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Multilayered organic semiconductors for high performance optoelectronic stimulation of cells

Nano Research 2023年第4期16卷 5809-5816页

作者： Aleksandr Markov Alexander Gerasimenko Annie-Kermen Boromangnaeva Sofia Shashova Elena Iusupovskaia Ulyana Kurilova Vita Nikitina Irina Suetina Marina Mezentseva Mikhail Savelyev Peter Timashev Dmitry Telyshev Xing-Jie Liang Institute for Bionic Technologies and Engineering I.M.Sechenov First Moscow State Medical UniversityMoscow 119991Russia Institute of Biomedical Systems National Research University of Electronic TechnologyZelenogradMoscow 124498Russia Chemistry Department Lomonosov Moscow State UniversityLeninskie Gory1/3Moscow 119991Russia Ivanovsky Institute of Virology N.F.Gamaleya National Center of Epidemiology and MicrobiologyMoscow 123098Russia World-Class Research Center“Digital Biodesign and Personalized Healthcare” I.M.Sechenov First Moscow State Medical UniversityMoscow 119991Russia Laboratory of Clinical Smart Nanotechnologies I.M.Sechenov First Moscow State Medical UniversityMoscow 119991Russia Institute for Regenerative Medicine I.M.Sechenov First Moscow State Medical UniversityMoscow 119991Russia CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety CAS Center for Excellence in NanoscienceNational Center for Nanoscience and Technology of ChinaBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China

The efficiency of devices for bioelectronic applications,including cell and tissue stimulation,is heavily dependent on the scale and the performance *** miniaturization of stimulation electrodes,achieving a sufficiently high current pulse to elicit action potentials becomes an *** we report on our approach of vertically stacking organic p-n junctions to create highlyefficient multilayered organic semiconductor(MOS)photostimulation device.A tandem arrangement substantially increases the photovoltage and charge density without sacrificing lateral area,while not exceeding 200-500 nm of *** devices generate 4 times higher voltages and at least double the charge densities over single p-n junction devices,which allow using lower light intensities for *** devices show an outstanding stability in the electrolyte that is extremely important for forthcoming in vivo ***,we have validated MOS devices performance by photostimulating fibroblasts and neuroblasts,and found that using tandem devices leads to more effective action potential *** a result,we obtained up to 4 times enhanced effect in cell growth density using 3 p-n layered *** results corroborate the conclusion that MOS technology not only can achieve parity with state-of-the-art silicon devices,but also can exceed them in miniaturization and performance for biomedical applications.

关键词： bioelectronics organic semiconductors wireless stimulation fibroblasts neuroblastoma cells

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1,2,5,6-Naphthalene Diimides:A Class of Promising Building Blocks for organic semiconductors

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Chinese Journal of Chemistry 2023年第10期41卷 1226-1234页

作者： Zheng Zhao Congwu Ge Xueqian Zhao Jintao Huang Xike Gao Key Laboratory of Synthetic and Self-Assembly Chemistry for organic Functional Molecules Shanghai Institute of Organic ChemistryUniversity of Chinese Academy of SciencesChinese Academy of SciencesShanghai 200032China

organic semiconductors have drawn extensive atten-tion due to their optoelectronic properties and wide applications in organic *** comparison with the popular 1,4,5,8-naphthalene diimides(1,4,5,8-NDIs),the angular-shaped 1,2,5,6-NDIs have exhibited tunable photophysical properties,self-as-sembly behaviors and charge transporting *** to these unique features,1,2,5,6-NDIs show great potential for construction of high performance n-func-tional *** this review,we highlight the recent advances and future prospects of 1,2,5,6-NDI-basedπ-systems in the field of organic optoelectronics,in-cluding molecular design,synthesis,structure-prop-erty relationships as well as the applications in high performance organic field-effect transistors,organic photovoltaics,perovskite solar cells,and so on.

关键词： organic semiconductors Electron acceptors Design and synthesis 1,2,5,6-NDI Structural isomerism Polymer acceptors organic electronics

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Selenium-containing core-expanded naphthalene diimides for high performance n-type organic semiconductors

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Science China Chemistry 2020年第9期63卷 1182-1190页

作者： Wenjie Han Zhongli Wang Yunbin Hu Xiaodi Yang Congwu Ge Xike Gao Key Laboratory of Synthetic and Self-Assembly Chemistry for organic Functional Molecules Centre for Excellence in Molecular SynthesisShanghai Institute of Organic ChemistryUniversity of Chinese Academy of SciencesChinese Academy of SciencesShanghai 200032China Experiment Center for Science and Technology Shanghai University of Traditional Chinese MedicineShanghai 201203China

The incorporation of heavy atoms into molecular backbone is an extremely straightforward strategy for fine-tuning the optoelectronic properties of organic ***,it is rarely studied in n-type small ***,by selenium substitution of NDI3 HU-DTYM2,two Se-decorated core-expanded naphthalene diimides(NDI)derivatives DTYM-NDI3 HUDSYM(1)and NDI3 HU-DSYM2(2)were *** comparison with the reference S-containing compound NDI3 HUDTYM2,the highest occupied molecular orbital(HOMO)and lowest unoccupied molecular orbital(LUMO)energy levels of 1 and 2 were fine-tuned with?HOMO of about 0.2 e V,?LUMO of 0.1 e V and the narrowed HOMO-LUMO *** surprisingly,the as-spun organic thin film transistors(OTFTs)based on 1 and 2 both showedμe,satvalues as high as1.0 cm2 V-1 s-1,which are 2-fold higher than that of NDI3 HU-DTYM2 with the same device structure and measurement *** addition,the single crystal OFET devices based on Se-containing compound NDI2 BO-DSYM2 showed a highμe,satvalue of 1.30 cm2 V-1 *** molecular packing of NDI2 BO-DSYM2 in single crystals(two-dimensional supramolecular structure formed by intermolecular Se···Se interactions)is quite different from that of a S-containing compound NDI-DTYM2(one dimensional supramolecular structure formed by intermolecularπ-πstacking).Therefore,the Se substitution can cause dramatic change about molecular stacking model,giving rise to high n-type OTFT *** results demonstrated an effective strategy of the heavy atom effect for designing novel organic semiconductors.

关键词： organic semiconductors selenium naphthalene diimides organic thin film transistors charge mobility

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Acceptor-Donor-Acceptor Type Small Molecular Low Band Gap organic semiconductors Containing 2-Dicyanomethylen- 3-cya n o-4, 5, 5-t rim ethyl-d i hyd rofu ran

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Chinese Journal of Chemistry 2015年第8期33卷 934-938页

作者： Sanlong Chen Xiaolan Qiao Heping Li Hongxiang Li Key Laboratory of Road Structure and Material of Ministry of Transport (Changsha) Changsha University of Science and Technology Changsha Hunan 410114 China Laboratory of Synthetic and Self-Assembly Chemistry for organic Functional Molecules Shanghai Institute of Organic Chemistry Chinese Academy of Sciences Shanghai 200032 China

Acceptor-donor-acceptor type compounds WI--W3 were designed and synthesized. These compounds had the same donor moiety of 2,6-di（tbiophen-2-yl）dithieno[3,2-b：2＇,3＇-d]thiophene and different acceptor groups of 2-dicyanomethylen-3-cyano-4,5,5-trimethyl-2,5-dihydrofuran （TCF）, dicyanovinyl （DCV） and 3-ethyl-2-thioxothia- zolidin-4-one. Experimental results showed all compounds had high thermal stability and strong absorption in the visible light region. Among them, compound Wl with TCF as acceptor group displayed the lowest LUMO energy level of-3.74 eV and the smallest HOMO-LUMO band gap of 1.74 eV, suggesting the potential applications of TCF unit in low band gap organic semiconductors.

关键词： low band gap compounds organic semiconductors donor-acceptor type conjugated molecules

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In-situ/operando characterization techniques for organic semiconductors and devices

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Journal of semiconductors 2022年第4期43卷 13-23页

作者： Sai Jiang Qinyong Dai Jianhang Guo Yun Li School of Microelectronics and Control Engineering Changzhou UniversityChangzhou 213164China National Laboratory of Solid-State Microstructures School of Electronic Science and EngineeringCollaborative Innovation Center of Advanced MicrostructuresNanjing UniversityNanjing 210093China

The increasing demands of multifunctional organic electronics require advanced organic semiconducting materials to be developed and significant improvements to be made to device performance. Thus, it is necessary to gain an in-depth understanding of the film growth process, electronic states, and dynamic structure-property relationship under realistic operation conditions, which can be obtained by in-situ/operando characterization techniques for organic devices. Here, the up-todate developments in the in-situ/operando optical, scanning probe microscopy, and spectroscopy techniques that are employed for studies of film morphological evolution, crystal structures, semiconductor-electrolyte interface properties, and charge carrier dynamics are described and summarized. These advanced technologies leverage the traditional static characterizations into an in-situ and interactive manipulation of organic semiconducting films and devices without sacrificing the resolution, which facilitates the exploration of the intrinsic structure-property relationship of organic materials and the optimization of organic devices for advanced applications.

关键词： in-situ/operando characterization organic semiconductors structure-property relationship

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Tailoring crystal polymorphs of organic semiconductors towards high-performance field-effect transistors

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Chinese Chemical Letters 2016年第8期27卷 1330-1338,1469页

作者： Yong-Gang Zhen Huan-Li Dong Lang Jiang Wen-Ping Hu Beijing National Laboratory for Molecular Sciences Key Laboratory of Organic Solids Institute of Chemistry Chinese Academy of Sciences Tianjin Key Laboratory of Molecular Optoelectronic Sciences Department of Chemistry School of Sciences Tianjin University & Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)

As a quite ubiquitous phenomenon,crystal polymorph is one of the key issues in the field of organic *** review gives a brief summary to the advances on polymorph control of thin film and single crystal of representative organic semiconductors towards high-performance field-effect ***,the relationship between crystal polymporh and charge transport behaviour has been discussed to shed light on the rational preparation of outstanding organic semiconducting materials with desired crystal polymorph.

关键词： organic semiconductors Crystal polymorphs Crystal engineering Charge transport Field-effect transistors

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Pinning energies of organic semiconductors in high-efficiency organic solar cells

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Journal of semiconductors 2023年第3期44卷 52-61页

作者： Xian’e Li Qilun Zhang Xianjie Liu Mats Fahlman Laboratory of organic Electronics Department of Science and Technology(ITN)Linköping UniversitySE-60174NorrköpingSweden Wallenberg Wood Science Center Department of Science and Technology(ITN)Linköping UniversitySE-60174NorrköpingSweden

With the emergence of new materials for high-efficiency organic solar cells(OSCs),understanding and finetuning the interface energetics become increasingly *** determination of the so-called pinning energies,one of the critical characteristics of the material to predict the energy level alignment(ELA)at either electrode/organic or organic/organic interfaces,are urgently needed for the new ***,pinning energies of a wide variety of newly developed donors and nonfullerene acceptors(NFAs)are measured through ultraviolet photoelectron *** positive pinning energies of the studied donors and the negative pinning energies of NFAs are in the same energy range of 4.3−4.6 eV,which follows the design rules developed for fullerene-based *** ELA for metal/organic and inorganic/organic interfaces follows the predicted behavior for all of the materials *** organic-organic heterojunctions where both the donor and the NFA feature strong intramolecular charge transfer,the pinning energies often underestimate the experimentally obtained interface vacuum level shift,which has consequences for OSC device performance.

关键词： organic semiconductors organic solar cells pinning energies integer charge transfer interface dipoles

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Simultaneous studies of pressure effect on charge transport and photophysical properties in organic semiconductors:A theoretical investigation

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Chinese Chemical Letters 2021年第3期32卷 1233-1236页

作者： Xueying Lu Yajing Sun Zhicheng Zhang Zhigang Shuai Wenping Hu Tianjin Key Laboratory of Molecular Optoelectronic Sciences Department of ChemistrySchool of ScienceTianjin UniversityTianjin 300072China MOE Key Laboratory of organic Optoelectronics and Molecular EngineeringDepartment of ChemistryTsinghua UniversityBeijing 100084China

High-mobility and strong luminescent materials are essential as an important component of organic photodiodes,having received extensive attention in the field of organic *** the conventional chemical synthesis of new molecules,pressure technology,as a flexible and efficient method,can tune the electronic and optical properties ***,the mechanism in organic materials has not been systematically ***,we theoretically predicted the pressure-depended luminescence and charge transport properties of high-performance organic optoelectronic semiconductors,2,6-diphenylanthracene(DPA),by first-principle and multi-scale theoretical calculation *** dispersion-corrected density functional theory(DFT-D)and hybrid quantum mechanics/molecular mechanics(QM/MM)method were used to get the electronic structures and vibration properties under ***,the charge transport and luminescence properties were calculated with the quantum tunneling method and thermal vibration correlation *** found that the pressure could significantly improve the charge transport performance of the DPA single *** the applied pressure increased to 1.86 GPa,the hole mobility could be *** the same time,due to the weak exciton coupling effect and the rigid flat structure,there is neither fluorescence quenching nor obvious emission enhancement *** DPA single crystal possesses a slightly higher fluorescence quantum yield~0.47 under *** work systematically explored the pressure-dependence photoelectric properties and explained the inside ***,we proposed that the exte rnal pressure would be an effective way to improve the photoelectric perfo rmance of organic semiconductors.

关键词： Pressure effect organic semiconductors Charge transport properties Fluorescence quantum yield Density functional theory Multi-scale theoretical calculation

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Greater than 10 cm^(2) V^(−1) s ^(−1) : A breakthrough of organic semiconductors for field-effect transistors

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InfoMat 2021年第6期3卷 613-630页

作者： Peng Hu Xuexia He Hui Jiang School of Physics Northwest UniversityXi'anPeople's Republic of China School of Materials Science and Engineering Shaanxi Normal UniversityXi'anPeople's Republic of China School of Materials Science and Engineering Tianjin UniversityTianjinPeople's Republic of China

organic semiconductors have been receiving intensive attention due to the specific advantages of low-temperature processing ability,low-fabrication cost,flexibility,and so *** charge carrier mobility of higher than 10 cm^(2) V^(−1) s ^(−1)for organic semiconductors is of great importance to be studied since it presents a future promising research direction toward commercial microelectronic *** the significant progress of the discovery of novel organic molecules and the further improvements of device fabrication technology,some organic molecules can break the limit of our knowledge and show very high *** this review,organic polymers and small molecules with mobilities above 10 cm^(2) V^(−1) s ^(−1) are first introduced to provide the readers with a general understanding of the features and characteristics of high-performance organic ***,some important parameters,including the molecular structures,the device configurations,and the performance,are discussed in ***,the clues to obtain high mobility are summarized,and the perspective toward the future possible research directions are also provided.

关键词： mobility OFETs organic semiconductors single crystals

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organic thin-film transistors and related devices in life and health monitoring

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Nano Research 2024年第2期17卷 426-444页

作者： Chenfang Sun Tie Wang Tianjin Key Laboratory of Drug Targeting and Bioimaging Life and Health Intelligent Research InstituteTianjin University of TechnologyTianjin 300384China

The early determination of disease-related biomarkers can significantly improve the survival rate of ***,a series of explorations for new diagnosis technologies,such as optical and electrochemical methods,have been devoted to life and health *** thin-film transistor(OTFT),as a state-of-the-art nano-sensing technology,has attracted significant attention from construction to application owing to the merits of being label-free,low-cost,facial,and rapid detection with multi-parameter ***,interference from non-specific adsorption is inevitable in complex biological samples such as body liquid and exhaled gas,so the reliability and accuracy of the biosensor need to be further improved while ensuring sensitivity,selectivity,and ***,we overviewed the composition,mechanism,and construction strategies of OTFTs for the practical determination of disease-related biomarkers in both body fluids and exhaled *** results show that the realization of bio-inspired applications will come true with the rapid development of high-effective OTFTs and related devices.

关键词： organic thin-film transistors biosensors biomarkers organic bioelectronics organic semiconductors healthcare

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