power conversion efficiencies up to 1.4% in solar cells.

HOMO/LUMO

Derivative (finance)

10.1039/c6tc01045h

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Citations (23)

Fused Pyrazine‐ and Carbazole‐Containing Azaacenes: Synthesis and Properties

ChemPlusChem (2019)

Hailiang Liao Chengyi Xiao Mahesh Kumar Ravva Liping Yao Yaping Yu

A new family of azaacenes has been designed and synthesized by incorporating the electron-withdrawing sp2 -hybridized nitrogen of pyrazine and electron-donating nitrogen of carbazole in a molecular skeleton. Two different conjugated lengths of 8-ring aza-nonacene and 10-ring aza-undecene have been achieved by an efficient condensation reaction. The unique optoelectronic properties of these molecules were investigated using both experimental and theoretical techniques. The azaacenes show visible-region absorption and near-infrared (NIR) fluorescence. These compounds can serve as hole-transport semiconductors for solution-processed organic field-effect transistors (OFETs). Single-crystal transistor devices of one of the aza-nonacenes exhibit hole charge transport behavior with a hole mobility of 0.07 cm2 /Vs and an on/off current ratio of 1.3x106 .

Pyrazine

Carbazole

Electron Mobility

Organic semiconductor

10.1002/cplu.201900383

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Diketopyrrolopyrrole‐Porphyrin Based Conjugated Polymers for Ambipolar Field‐Effect Transistors

Chemistry - An Asian Journal (2017)

Shichao Zhou Cheng Li Jianqi Zhang Yaping Yu Andong Zhang

Porphyrin-based molecules have been widely used in dye-sensitized solar cells and bulk heterojunction solar cells, but their application in field-effect transistors (FETs) is limited. In this work, two conjugated polymers based on diketopyrrolopyrrole and porphyrin units were developed for FETs. The polymers exhibit extra-low band gap with energy levels close to -4.0 eV and -5.0 eV due to the strong electron-donating and withdrawing ability of porphyrin and diketopyrrolopyrrole. With additionally high crystalline properties, ambipolar charge carrier transports with a hole mobility of 0.1 cm2 V-1 s-1 in FETs were realized in these polymers, representing the highest performance in solution-processed FETs based on porphyrin unit.

Ambipolar diffusion

Electron Mobility

10.1002/asia.201700472

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Citations (11)