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Cunin CE, Meacham RF, Lee ER, Roh H, Samal S, Li W, Matthews JR, Zhao Y, He M, Gumyusenge A. Leveraging Insulator's Tacticity in Semiconducting Polymer Blends. ACS APPLIED MATERIALS & INTERFACES 2024; 16:39717-39727. [PMID: 39036945 DOI: 10.1021/acsami.4c06609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/23/2024]
Abstract
Blending conjugated polymers with insulating matrices is often utilized for engineering extrinsic properties in organic electronics. Semiconductor/insulator blends are typically processed to form a uniformly distributed network of conductive domains within the insulating matrix, marrying electronic and physical properties from individual components. Understanding of polymer-polymer interactions in such systems is thus crucial for property co-optimization. One of the commonly overlooked parameters is the structural configuration of the insulator on the resulting properties, especially the electronic properties. This study investigated how the tacticity of the matrix polymer, among other relevant parameters in play, impacts solid state crystallization in semiconductor/matrix blends and hence the resulting charge transport properties. We found an intricate dependence of the film morphology, aggregation behavior, electronic charge transport, and mixed ionic-electronic coupling properties on the insulator's tacticity. Our experimentally iterative approach shows that for a given application, when selecting semiconductor/insulator combinations, the tacticity of the matrix can be leveraged to optimize performance and vary solid-state structure.
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Affiliation(s)
- Camille E Cunin
- Department of Materials Science & Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Rebecca F Meacham
- Department of Materials Science & Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Eric R Lee
- Department of Materials Science & Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Heejung Roh
- Department of Materials Science & Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Sanket Samal
- Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, Indiana 47907, United States
| | - Wenhao Li
- Laboratory of Molecular Materials and Devices, State Key Laboratory of Molecular Engineering of Polymers, Department of Materials Science, Fudan University, Shanghai 200438, China
| | - James R Matthews
- Corning Incorporated, One River Front Plaza, Corning, New York 14831, United States
| | - Yan Zhao
- Laboratory of Molecular Materials and Devices, State Key Laboratory of Molecular Engineering of Polymers, Department of Materials Science, Fudan University, Shanghai 200438, China
| | - Mingqian He
- Corning Incorporated, One River Front Plaza, Corning, New York 14831, United States
| | - Aristide Gumyusenge
- Department of Materials Science & Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
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2
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Kumari P, Hajduk B, Bednarski H, Jarka P, Janeczek H, Łapkowski M. Exploring the Influence of P3HT on PTCA Crystallization and Phase Behavior in Thin Films. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2918. [PMID: 37999272 PMCID: PMC10675274 DOI: 10.3390/nano13222918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 10/30/2023] [Accepted: 11/07/2023] [Indexed: 11/25/2023]
Abstract
The thermal properties and alignment of crystallinity of materials in thin films play crucial roles in the performance and reliability of various devices, especially in the fields of electronics, materials science, and engineering. The slight variations in the molecular packing of the active layer can make considerable differences in the optical and thermal properties. Herein, we aim to investigate the tuning of the physical properties of a blended thin film of n-type small organic molecules of perylene-3,4,9,10-tetracarboxylic acid (PTCA-SMs) with the mixing of the p-type polymer poly(3-hexylthiophene) (P3HT). The resulting thin films exhibit an enhanced surface crystallinity compared to the pristine material, leading to the formation of long crystallites, and these crystallites are thermally stable in the solid state, as confirmed by X-ray diffraction (XRD), atomic force microscopy (AFM), and thermal analysis using variable-temperature spectroscopic ellipsometry (VTSE) and differential scanning calorimetry (DSC). We believe that the crystalline structure of the obtained P3HT/PTCA-SMs blends is a combination of edge-on and face-on orientations, which enable the potential use of this material as an active layer in organic electronics.
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Affiliation(s)
- Pallavi Kumari
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34 Marie Curie-Skłodowska Str., 41-819 Zabrze, Poland; (B.H.); (H.B.); (H.J.); (M.Ł.)
| | - Barbara Hajduk
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34 Marie Curie-Skłodowska Str., 41-819 Zabrze, Poland; (B.H.); (H.B.); (H.J.); (M.Ł.)
| | - Henryk Bednarski
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34 Marie Curie-Skłodowska Str., 41-819 Zabrze, Poland; (B.H.); (H.B.); (H.J.); (M.Ł.)
| | - Paweł Jarka
- Department of Engineering Materials and Biomaterials, Silesian University of Technology, 18a Konarskiego Str., 41-100 Gliwice, Poland;
| | - Henryk Janeczek
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34 Marie Curie-Skłodowska Str., 41-819 Zabrze, Poland; (B.H.); (H.B.); (H.J.); (M.Ł.)
| | - Mieczysław Łapkowski
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34 Marie Curie-Skłodowska Str., 41-819 Zabrze, Poland; (B.H.); (H.B.); (H.J.); (M.Ł.)
- Department of Physical Chemistry and Technology of Polymers, Faculty of Chemistry, Silesian University of Technology, M. Strzody 9, 44-100 Gliwice, Poland
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3
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He Y, Wu D, Zhang X. Bottom-up on-surface synthesis based on click-functionalized peptide bundles. NANOSCALE 2023; 15:8996-9002. [PMID: 37144607 DOI: 10.1039/d3nr01070h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
On-surface synthesis is a modern technique for the preparation of atomically low-dimensional molecular nanostructures. However, most nanomaterials grow horizontally on the surface, and the step-by-step longitudinally controllable covalent bonding reaction on the surface is rarely reported. Here, we successfully achieved bottom-up on-surface synthesis by using coiled-coil homotetrameric peptide bundles called 'bundlemers' as building blocks. Rigid nano-cylindrical bundlemer with two click-reactive functionalities at each end can be grafted vertically onto the surface or another bundlemer with complementary clickable groups by click reaction at one end, thus enabling the longitudinal bottom-up synthesis of rigid rods with an exact number of bundlemers (up to 6) on the surface. Moreover, we can graft linear poly(ethylene glycol) (PEG) to one terminal of rigid rods to obtain rod-PEG hybrid nanostructures that can be released from the surface under specific conditions. Interestingly, rod-PEG nanostructures consisting of different numbers of bundles can self-assemble in water into different nano-hyperstructures. In general, the bottom-up on-surface synthesis strategy presented here can provide a simple and accurate method to manufacture a variety of nanomaterials.
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Affiliation(s)
- Yanmei He
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu, 610064, China.
| | - Dongdong Wu
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu, 610064, China.
- West China School of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Xingdong Zhang
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu, 610064, China.
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4
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Sun L, Li T, Zhou J, Li W, Wu Z, Niu R, Cheng J, Asare‐Yeboah K, He Z. A Green Binary Solvent Method to Control Organic Semiconductor Crystallization. ChemistrySelect 2023. [DOI: 10.1002/slct.202203927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Li Sun
- School of Mechanical and Electrical Engineering Jinling Institute of Technology Nanjing Jiangsu 210014 China
| | - Tianyu Li
- School of Mechanical and Electrical Engineering Jinling Institute of Technology Nanjing Jiangsu 210014 China
| | - Jiajian Zhou
- School of Mechanical and Electrical Engineering Jinling Institute of Technology Nanjing Jiangsu 210014 China
| | - Wenhao Li
- School of Mechanical and Electrical Engineering Jinling Institute of Technology Nanjing Jiangsu 210014 China
| | - Zhongming Wu
- School of Mechanical and Electrical Engineering Jinling Institute of Technology Nanjing Jiangsu 210014 China
| | - Ruikun Niu
- School of Mechanical and Electrical Engineering Jinling Institute of Technology Nanjing Jiangsu 210014 China
| | - Jinxiang Cheng
- School of Mechanical and Electrical Engineering Jinling Institute of Technology Nanjing Jiangsu 210014 China
| | - Kyeiwaa Asare‐Yeboah
- Department of Electrical and Computer Engineering Penn State Behrend Erie PA 16563 USA
| | - Zhengran He
- Department of Electrical and Computer Engineering The University of Alabama Tuscaloosa AL 35487 USA
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Kuznetsov IE, Anokhin D, Piryazev A, Sideltsev M, Akhkiamova A, Novikov AV, Kurbatov V, Ivanov D, Akkuratov AV. Tailoring the charge transport characteristics in ordered small-molecule organic semiconductors by side-chain engineering and fluorine substitution. Phys Chem Chem Phys 2022; 24:16041-16049. [DOI: 10.1039/d2cp01758j] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Crystalline and liquid-crystalline conjugated small molecules represent a promising family of semiconductor materials for organic electronics applications. The control of morphology and optoelectronic properties of small molecules allows tuning their...
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Chen J. Advanced Electron Microscopy of Nanophased Synthetic Polymers and Soft Complexes for Energy and Medicine Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:2405. [PMID: 34578720 PMCID: PMC8470047 DOI: 10.3390/nano11092405] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 08/02/2021] [Accepted: 09/10/2021] [Indexed: 11/23/2022]
Abstract
After decades of developments, electron microscopy has become a powerful and irreplaceable tool in understanding the ionic, electrical, mechanical, chemical, and other functional performances of next-generation polymers and soft complexes. The recent progress in electron microscopy of nanostructured polymers and soft assemblies is important for applications in many different fields, including, but not limited to, mesoporous and nanoporous materials, absorbents, membranes, solid electrolytes, battery electrodes, ion- and electron-transporting materials, organic semiconductors, soft robotics, optoelectronic devices, biomass, soft magnetic materials, and pharmaceutical drug design. For synthetic polymers and soft complexes, there are four main characteristics that differentiate them from their inorganic or biomacromolecular counterparts in electron microscopy studies: (1) lower contrast, (2) abundance of light elements, (3) polydispersity or nanomorphological variations, and (4) large changes induced by electron beams. Since 2011, the Center for Nanophase Materials Sciences (CNMS) at Oak Ridge National Laboratory has been working with numerous facility users on nanostructured polymer composites, block copolymers, polymer brushes, conjugated molecules, organic-inorganic hybrid nanomaterials, organic-inorganic interfaces, organic crystals, and other soft complexes. This review crystalizes some of the essential challenges, successes, failures, and techniques during the process in the past ten years. It also presents some outlooks and future expectations on the basis of these works at the intersection of electron microscopy, soft matter, and artificial intelligence. Machine learning is expected to automate and facilitate image processing and information extraction of polymer and soft hybrid nanostructures in aspects such as dose-controlled imaging and structure analysis.
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Affiliation(s)
- Jihua Chen
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
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7
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Sun Y, Zhang Z, Asare‐Yeboah K, Bi S, He Z. Poly(butyl acrylate) polymer enhanced phase segregation and morphology of organic semiconductor for
solution‐processed
thin film transistors. J Appl Polym Sci 2021. [DOI: 10.1002/app.50654] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Yeqing Sun
- Key Laboratory for Precision and Non‐traditional Machining Technology of the Ministry of Education Dalian University of Technology Dalian China
| | - Ziyang Zhang
- Department of Electrical Engineering Columbia University New York City New York USA
| | - Kyeiwaa Asare‐Yeboah
- Department of Electrical and Computer Engineering Penn State Behrend Erie Pennsylvania USA
| | - Sheng Bi
- Key Laboratory for Precision and Non‐traditional Machining Technology of the Ministry of Education Dalian University of Technology Dalian China
| | - Zhengran He
- Department of Electrical and Computer Engineering The University of Alabama Tuscaloosa USA
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Shaik B, Khan M, Shaik MR, Sharaf MA, Sekou D, Lee SG. A-π-D-π-A-Based Small Molecules for OTFTs Containing Diketopyrrolopyrrole as Acceptor Units. MICROMACHINES 2021; 12:mi12070817. [PMID: 34357227 PMCID: PMC8304449 DOI: 10.3390/mi12070817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 07/04/2021] [Accepted: 07/11/2021] [Indexed: 11/16/2022]
Abstract
A-π-D-π-A-based small molecules 6,6′-((thiophene-2,5-diylbis(ethyne-2,1-diyl))bis(thiophene-5,2-diyl))bis(2,5-bis(2-ethylhexyl)-3-(thiophen-2-yl)-2,5-dihydropyrrolo[3,4-c]pyrrole-1,4-dione) (TDPP-T) and 6,6′-(((2,3-dihydrothieno[3,4-b][1,4]dioxine-5,7-diyl)bis(ethyne-2,1-diyl))bis(thiophene-5,2-diyl))bis(2,5-bis(2-ethylhexyl)-3-(thiophen-2-yl)-2,5-dihydropyrrolo[3,4-c]pyrrole-1,4-dione) (TDPP-EDOT) have been designed and synthesized. The diketopyrrolopyrrole acts as an electron acceptor, while the thiophene or 3,4-ethylenedioxythiophene acts as an electron donor. The donor–acceptor groups are connected by an ethynyl bridge to further enhance the conjugation. The optoelectronics, electrochemical, and thermal properties have been investigated. Organic thin film transistor (OTFT) devices prepared from TDPP-T and TDPP-EDOT have shown p-type mobility. In as cast films, TDPP-T and TDPP-EDOT have shown a hole mobility of 5.44 × 10−6 cm2 V−1 s−1 and 4.13 × 10−6 cm2 V−1 s−1, respectively. The increase in the mobility of TDPP-T and TDPP-EDOT OTFT devices was observed after annealing at 150 °C, after which the mobilities were 3.11 × 10−4 cm2 V−1 s−1 and 2.63 × 10−4 cm2 V−1 s−1, respectively.
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Affiliation(s)
- Baji Shaik
- Department of Chemistry, Research Institute of Natural Science (RINS), Graduate School for Molecular Materials and Nanochemistry, Gyeongsang National University, Jinju 660-701, South Korea;
| | - Mujeeb Khan
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia;
| | - Mohammed Rafi Shaik
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia;
- Correspondence: (M.R.S.); (S.-G.L.); Tel.: +966-11-4670439 (M.R.S.)
| | - Mohammed A.F. Sharaf
- Department of Industrial Engineering, College of Engineering, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia;
| | - Doumbia Sekou
- Department of Agricultural Extension and Rural Society, College of Food and Agriculture Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia;
| | - Sang-Gyeong Lee
- Department of Chemistry, Research Institute of Natural Science (RINS), Graduate School for Molecular Materials and Nanochemistry, Gyeongsang National University, Jinju 660-701, South Korea;
- Correspondence: (M.R.S.); (S.-G.L.); Tel.: +966-11-4670439 (M.R.S.)
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9
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Naqvi S, Yadav P, Pahari P, Patra A. Dodecyl-substituted poly(3,4-ethylenedioxyselenophene): polymerization and its solution-processable applications for electrochromic and organic solar cells. JOURNAL OF POLYMER RESEARCH 2021. [DOI: 10.1007/s10965-021-02609-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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10
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Chen J, Lu R, Wang X, Qu H, Liu H, Zhang H, Cao X. C
3h
‐symmetric and
C
s
‐symmetric Triformyl Triindolo‐Truxenes: Synthesis and Properties. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202000726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jun‐Bo Chen
- State Key Laboratory of Physical Chemistry of Solid Surfaces Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) Key Laboratory of Chemical Biology of Fujian Province Department of Chemistry College of Chemistry and Chemical Engineering Xiamen University 361005 Xiamen P. R. China
| | - Ru‐Qiang Lu
- State Key Laboratory of Physical Chemistry of Solid Surfaces Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) Key Laboratory of Chemical Biology of Fujian Province Department of Chemistry College of Chemistry and Chemical Engineering Xiamen University 361005 Xiamen P. R. China
| | - Xin‐Chang Wang
- Department of Electronic Science and Engineering Xiamen University 361005 Xiamen P. R. China
| | - Hang Qu
- State Key Laboratory of Physical Chemistry of Solid Surfaces Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) Key Laboratory of Chemical Biology of Fujian Province Department of Chemistry College of Chemistry and Chemical Engineering Xiamen University 361005 Xiamen P. R. China
| | - Hao‐Liang Liu
- State Key Laboratory of Physical Chemistry of Solid Surfaces Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) Key Laboratory of Chemical Biology of Fujian Province Department of Chemistry College of Chemistry and Chemical Engineering Xiamen University 361005 Xiamen P. R. China
| | - Hui Zhang
- State Key Laboratory of Physical Chemistry of Solid Surfaces Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) Key Laboratory of Chemical Biology of Fujian Province Department of Chemistry College of Chemistry and Chemical Engineering Xiamen University 361005 Xiamen P. R. China
| | - Xiao‐Yu Cao
- State Key Laboratory of Physical Chemistry of Solid Surfaces Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) Key Laboratory of Chemical Biology of Fujian Province Department of Chemistry College of Chemistry and Chemical Engineering Xiamen University 361005 Xiamen P. R. China
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He Z, Zhang Z, Asare-Yeboah K, Bi S, Chen J, Li D. Polyferrocenylsilane Semicrystalline Polymer Additive for Solution-Processed p-Channel Organic Thin Film Transistors. Polymers (Basel) 2021; 13:polym13030402. [PMID: 33513894 PMCID: PMC7865563 DOI: 10.3390/polym13030402] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 01/18/2021] [Accepted: 01/22/2021] [Indexed: 11/16/2022] Open
Abstract
In this study, we demonstrated for the first time that a metal-containing semicrystalline polymer was used as an additive to mediate the thin film morphology of solution-grown, small-molecule organic semiconductors. By mixing polyferrocenylsilane (PFS) with an extensively-studied organic semiconductor 6,13-bis(triisopropylsilylethynyl) pentacene (TIPS pentacene), PFS as a semicrystalline polymer independently forms nucleation and crystallization while simultaneously ameliorating diffusivity of the blend system and tuning the surface energies as a result of its partially amorphous property. We discovered that the resultant blend film exhibited a 6-fold reduction in crystal misorientation angle and a 3-fold enlargement in average grain width. Enhanced crystal orientation considerably reduces mobility variation, while minimized defects and trap centers located at grain boundaries lessen the adverse impact on the charge transport. Consequently, bottom-gate, top-contact organic thin film transistors (OTFTs) based on the TIPS pentacene/PFS mixture yielded a 40% increase in performance consistency (represented by the ratio of average mobility to the standard deviation of mobility). The PFS semicrystalline polymer-controlled crystallization can be used to regulate the thin film morphology of other high-performance organic semiconductors and shed light on applications in organic electronic devices.
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Affiliation(s)
- Zhengran He
- Department of Electrical and Computer Engineering, The University of Alabama, Tuscaloosa, AL 35487, USA;
| | - Ziyang Zhang
- Department of Electrical Engineering, Columbia University, New York City, NY 10027, USA;
| | - Kyeiwaa Asare-Yeboah
- Department of Electrical and Computer Engineering, Penn State Behrend, Erie, PA 16563, USA;
| | - Sheng Bi
- Key Laboratory for Precision and Non-Traditional Machining Technology of the Ministry of Education, Dalian University of Technology, Dalian 116024, China;
| | - Jihua Chen
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
- Correspondence: (J.C.); (D.L.); Tel.: +1-(865)576-3385 (J.C.); +1-(205)348-9930 (D.L.)
| | - Dawen Li
- Department of Electrical and Computer Engineering, The University of Alabama, Tuscaloosa, AL 35487, USA;
- Correspondence: (J.C.); (D.L.); Tel.: +1-(865)576-3385 (J.C.); +1-(205)348-9930 (D.L.)
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12
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Lin CC, Afraj SN, Velusamy A, Yu PC, Cho CH, Chen J, Li YH, Lee GH, Tung SH, Liu CL, Chen MC, Facchetti A. A Solution Processable Dithioalkyl Dithienothiophene (DSDTT) Based Small Molecule and Its Blends for High Performance Organic Field Effect Transistors. ACS NANO 2021; 15:727-738. [PMID: 33253536 DOI: 10.1021/acsnano.0c07003] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The 3,5-dithiooctyl dithienothiophene based small molecular semiconductor DDTT-DSDTT (1), end functionalized with fused dithienothiophene (DTT) units, was synthesized and characterized for organic field effect transistors (OFET). The thermal, optical, electrochemical, and computed electronic structural properties of 1 were investigated and contrasted. The single crystal structure of 1 reveals the presence of intramolecular locks between S(alkyl)···S(thiophene), with a very short S-S distance of 3.10 Å, and a planar core. When measured in an OFET device compound 1 exhibits a hole mobility of 3.19 cm2 V-1 s-1, when the semiconductor layer is processed by a solution-shearing deposition method and using environmentally acceptable anisole as the solvent. This is the highest value reported to date for an all-thiophene based molecular semiconductor. In addition, solution-processed small molecule/insulating polymer (1/PαMS) blend films and devices were investigated. Morphological analysis reveals a nanoscopic vertical phase separation with the PαMS layer preferentially contacting the dielectric and 1 located on top of the stack. The OFET based on the blend comprising 50% weight of 1 exhibits a hole mobility of 2.44 cm2 V-1 s-1 and a very smaller threshold voltage shift under gate bias stress.
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Affiliation(s)
- Chia-Chi Lin
- Department of Chemical and Materials Engineering, National Central University, Taoyuan 32001, Taiwan
| | - Shakil N Afraj
- Department of Chemistry, National Central University, Taoyuan 32001, Taiwan
| | - Arulmozhi Velusamy
- Department of Chemistry, National Central University, Taoyuan 32001, Taiwan
| | - Po-Chun Yu
- Department of Chemistry, National Central University, Taoyuan 32001, Taiwan
| | - Chang-Hui Cho
- Department of Chemistry, National Central University, Taoyuan 32001, Taiwan
| | - Jianhua Chen
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Yi-Hsien Li
- Department of Chemistry, National Central University, Taoyuan 32001, Taiwan
| | - Gene-Hsiang Lee
- Instrumentation Center, National Taiwan University, Taipei 10617, Taiwan
| | - Shih-Huang Tung
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei 10617, Taiwan
| | - Cheng-Liang Liu
- Department of Materials Science and Engineering, National Taiwan University, Taipei 10617, Taiwan
| | - Ming-Chou Chen
- Department of Chemistry, National Central University, Taoyuan 32001, Taiwan
| | - Antonio Facchetti
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
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13
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Seki T, Hoshino N, Suzuki Y, Hayashi S. Functional flexible molecular crystals: intrinsic and mechanoresponsive properties. CrystEngComm 2021. [DOI: 10.1039/d1ce00388g] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Flexible molecular crystals have attracted much attention to unique optoelectronic applications and stimuli-responsive chemistry, resulting in various functional molecular crystals for controlling photons, phonons, electrons, and magnons.
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Affiliation(s)
- Tomohiro Seki
- Department of Chemistry, Faculty of Science, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan
| | - Norihisa Hoshino
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, 980-8577, Japan
| | - Yasutaka Suzuki
- Graduate School of Sciences and Technology for Innovation, Yamaguchi University, 1677-1 Yoshida, Yamaguchi, Yamaguchi, 753-8512, Japan
| | - Shotaro Hayashi
- School of Environmental Science and Engineering, Kochi University of Technology, 185 Tosayamada Miyanokuchi, Kami, Kochi, 782-8502, Japan
- Research Center for Molecular Design, Kochi University of Technology, Japan
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14
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Switching from Electron to Hole Transport in Solution-Processed Organic Blend Field-Effect Transistors. Polymers (Basel) 2020; 12:polym12112662. [PMID: 33187323 PMCID: PMC7709025 DOI: 10.3390/polym12112662] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 10/31/2020] [Accepted: 11/07/2020] [Indexed: 02/04/2023] Open
Abstract
Organic electronics became an attractive alternative for practical applications in complementary logic circuits due to the unique features of organic semiconductors such as solution processability and ease of large-area manufacturing. Bulk heterojunctions (BHJ), consisting of a blend of two organic semiconductors of different electronic affinities, allow fabrication of a broad range of devices such as light-emitting transistors, light-emitting diodes, photovoltaics, photodetectors, ambipolar transistors and sensors. In this work, the charge carrier transport of BHJ films in field-effect transistors is switched from electron to hole domination upon processing and post-treatment. Low molecular weight n-type N,N'-bis(n-octyl)-(1,7&1,6)-dicyanoperylene-3,4:9,10-bis(dicarboximide) (PDI8-CN2) was blended with p-type poly[2,5-bis(3-tetradecylthiophene-2-yl)thieno[3,2-b]thiophene] (PBTTT-C14) and deposited by spin-coating to form BHJ films. Systematic investigation of the role of rotation speed, solution temperature, and thermal annealing on thin film morphology was performed using atomic force microscopy, scanning electron microscopy, and grazing incidence wide-angle X-ray scattering. It has been determined that upon thermal annealing the BHJ morphology is modified from small interconnected PDI8-CN2 crystals uniformly distributed in the polymer fraction to large planar PDI8-CN2 crystal domains on top of the blend film, leading to the switch from electron to hole transport in field-effect transistors.
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Phenothiazine derivatives, diketopyrrolopyrrole-based conjugated polymers: synthesis, optical and organic field effect transistor properties. JOURNAL OF POLYMER RESEARCH 2020. [DOI: 10.1007/s10965-020-02199-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Ates M, Kuzgun O, Yildirim M, Ozkan H. rGO / MnO2 / Polyterthiophene ternary composite: pore size control, electrochemical supercapacitor behavior and equivalent circuit model analysis. JOURNAL OF POLYMER RESEARCH 2020. [DOI: 10.1007/s10965-020-02183-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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17
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Chen R, Liu C, Asare-Yeboah K, Zhang Z, He Z, Liu Y. Retracted Article: Wavelength modulation of ZnO nanowire based organic light-emitting diodes with ultraviolet electroluminescence. RSC Adv 2020; 10:23775-23781. [PMID: 35517321 PMCID: PMC9054857 DOI: 10.1039/d0ra04058d] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 06/17/2020] [Indexed: 01/17/2023] Open
Abstract
Although organic light emitting diodes (OLEDs) can find important applications in display-related fields, it still remains a challenge to fabricate high-efficiency ultraviolet (UV) OLEDs with tunable wavelength. In this work, we demonstrate a facile method to adjust the electroluminescence (EL) peak from an inverted UV-OLED device that has zinc oxide nanowires (ZnO NWs) as an electron injection layer. The organic-inorganic interface between ZnO NWs and the 3-(4-biphenyl)-4-phenyl-5-tert-butylphenyl-1,2,4-triazole (TAZ) emission layer employed in this work allows a reduction of the diffusion length of excitons, which further results in a hampered relaxation process of higher energy states as well as a blue shift of the EL spectrum. As a result, the emission peaks of the UV-OLED can be easily adjusted from 383 nm to 374 nm by tuning both the length of the ZnO NWs and the thickness of the TAZ emission layer. Our work reveals an important correlation between emission peaks and exciton diffusion, and presents a novel approach to fabricate high-performance UV-OLEDs with the capability of facilely modifying the emission wavelength.
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Affiliation(s)
- Runze Chen
- Leicester International Institute, Dalian University of Technology Panjin City 124221 China
| | - Chuan Liu
- State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology Dalian 116024 China
| | - Kyeiwaa Asare-Yeboah
- Department of Electrical and Computer Engineering, Penn State Behrend Erie PA 16563 USA
| | - Ziyang Zhang
- Department of Electrical Engineering, Columbia University New York City NY 10027 USA
| | - Zhengran He
- Department of Electrical and Computer Engineering, The University of Alabama Tuscaloosa AL 35487 USA
| | - Yun Liu
- Department of Physics, Dalian University of Technology Dalian 116024 China
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