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Hoang Huy VP, Bark CW. A self-powered photodetector through facile processing using polyethyleneimine/carbon quantum dots for highly sensitive UVC detection. RSC Adv 2024; 14:12360-12371. [PMID: 38633486 PMCID: PMC11022040 DOI: 10.1039/d3ra08538d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Accepted: 03/16/2024] [Indexed: 04/19/2024] Open
Abstract
Ultraviolet C (UVC) photodetectors have garnered considerable attention recently because the detection of UVC is critical for preventing skin damage in humans, monitoring environmental conditions, detecting power aging in facilities, and military applications. As UVC detectors are "solar-blind", they encounter less interference than other environmental signals, resulting in low disturbance levels. This study employed a natural precursor (glucose) and a one-step ultrasonic reaction procedure to prepare carbon quantum dots (CQDs), which served as a convenient and environmentally friendly material to combine with polyethyleneimine (PEI). The prepared materials were used to develop a self-powered, high-performance UVC photodetector. The thickness of the constitutive film was investigated in detail based on the conditions of the electron transport pathway and trap positions to further improve the performance of the PEI/CQD photodetectors. Under the optimized conditions, the photodetector could generate a strong signal (1.5 mA W-1 at 254 nm) and exhibit high detectability (1.8 × 1010 Jones at 254 nm), an ultrafast response, and long-term stability during the power supply sequence. The developed solar-blind UVC photodetector can be applied in various ways to monitor UVC in an affordable, straightforward, and precise manner.
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Affiliation(s)
- Vo Pham Hoang Huy
- Department of Electrical Engineering, Gachon University Seongnam Gyeonggi 13120 Republic of Korea
| | - Chung Wung Bark
- Department of Electrical Engineering, Gachon University Seongnam Gyeonggi 13120 Republic of Korea
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2
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Grobelny A, Lorenc K, Skowron Ł, Zapotoczny S. Synthetic Route to Conjugated Donor–Acceptor Polymer Brushes via Alternating Copolymerization of Bifunctional Monomers. Polymers (Basel) 2022; 14:polym14132735. [PMID: 35808780 PMCID: PMC9268968 DOI: 10.3390/polym14132735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Revised: 06/27/2022] [Accepted: 06/30/2022] [Indexed: 12/10/2022] Open
Abstract
Alternating donor–acceptor conjugated polymers, widely investigated due to their applications in organic photovoltaics, are obtained mainly by cross-coupling reactions. Such a synthetic route exhibits limited efficiency and requires using, for example, toxic palladium catalysts. Furthermore, the coating process demands solubility of the macromolecules, provided by the introduction of alkyl side chains, which have an impact on the properties of the final material. Here, we present the synthetic route to ladder-like donor–acceptor polymer brushes using alternating copolymerization of modified styrene and maleic anhydride monomers, ensuring proper arrangement of the pendant donor and acceptor groups along the polymer chains grafted from a surface. As a proof of concept, macromolecules with pendant thiophene and benzothiadiazole groups were grafted by means of RAFT and metal-free ATRP polymerizations. Densely packed brushes with a thickness up to 200 nm were obtained in a single polymerization process, without the necessity of using metal-based catalysts or bulky substituents of the monomers. Oxidative polymerization using FeCl3 was then applied to form the conjugated chains in a double-stranded (ladder-like) architecture.
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Wang Y, Kublitski J, Xing S, Dollinger F, Spoltore D, Benduhn J, Leo K. Narrowband organic photodetectors - towards miniaturized, spectroscopic sensing. MATERIALS HORIZONS 2022; 9:220-251. [PMID: 34704585 DOI: 10.1039/d1mh01215k] [Citation(s) in RCA: 40] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Omnipresent quality monitoring in food products, blood-oxygen measurement in lightweight conformal wrist bands, or data-driven automated industrial production: Innovation in many fields is being empowered by sensor technology. Specifically, organic photodetectors (OPDs) promise great advances due to their beneficial properties and low-cost production. Recent research has led to rapid improvement in all performance parameters of OPDs, which are now on-par or better than their inorganic counterparts, such as silicon or indium gallium arsenide photodetectors, in several aspects. In particular, it is possible to directly design OPDs for specific wavelengths. This makes expensive and bulky optical filters obsolete and allows for miniature detector devices. In this review, recent progress of such narrowband OPDs is systematically summarized covering all aspects from narrow-photo-absorbing materials to device architecture engineering. The recent challenges for narrowband OPDs, like achieving high responsivity, low dark current, high response speed, and good dynamic range are carefully addressed. Finally, application demonstrations covering broadband and narrowband OPDs are discussed. Importantly, several exciting research perspectives, which will stimulate further research on organic-semiconductor-based photodetectors, are pointed out at the very end of this review.
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Affiliation(s)
- Yazhong Wang
- Dresden Integrated Center for Applied Physics and Photonic Materials (IAPP) and Institute for Applied Physics, Technische Universität Dresden, Nöthnitzer Str. 61, 01187 Dresden, Germany.
| | - Jonas Kublitski
- Dresden Integrated Center for Applied Physics and Photonic Materials (IAPP) and Institute for Applied Physics, Technische Universität Dresden, Nöthnitzer Str. 61, 01187 Dresden, Germany.
| | - Shen Xing
- Dresden Integrated Center for Applied Physics and Photonic Materials (IAPP) and Institute for Applied Physics, Technische Universität Dresden, Nöthnitzer Str. 61, 01187 Dresden, Germany.
| | - Felix Dollinger
- Dresden Integrated Center for Applied Physics and Photonic Materials (IAPP) and Institute for Applied Physics, Technische Universität Dresden, Nöthnitzer Str. 61, 01187 Dresden, Germany.
| | - Donato Spoltore
- Dresden Integrated Center for Applied Physics and Photonic Materials (IAPP) and Institute for Applied Physics, Technische Universität Dresden, Nöthnitzer Str. 61, 01187 Dresden, Germany.
| | - Johannes Benduhn
- Dresden Integrated Center for Applied Physics and Photonic Materials (IAPP) and Institute for Applied Physics, Technische Universität Dresden, Nöthnitzer Str. 61, 01187 Dresden, Germany.
| | - Karl Leo
- Dresden Integrated Center for Applied Physics and Photonic Materials (IAPP) and Institute for Applied Physics, Technische Universität Dresden, Nöthnitzer Str. 61, 01187 Dresden, Germany.
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Park KH, Go J, Lim B, Noh Y. Recent progress in lactam‐based polymer semiconductors for organic electronic devices. JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1002/pol.20210625] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Kwang Hun Park
- Center for Advanced Specialty Chemicals Korea Research Institute of Chemical Technology (KRICT) Ulsan Republic of Korea
| | - Ji‐Young Go
- Department of Chemical Engineering Pohang University of Science and Technology Pohang Republic of Korea
| | - Bogyu Lim
- Center for Advanced Specialty Chemicals Korea Research Institute of Chemical Technology (KRICT) Ulsan Republic of Korea
| | - Yong‐Young Noh
- Department of Chemical Engineering Pohang University of Science and Technology Pohang Republic of Korea
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Yang HR, Chen YY, Sun HS, Tung SH, Huang SL, Huang PC, Lee JJ, Lai YY. Strengthening the Intrachain Interconnection of Polymers by the Naphthalene Diimide–Pyrene Complementary Interactions. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c00308] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Hau-Ren Yang
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei 10617, Taiwan
| | - Yen-Yu Chen
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei 10617, Taiwan
| | - Han-Sheng Sun
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei 10617, Taiwan
| | - Shih-Huang Tung
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei 10617, Taiwan
| | - Shou-Ling Huang
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Po-Chia Huang
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - Jey-Jau Lee
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - Yu-Ying Lai
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei 10617, Taiwan
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Park B, Kang H, Ha YH, Kim J, Lee J, Yu K, Kwon S, Jang S, Kim S, Jeong S, Hong S, Byun S, Kwon S, Kim Y, Lee K. Direct Observation of Confinement Effects of Semiconducting Polymers in Polymer Blend Electronic Systems. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:2100332. [PMID: 34306977 PMCID: PMC8292904 DOI: 10.1002/advs.202100332] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 03/16/2021] [Indexed: 06/13/2023]
Abstract
The advent of special types of polymeric semiconductors, known as "polymer blends," presents new opportunities for the development of next-generation electronics based on these semiconductors' versatile functionalities in device applications. Although these polymer blends contain semiconducting polymers (SPs) mixed with a considerably high content of insulating polymers, few of these blends unexpectedly yield much higher charge carrier mobilities than those of pure SPs. However, the origin of such an enhancement has remained unclear owing to a lack of cases exhibiting definite improvements in charge carrier mobility, and the limited knowledge concerning the underlying mechanism thereof. In this study, the morphological changes and internal nanostructures of polymer blends based on various SP types with different intermolecular interactions in an insulating polystyrene matrix are investigated. Through this investigation, the physical confinement of donor-acceptor type SP chains in a continuous nanoscale network structure surrounded by polystyrenes is shown to induce structural ordering with more straight edge-on stacked SP chains. Hereby, high-performance and transparent organic field-effect transistors with a hole mobility of ≈5.4 cm2 V-1 s-1 and an average transmittance exceeding 72% in the visible range are achieved.
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Affiliation(s)
- Byoungwook Park
- Heeger Center for Advanced MaterialsGwangju Institute of Science and TechnologyGwangju61005Republic of Korea
| | - Hongkyu Kang
- Research Institute for Solar and Sustainable EnergiesGwangju Institute of Science and TechnologyGwangju61005Republic of Korea
| | - Yeon Hee Ha
- Department of Chemistry and Research Institute for Green Energy Convergence TechnologyGyeongsang National UniversityJinju52828Republic of Korea
| | - Jehan Kim
- Pohang Accelerator LaboratoryPohang University of Science and TechnologyPohang790‐784Republic of Korea
| | - Jong‐Hoon Lee
- Heeger Center for Advanced MaterialsGwangju Institute of Science and TechnologyGwangju61005Republic of Korea
| | - Kilho Yu
- Heeger Center for Advanced MaterialsGwangju Institute of Science and TechnologyGwangju61005Republic of Korea
| | - Sooncheol Kwon
- Research Institute for Solar and Sustainable EnergiesGwangju Institute of Science and TechnologyGwangju61005Republic of Korea
| | - Soo‐Young Jang
- Research Institute for Solar and Sustainable EnergiesGwangju Institute of Science and TechnologyGwangju61005Republic of Korea
| | - Seok Kim
- School of Materials Science and EngineeringGwangju Institute of Science and TechnologyGwangju61005Republic of Korea
| | - Soyeong Jeong
- Heeger Center for Advanced MaterialsGwangju Institute of Science and TechnologyGwangju61005Republic of Korea
| | - Soonil Hong
- Heeger Center for Advanced MaterialsGwangju Institute of Science and TechnologyGwangju61005Republic of Korea
| | - Seunghwan Byun
- Department of ChemistryGwangju Institute of Science and TechnologyGwangju61005Republic of Korea
| | - Soon‐Ki Kwon
- Department of Materials Engineering and Convergence Technology and ERIGyeongsang National UniversityJinju52828Republic of Korea
| | - Yun‐Hi Kim
- Department of Chemistry and Research Institute for Green Energy Convergence TechnologyGyeongsang National UniversityJinju52828Republic of Korea
| | - Kwanghee Lee
- Heeger Center for Advanced MaterialsGwangju Institute of Science and TechnologyGwangju61005Republic of Korea
- Research Institute for Solar and Sustainable EnergiesGwangju Institute of Science and TechnologyGwangju61005Republic of Korea
- School of Materials Science and EngineeringGwangju Institute of Science and TechnologyGwangju61005Republic of Korea
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Jeong W, Kang J, Jeong MK, Won JH, Jung IH. Development of low bandgap polymers for red and near-infrared fullerene-free organic photodetectors. NEW J CHEM 2021. [DOI: 10.1039/d1nj01694f] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Two low bandgap donor polymers, PDTPTT and PCPDTTT, were synthesized and their photodetecting properties were investigated under a 680 nm red LED.
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Affiliation(s)
- WonJo Jeong
- Department of Organic and Nano Engineering, and Human-Tech Convergence Program
- Hanyang University
- Seoul 04763
- Republic of Korea
| | - Jinhyeon Kang
- Department of Organic and Nano Engineering, and Human-Tech Convergence Program
- Hanyang University
- Seoul 04763
- Republic of Korea
- Department of Chemistry
| | - Moon-Ki Jeong
- School of Chemical and Biological Engineering
- Seoul National University
- Seoul 08826
- Republic of Korea
| | - Jong Ho Won
- Department of Chemistry
- Kookmin University
- Seoul 02707
- Republic of Korea
| | - In Hwan Jung
- Department of Organic and Nano Engineering, and Human-Tech Convergence Program
- Hanyang University
- Seoul 04763
- Republic of Korea
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Shafian S, Kim K. Panchromatically Responsive Organic Photodiodes utilizing a Noninvasive Narrowband Color Electrode. ACS APPLIED MATERIALS & INTERFACES 2020; 12:53012-53020. [PMID: 33172259 DOI: 10.1021/acsami.0c17183] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Organic photodiodes (OPDs) are emerging as potential candidates in image sensors owing to their high sensitivity and submicron photoactive layer thickness. For OPDs to be more competitive, it is necessary to develop an economical fabrication process and improve their narrowband spectral response from visible to near-infrared (NIR). In this study, panchromatic OPDs with a remarkable narrowband response from visible to NIR are developed by integrating a solution-processed optical filter-electrode (OF-electrode) and a panchromatic organic photoactive layer. Solution-processable TiO2 nanoparticles (sTNPs) bound to an acetylacetone ligand are used to construct the OF-electrode, which had the structure Ag/sTNP/Ag, and a ternary blend of a polymer donor, a nonfullerene acceptor, and a fullerene acceptor is used for preparing the panchromatic organic photoactive layer. Direct integration of the OF-electrode with the organic photoactive layer eliminates the need for additional OF installation, without damaging the underlying organic photoactive layer. Variation of the sTNP layer thickness controls the color filtering wavelength to vary from visible to NIR, with exceptionally narrow full width at half-maximum (fwhm) values of 48-82 nm and transparency values of 50-70%. Owing to their selective response for the desired color and their capability to minimize noise from other colors, the OPDs exhibit high sensitivity values of 2.82 × 1012, 3.02 × 1012, and 3.94 × 1012 cm Hz0.5/W (Jones) with narrow fwhm values of 110, 91, and 75 nm at a peak transmittance exceeding 65% for blue, green, and red, respectively. Furthermore, they detect NIR light at a wavelength of 950 nm with a narrow fwhm value of 51 nm and a high sensitivity of 3.78 × 1012 cm Hz0.5/W (Jones).
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Affiliation(s)
- Shafidah Shafian
- Department of Chemistry and Nanoscience, Ewha Womans University, Seoul 03760, Korea
| | - Kyungkon Kim
- Department of Chemistry and Nanoscience, Ewha Womans University, Seoul 03760, Korea
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Xing S, Wang X, Guo E, Kleemann H, Leo K. Organic Thin-Film Red-Light Photodiodes with Tunable Spectral Response Via Selective Exciton Activation. ACS APPLIED MATERIALS & INTERFACES 2020; 12:13061-13067. [PMID: 32088954 DOI: 10.1021/acsami.9b22058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Red and near-infrared light detection is vital for numerous applications, including full-color imaging, optical communication, and machine vision. However, this development is hindered by a limited choice of small band gap and narrow-bandwidth materials. Here, we report a device principle with a simple organic planar heterojunction architecture that enables a selective activation of excitons for tuning the photoresponse spectra to fabricate thin-film, filterless, red-light organic photodiodes. A sequential solution-processed active layer is formed by depositing the top layer of PC71BM onto the predeposited bottom layer of doped P3HT. By adjusting the ratio of PTB7 in P3HT, an improved responsivity and a red-shift of the photoresponse peak from 645 to 745 nm are demonstrated simultaneously. Furthermore, the responsivity of 745 nm is enhanced over 5 times with a narrow full width at half-maximum of ∼50 nm at optimized doping ratio compared to the pristine PTB7 device. As a result, a high specific detectivity in excess of 1012 Jones and broad linear dynamic range of 103 dB are achieved. This design concept shows the possibility of realizing tunable red-light selectivity even at relatively thin-film thickness, which is intriguing for the implementation of high-resolution image sensors in the near future.
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Affiliation(s)
- Shen Xing
- Dresden Integrated Center for Applied Physics and Photonic Materials (IAPP), Technische Universität Dresden, 01062 Dresden, Germany
| | - Xiao Wang
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane 4072, Australia
| | - Erjuan Guo
- Dresden Integrated Center for Applied Physics and Photonic Materials (IAPP), Technische Universität Dresden, 01062 Dresden, Germany
| | - Hans Kleemann
- Dresden Integrated Center for Applied Physics and Photonic Materials (IAPP), Technische Universität Dresden, 01062 Dresden, Germany
| | - Karl Leo
- Dresden Integrated Center for Applied Physics and Photonic Materials (IAPP), Technische Universität Dresden, 01062 Dresden, Germany
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