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Kee S, Zhang P, Travas-Sejdic J. Direct writing of 3D conjugated polymer micro/nanostructures for organic electronics and bioelectronics. Polym Chem 2020. [DOI: 10.1039/d0py00719f] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
3D direct writing and meniscus-guided pen writing methods, which are capable of fabricating 3D micro/nanostructures from soluble π-conjugated polymers (CPs) and CP precursors, and recent advances in these techniques are addressed in this review.
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Affiliation(s)
- Seyoung Kee
- Polymer Biointerface Centre
- School of Chemical Sciences
- The University of Auckland
- Auckland
- New Zealand
| | - Peikai Zhang
- Polymer Biointerface Centre
- School of Chemical Sciences
- The University of Auckland
- Auckland
- New Zealand
| | - Jadranka Travas-Sejdic
- Polymer Biointerface Centre
- School of Chemical Sciences
- The University of Auckland
- Auckland
- New Zealand
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2
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Xu B, Li Z, Chang S, Ren S. Multifunctional molecular charge-transfer thin films. NANOSCALE 2019; 11:22585-22589. [PMID: 31746911 DOI: 10.1039/c9nr08637d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
We report the controlled interfacial interaction in crystallized organic charge transfer thin films, consisting of bis(ethylenedithio)tetrathiafulvalene and C60. The induced broad-band absorption from the UV to near-infrared region leads to a wavelength dependent ambipolar (negative/positive) photoresponse, while multi-stimuli responsive behavior is achieved through charge-transfer interactions. In addition, by coupling with the tetrathiafulvalene-(7,7,8,8-tetracyanoquinodimethane) charge transfer complex, a significantly increased conductivity is achieved. The controlled interfacial charge transfer interaction provides an efficient approach to obtain multifunctional molecular crystallized thin films with a superior external stimuli response.
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Affiliation(s)
- Beibei Xu
- Department of Mechanical and Aerospace Engineering, University at Buffalo, The State University of New York, Buffalo, NY 14260, USA.
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3
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G H, Vempati S, Prajapati KN, Bandopadhyay K, Kalathingal V, Mitra J. Negative photoresponse in ZnO-PEDOT:PSS nanocomposites and photogating effects. NANOSCALE ADVANCES 2019; 1:2435-2443. [PMID: 36131965 PMCID: PMC9419596 DOI: 10.1039/c9na00116f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/23/2019] [Accepted: 05/03/2019] [Indexed: 06/15/2023]
Abstract
We report negative photoresponse or increase of resistance in nanocomposites of n-type ZnO nanoparticles dispersed in a p-type polymer (PEDOT:PSS) under UV and visible light excitation, contrary to that of planar heterojunctions of the constituents. The underlying mechanism of charge transport, specifically negative photoresponse, is explored using spectroscopic and opto-electrical characterisation. Systemic variability in conductance, photoresponse sensitivity and rate with fractional nanoparticle loading in the nanocomposite is demonstrated. Here, photogenerated electrons in ZnO nanoparticles, trapped by the unbiased interfacial barrier, are understood to localize holes in the PEDOT:PSS conduction channel thereby increasing the overall nanocomposite resistance. Reversibility of the negative PR although with a slow decay rate bears testament to the proposed photogating mechanism as opposed to photocatalytic activity. Replacement of the p-type polymer with an electron transport matrix turns the negative photoresponse positive accentuating the role of the interfacial barrier in tuning the optoelectronic response of the composites. These hybrid materials and their unusual behaviour provide alternative strategies for building devices with novel photogating effects, exploiting the properties of their nanostructured forms.
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Affiliation(s)
- Harikrishnan G
- School of Physics, Indian Institute of Science Education and Research Thiruvananthapuram 695551 India
| | - Sesha Vempati
- Department of Physics, Indian Institute of Technology Bhilai Raipur 492015 India
| | - K N Prajapati
- School of Physics, Indian Institute of Science Education and Research Thiruvananthapuram 695551 India
| | - K Bandopadhyay
- School of Physics, Indian Institute of Science Education and Research Thiruvananthapuram 695551 India
| | - Vijith Kalathingal
- School of Physics, Indian Institute of Science Education and Research Thiruvananthapuram 695551 India
| | - J Mitra
- School of Physics, Indian Institute of Science Education and Research Thiruvananthapuram 695551 India
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Zhang P, Aydemir N, Alkaisi M, Williams DE, Travas-Sejdic J. Direct Writing and Characterization of Three-Dimensional Conducting Polymer PEDOT Arrays. ACS APPLIED MATERIALS & INTERFACES 2018; 10:11888-11895. [PMID: 29570263 DOI: 10.1021/acsami.8b02289] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Direct writing is an effective and versatile technique for three-dimensional (3D) fabrication of conducting polymer (CP) structures. It is precisely localized and highly controllable, thus providing great opportunities for incorporating CPs into microelectronic array devices. Herein we demonstrate 3D writing and characterization of poly(3,4-ethylenedioxythiophene)-polystyrenesulfonate (PEDOT:PSS) pillars in an array format, by using an in-house-constructed variant of scanning ion conductance microscopy (SICM). CP pillars with different aspect ratios were successfully fabricated by optimizing the writing parameters: pulling speed, pulling time, concentration of the polymer solution, and the micropipette tip diameter. Especially, super high aspect ratio pillars of around 7 μm in diameter and 5000 μm in height were fabricated, indicating a good capability of this direct writing technique. Additions of an organic solvent and a cross-linking agent contribute to a significantly enhanced water stability of the pillars, critical if the arrays were to be used in biologically relevant applications. Surface morphologies and structural analysis of CP pillars were characterized by scanning electron microscopy and Raman spectroscopy, respectively. Electrochemical properties of the individual pillars of different heights were examined by cyclic voltammetry using a double-barrel micropipette as an electrochemical cell. Exceptional mechanical properties of the pillars, such as high flexibility and robustness, were observed when bent by applying a force. The 3D pillar arrays are expected to provide versatile substrates for functionalized and integrated biological sensing and electrically addressable array devices.
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Affiliation(s)
- Peikai Zhang
- School of Chemical Sciences , The University of Auckland , Auckland 1010 , New Zealand
- MacDiarmid Institute for Advanced Materials and Nanotechnology , Wellington 6140 , New Zealand
| | - Nihan Aydemir
- School of Chemical Sciences , The University of Auckland , Auckland 1010 , New Zealand
- MacDiarmid Institute for Advanced Materials and Nanotechnology , Wellington 6140 , New Zealand
| | - Maan Alkaisi
- MacDiarmid Institute for Advanced Materials and Nanotechnology , Wellington 6140 , New Zealand
- Electrical and Computer Engineering, College of Engineering , University of Canterbury , Christchurch 8140 , New Zealand
| | - David E Williams
- School of Chemical Sciences , The University of Auckland , Auckland 1010 , New Zealand
- MacDiarmid Institute for Advanced Materials and Nanotechnology , Wellington 6140 , New Zealand
| | - Jadranka Travas-Sejdic
- School of Chemical Sciences , The University of Auckland , Auckland 1010 , New Zealand
- MacDiarmid Institute for Advanced Materials and Nanotechnology , Wellington 6140 , New Zealand
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Je JH, Kim JM, Jaworski J. Progression in the Fountain Pen Approach: From 2D Writing to 3D Free-Form Micro/Nanofabrication. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2017; 13:1600137. [PMID: 28060466 DOI: 10.1002/smll.201600137] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Revised: 09/07/2016] [Indexed: 06/06/2023]
Abstract
The fountain pen approach, as a means for transferring materials to substrates, has shown numerous incarnations in recent years for creating 2D micro/nanopatterns and even generating 3D free-form nanostructures using a variety of material "inks". While the idea of filled reservoirs used to deliver material to a substrate via a capillary remains unchanged since antiquity, the advent of precise micromanipulation systems and functional material "inks" allows the extension of this mechanism to more high-tech applications. Herein, the recent growth in meniscus guided fountain pen approaches for benchtop micro/nanofabrication, which has occurred in the last decade, is discussed. Particular attention is given to the theory, equipment, and experimentation encompassing this unique direct writing approach. A detailed exploration of the diverse ink systems and functional device applications borne from this strategy is put forth to reveal its rapid expansion to a broad range of scientific and engineering disciplines. As such, this informative review is provided for researchers considering adoption of this recent advancement of a familiar technology.
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Affiliation(s)
- Jung Ho Je
- Pohang University of Science and Technology, Department of Materials Science and Engineering, San 31, Hyoja-dong, Pohang, 790-784, South Korea
| | - Jong-Man Kim
- Hanyang University, Department of Chemical Engineering, Institute of Nanoscience and Technology, 222 Wangsimni-ro, Seoul, 133-791, South Korea
| | - Justyn Jaworski
- Hanyang University, Department of Chemical Engineering, Institute of Nanoscience and Technology, 222 Wangsimni-ro, Seoul, 133-791, South Korea
- Department of Bioengineering, University of Texas at Arlington (UTA), 501 W. 1st Street, Arlington, Texas, 76010, USA
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Lou Z, Shen G. Flexible Photodetectors Based on 1D Inorganic Nanostructures. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2016; 3:1500287. [PMID: 27774404 PMCID: PMC5064608 DOI: 10.1002/advs.201500287] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2015] [Revised: 09/18/2015] [Indexed: 05/21/2023]
Abstract
Flexible photodetectors with excellent flexibility, high mechanical stability and good detectivity, have attracted great research interest in recent years. 1D inorganic nanostructures provide a number of opportunities and capabilities for use in flexible photodetectors as they have unique geometry, good transparency, outstanding mechanical flexibility, and excellent electronic/optoelectronic properties. This article offers a comprehensive review of several types of flexible photodetectors based on 1D nanostructures from the past ten years, including flexible ultraviolet, visible, and infrared photodetectors. High-performance organic-inorganic hybrid photodetectors, as well as devices with 1D nanowire (NW) arrays, are also reviewed. Finally, new concepts of flexible photodetectors including piezophototronic, stretchable and self-powered photodetectors are examined to showcase the future research in this exciting field.
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Affiliation(s)
- Zheng Lou
- State Key Laboratory for Superlattices and Microstructures Institute of Semiconductors Chinese Academy of Sciences Beijing 100083 P.R. China
| | - Guozhen Shen
- State Key Laboratory for Superlattices and Microstructures Institute of Semiconductors Chinese Academy of Sciences Beijing 100083 P.R. China
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Lee J, Lee HR, Pyo J, Jung Y, Seo JY, Ryu HG, Kim KT, Je JH. Quantitative Probing of Cu(2+) Ions Naturally Present in Single Living Cells. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:4071-4076. [PMID: 27027298 DOI: 10.1002/adma.201600161] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Revised: 02/14/2016] [Indexed: 06/05/2023]
Abstract
Quantitative probing of Cu(2+) ions naturally present in single living cells is realized by developing a quantum-dot-embedded nanowire-waveguide probe. The intracellular Cu(2+) ion concentration is quantified by direct monitoring of photoluminescence quenching during the insertion of the nanowire in a living neuron. The measured intracellular Cu(2+) ion concentration is 3.34 ± 1.04 × 10(-6) m (mean ± s.e.m.) in single hippocampal neurons.
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Affiliation(s)
- Junho Lee
- X-Ray Imaging Center, Department of Materials Science and Engineering, Pohang University of Science and Technology, Pohang, 790-784, Korea
| | - Hwa-Rim Lee
- School of Interdisciplinary Bioscience and Bioengineering, Pohang University of Science and Technology, Pohang, 790-784, Korea
| | - Jaeyeon Pyo
- X-Ray Imaging Center, Department of Materials Science and Engineering, Pohang University of Science and Technology, Pohang, 790-784, Korea
| | - Youngseob Jung
- Division of Integrative Biosciences and Biotechnology, Pohang University of Science and Technology, Pohang, 790-784, Korea
| | - Ji-Young Seo
- Division of Integrative Biosciences and Biotechnology, Pohang University of Science and Technology, Pohang, 790-784, Korea
| | - Hye Guk Ryu
- Department of Life Sciences, Pohang University of Science and Technology, Pohang, 790-784, Korea
| | - Kyong-Tai Kim
- School of Interdisciplinary Bioscience and Bioengineering, Pohang University of Science and Technology, Pohang, 790-784, Korea
- Division of Integrative Biosciences and Biotechnology, Pohang University of Science and Technology, Pohang, 790-784, Korea
- Department of Life Sciences, Pohang University of Science and Technology, Pohang, 790-784, Korea
| | - Jung Ho Je
- X-Ray Imaging Center, Department of Materials Science and Engineering, Pohang University of Science and Technology, Pohang, 790-784, Korea
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Zhong BN, Fei GT, Fu WB, Gong XX, Gao XD, Zhang LD. Solvothermal synthesis, stirring-assisted assembly and photoelectric performance of Te nanowires. Phys Chem Chem Phys 2016; 18:32691-32696. [DOI: 10.1039/c6cp04979f] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The uniform Te nanowires in large quantity were synthesized by a PVP-assisted solvothermal process under mild conditions, and then assembled into ordered alignment. An infrared photodetector based on the well aligned Te nanowires exhibits excellent photoresponse properties.
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Affiliation(s)
- Bin Nian Zhong
- Key Laboratory of Materials Physics and Anhui Key Laboratory of Nanomaterials and Nanotechnology
- Institute of Solid State Physics
- Hefei Institutes of Physical Science
- Chinese Academy of Sciences
- Hefei 230031
| | - Guang Tao Fei
- Key Laboratory of Materials Physics and Anhui Key Laboratory of Nanomaterials and Nanotechnology
- Institute of Solid State Physics
- Hefei Institutes of Physical Science
- Chinese Academy of Sciences
- Hefei 230031
| | - Wen Biao Fu
- Key Laboratory of Materials Physics and Anhui Key Laboratory of Nanomaterials and Nanotechnology
- Institute of Solid State Physics
- Hefei Institutes of Physical Science
- Chinese Academy of Sciences
- Hefei 230031
| | - Xin Xin Gong
- Key Laboratory of Materials Physics and Anhui Key Laboratory of Nanomaterials and Nanotechnology
- Institute of Solid State Physics
- Hefei Institutes of Physical Science
- Chinese Academy of Sciences
- Hefei 230031
| | - Xu Dong Gao
- Key Laboratory of Materials Physics and Anhui Key Laboratory of Nanomaterials and Nanotechnology
- Institute of Solid State Physics
- Hefei Institutes of Physical Science
- Chinese Academy of Sciences
- Hefei 230031
| | - Li De Zhang
- Key Laboratory of Materials Physics and Anhui Key Laboratory of Nanomaterials and Nanotechnology
- Institute of Solid State Physics
- Hefei Institutes of Physical Science
- Chinese Academy of Sciences
- Hefei 230031
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Lee J, Oh S, Pyo J, Kim JM, Je JH. A light-driven supramolecular nanowire actuator. NANOSCALE 2015; 7:6457-6461. [PMID: 25793329 DOI: 10.1039/c5nr01118c] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A single photomechanical supramolecular nanowire actuator with an azobenzene-containing 1,3,5-tricarboxamide derivative is developed by employing a direct writing method. Single nanowires display photoinduced reversible bending and the bending behavior follows first-order kinetics associated with azobenzene photoisomerization. A wireless photomechanical nanowire tweezers that remotely manipulates a single micro-particle is also demonstrated.
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Affiliation(s)
- Junho Lee
- X-ray Imaging Center, Department of Materials Science and Engineering, Pohang University of Science and Technology, Pohang 790-784, Republic of Korea.
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Yoo J, Jeong S, Kim S, Je JH. A stretchable nanowire UV-Vis-NIR photodetector with high performance. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2015; 27:1712-7. [PMID: 25613836 DOI: 10.1002/adma.201404945] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2014] [Revised: 12/12/2014] [Indexed: 05/27/2023]
Abstract
A simple direct-writing technique can be used to fabricate a stretchable UV-vis-NIR nanowire photodetector (NWPD) consisting of PbS quantum dot (QD)-poly(3-hexylthiopehene) (P3HT) hybrid NWs. The hybrid NWPD shows superior sensitivity and response speed in the UV-vis to NIR range. The stretchable UV-vis-NIR NWPD shows a nearly identical photoresponse under extreme (up to 100%) and repeated (up to 100 cycles) stretching conditions.
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Affiliation(s)
- Jewon Yoo
- X-ray Imaging Center, Department of Materials Science and Engineering, Pohang University of Science and Technology, Pohang, 790-784, South Korea
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Nahor A, Shalev I, Sa'ar A, Yitzchaik S. Optical and Electrooptical Properties of Porous-Silicon/Conjugated-Polymer Composite Structures. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201402450] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Zhang G, Yan M, Teng X, Bi H, Han Y, Tian M, Wang M. Formation of ultra-long nanoribbons by self-assembly of carbon dots and anionic oligomers for multi-colored fluorescence and electrical conduction. Chem Commun (Camb) 2014; 50:10244-7. [DOI: 10.1039/c4cc04835k] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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