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Lee S, Cho S, Choi H, Kim S, Jeong I, Lee Y, Choi T, Bae H, Kim JH, Park S. Bottom Deposition Enables Stable All-Solid-State Batteries with Ultrathin Lithium Metal Anode. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2311652. [PMID: 38361217 DOI: 10.1002/smll.202311652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Indexed: 02/17/2024]
Abstract
Modern strides in energy storage underscore the significance of all-solid-state batteries (ASSBs) predicated on solid electrolytes and lithium (Li) metal anodes in response to the demand for safer batteries. Nonetheless, ASSBs are often beleaguered by non-uniform Li deposition during cycling, leading to compromised cell performance from internal short circuits and hindered charge transfer. In this study, the concept of "bottom deposition" is introduced to stabilize metal deposition based on the lithiophilic current collector and a protective layer composed of a polymeric binder and carbon black. The bottom deposition, wherein Li plating ensues between the protective layer and the current collector, circumvents internal short circuits and facilitates uniform volumetric changes of Li. The prepared functional binder for the protective layer presents outstanding mechanical robustness and adhesive properties, which can withstand the volume expansion caused by metal growth. Furthermore, its excellent ion transfer properties promote uniform Li bottom deposition even under a current density of 6 mA·cm-2. Also, scanning electron microscopy analysis reveals a consistent plating/stripping morphology of Li after cycling. Consequently, the proposed system exhibits enhanced electrochemical performance when assessed within the ASSB framework, operating under a configuration marked by a high Li utilization rate reliant on an ultrathin Li.
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Affiliation(s)
- Sangyeop Lee
- Division of Advanced Materials Science, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, 37673, Republic of Korea
| | - Sungjin Cho
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, 37673, Republic of Korea
| | - Hyunbeen Choi
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, 37673, Republic of Korea
| | - Sungho Kim
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, 37673, Republic of Korea
| | - Insu Jeong
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, 37673, Republic of Korea
| | - Yubin Lee
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, 37673, Republic of Korea
| | - Taesun Choi
- Graduate Institute of Ferrous and Energy Materials Technology, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, 37673, Republic of Korea
| | - Hongyeul Bae
- Secondary Battery Materials Research Laboratory, Research Institute of Industrial Science and Technology (RIST), 67 Cheongam-ro, Nam-gu, Pohang, 37673, Republic of Korea
| | - Jin Hong Kim
- Secondary Battery Materials Research Laboratory, Research Institute of Industrial Science and Technology (RIST), 67 Cheongam-ro, Nam-gu, Pohang, 37673, Republic of Korea
| | - Soojin Park
- Division of Advanced Materials Science, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, 37673, Republic of Korea
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, 37673, Republic of Korea
- Graduate Institute of Ferrous and Energy Materials Technology, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, 37673, Republic of Korea
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2
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Choi YK, Kim TH, Jung BK, Park T, Lee YM, Oh S, Choi HJ, Park J, Bae SI, Lee Y, Shim JW, Park HY, Oh SJ. High-Performance Self-Powered Quantum Dot Infrared Photodetector with Azide Ion Solution Treated Electron Transport Layer. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2308375. [PMID: 38073328 DOI: 10.1002/smll.202308375] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 11/15/2023] [Indexed: 05/03/2024]
Abstract
The demand for self-powered photodetectors (PDs) capable of NIR detection without external power is growing with the advancement of NIR technologies such as LIDAR and object recognition. Lead sulfide quantum dot-based photodetectors (PbS QPDs) excel in NIR detection; however, their self-powered operation is hindered by carrier traps induced by surface defects and unfavorable band alignment in the zinc oxide nanoparticle (ZnO NP) electron-transport layer (ETL). In this study, an effective azide-ion (N3 -) treatment is introduced on a ZnO NP ETL to reduce the number of traps and improve the band alignment in a PbS QPD. The ZnO NP ETL treated with azide ions exhibited notable improvements in carrier lifetime and mobility as well as an enhanced internal electric field within the thin-film heterojunction of the ZnO NPs and PbS QDs. The azide-ion-treated PbS QPD demonstrated a increase in short-circuit current density upon NIR illumination, marking a responsivity of 0.45 A W-1, specific detectivity of 4 × 1011 Jones at 950 nm, response time of 8.2 µs, and linear dynamic range of 112 dB.
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Affiliation(s)
- Young Kyun Choi
- Department of Materials Science and Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Tae Hyuk Kim
- School of Electrical Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Byung Ku Jung
- Department of Materials Science and Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Taesung Park
- Department of Materials Science and Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Yong Min Lee
- Department of Semiconductor Systems Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Seongkeun Oh
- Department of Materials Science and Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Hyung Jin Choi
- Department of Materials Science and Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Junhyeok Park
- Department of Materials Science and Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Sang-In Bae
- Samsung Electronics Co. Ltd, Yongin-si, 17113, Republic of Korea
| | - YunKi Lee
- Samsung Electronics Co. Ltd, Yongin-si, 17113, Republic of Korea
| | - Jae Won Shim
- School of Electrical Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Hye Yeon Park
- Samsung Electronics Co. Ltd, Yongin-si, 17113, Republic of Korea
| | - Soong Ju Oh
- Department of Materials Science and Engineering, Korea University, Seoul, 02841, Republic of Korea
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Mahakal S, Pathan HM, Prasad M, Rondiya S, Patole SP, Jadkar SR. Modification in Toxicity of l-Histidine-Incorporated ZnO Nanoparticles toward Escherichia coli. ACS OMEGA 2023; 8:34354-34363. [PMID: 37780019 PMCID: PMC10536091 DOI: 10.1021/acsomega.3c01183] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 06/02/2023] [Indexed: 10/03/2023]
Abstract
This paper presents a comparative study of the toxicity of pristine-ZnO and l-histidine-incorporated ZnO toward Escherichia coli (E. coli) as a Gram-negative model organism. Pristine-ZnO and l-histidine-incorporated ZnO with different l-histidine concentrations were synthesized using an open aqueous solution bath technique. XRD studies revealed the formation of polycrystalline wurtzite ZnO. The average crystallite size of the synthesized l-histidine-incorporated ZnO decreased as the concentration of l-histidine increased. The FTIR spectra showed the presence of Zn-O, CO2-/CO3-, and C-N (only in l-histidine-incorporated ZnO samples) and -OH bond vibration signals in all samples. The chemical purity of all the samples was ensured using XPS analysis. The microbial activity of these samples was investigated using E. coli. The solution with 100 μg/mL ZnO in sterile distilled water showed up to 94% growth inhibition of E. coli, establishing antibacterial activity. However, l-histidine incorporated in ZnO showed reduced antibacterial activity with the increase of the concentration of l-histidine in ZnO. Furthermore, flow cytometry studies during the interaction of ZnO and E. coli confirmed the generation of reactive oxygen species (ROS), validating its antibacterial activity. The interaction of l-histidine-incorporated ZnO and E. coli showed declining ROS with the increase in the l-histidine concentration, indicating a ZnO toxicity reduction.
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Affiliation(s)
- Shraddha Mahakal
- Department
of Physics, Savitribai Phule Pune University, Pune 411 007, India
| | - Habib M. Pathan
- Department
of Physics, Savitribai Phule Pune University, Pune 411 007, India
| | - Mohit Prasad
- Department
of Physics, Savitribai Phule Pune University, Pune 411 007, India
- Department
of Applied Science and Humanities, Pimpri
Chinchwad College Of Engineering (PCCOE), Nigdi, Pune 411 004, India
| | - Sachin Rondiya
- Department
of Materials Engineering, Indian Institute
of Science, Bangalore 560 012, India
| | - Shashikant P. Patole
- Department
of Physics, Khalifa University of Science
and Technology, Abu Dhabi 127788, UAE
| | - Sandesh R. Jadkar
- Department
of Physics, Savitribai Phule Pune University, Pune 411 007, India
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Tuc Altaf C, Colak TO, Rostas AM, Popa A, Toloman D, Suciu M, Demirci Sankir N, Sankir M. Impact on the Photocatalytic Dye Degradation of Morphology and Annealing-Induced Defects in Zinc Oxide Nanostructures. ACS OMEGA 2023; 8:14952-14964. [PMID: 37151495 PMCID: PMC10157689 DOI: 10.1021/acsomega.2c07412] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Accepted: 04/05/2023] [Indexed: 05/09/2023]
Abstract
In this study, three different morphologies, nanoflower (NF), nano sponge (NS), and nano urchin (NU), of zinc oxide (ZnO) nanostructures were synthesized successfully via a mild hydrothermal method. After synthesis, the samples were annealed in the atmosphere at 300, 600, and 800 °C. Although annealing provides different degradation kinetics for different morphologies, ZnO NS performed significantly better than other morphologies for all annealing temperatures we used in the study. When the photoluminescence, electron paramagnetic resonance spectroscopy, BET surface, and X-ray diffraction analysis results are examined, it is revealed that the defect structure, pore diameter, and crystallinity cumulatively affect the photocatalytic activity of ZnO nanocatalysts. As a result, to obtain high photocatalytic activity in rhodamine B (RhB) degradation, it is necessary to develop a ZnO catalyst with fewer core defects, more oxygen vacancies, near band emission, large crystallite size, and large pore diameter. The ZnO NS-800 °C nanocatalyst studied here had a 35.6 × 10-3 min-1 rate constant and excellent stability after a 5-cycle photocatalytic degradation of RhB.
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Affiliation(s)
- Cigdem Tuc Altaf
- Department
of Materials Science and Nanotechnology Engineering, TOBB University of Economics and Technology, SogutozuCaddesi No 43 Sogutozu, 06560 Ankara, Turkey
| | - Tuluhan Olcayto Colak
- Micro
and Nanotechnology Graduate Program, TOBB
University of Economics and Technology, SogutozuCaddesi No 43 Sogutozu, 06560 Ankara, Turkey
| | - Arpad Mihai Rostas
- National
Institute for Research and Development of Isotopic and Molecular Technologies−
INCDTIM, 67-103 Donat, 400293 Cluj-Napoca, Romania
- E-mail:
| | - Adriana Popa
- National
Institute for Research and Development of Isotopic and Molecular Technologies−
INCDTIM, 67-103 Donat, 400293 Cluj-Napoca, Romania
| | - Dana Toloman
- National
Institute for Research and Development of Isotopic and Molecular Technologies−
INCDTIM, 67-103 Donat, 400293 Cluj-Napoca, Romania
| | - Maria Suciu
- National
Institute for Research and Development of Isotopic and Molecular Technologies−
INCDTIM, 67-103 Donat, 400293 Cluj-Napoca, Romania
| | - Nurdan Demirci Sankir
- Department
of Materials Science and Nanotechnology Engineering, TOBB University of Economics and Technology, SogutozuCaddesi No 43 Sogutozu, 06560 Ankara, Turkey
- Micro
and Nanotechnology Graduate Program, TOBB
University of Economics and Technology, SogutozuCaddesi No 43 Sogutozu, 06560 Ankara, Turkey
- E-mail:
| | - Mehmet Sankir
- Department
of Materials Science and Nanotechnology Engineering, TOBB University of Economics and Technology, SogutozuCaddesi No 43 Sogutozu, 06560 Ankara, Turkey
- Micro
and Nanotechnology Graduate Program, TOBB
University of Economics and Technology, SogutozuCaddesi No 43 Sogutozu, 06560 Ankara, Turkey
- E-mail:
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Dasi G, Lavanya T, Suneetha S, Vijayakumar S, Shim JJ, Thangaraju K. Raman and X-ray photoelectron spectroscopic investigation of solution processed Alq 3/ZnO hybrid thin films. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 265:120377. [PMID: 34537631 DOI: 10.1016/j.saa.2021.120377] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 08/17/2021] [Accepted: 09/05/2021] [Indexed: 06/13/2023]
Abstract
In this study, we characterize the solution processed tris-(8-hydroxyquinoline)aluminum(Alq3)/ZnO hybrid thin films using Raman and X-ray photoelectron spectroscopic (XPS) techniques. Raman studies reveal the sol-gel derived spin-coated ZnO thin film has hexagonal wurtzite structure. The incorporation of Alq3 molecules in the hybrid film results in the formation of bonding onto the surface of highly crystalline ZnO nanoparticles. The XPS confirms the incorporation of Alq3 in the hybrid thin films and corroborates that the Alq3 molecules may be adsorbed onto the surface of ZnO nanoparticles (chemisorption), showing the existence of chemical interaction between Alq3 and ZnO in the hybrid films. These studies support that the chemisorbed Alq3 molecules onto the ZnO nanoparticles may facilitate the charge transfer (non-radiative) between Alq3 and ZnO in the hybrid thin films which will be useful to enhance the optical and electrical properties for the optoelectronic device applications.
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Affiliation(s)
- Gnyaneshwar Dasi
- Organic Optoelectronic Device Lab, Department of Physics, National Institute of Technology, Warangal 506004, Telangana, India
| | - Thyda Lavanya
- Organic Optoelectronic Device Lab, Department of Physics, National Institute of Technology, Warangal 506004, Telangana, India
| | - S Suneetha
- Organic Optoelectronic Device Lab, Department of Physics, National Institute of Technology, Warangal 506004, Telangana, India
| | - S Vijayakumar
- School of Chemical Engineering, Yeungnam University, Gyeongsan, Gyeongbuk 38541, Republic of Korea
| | - Jae-Jin Shim
- School of Chemical Engineering, Yeungnam University, Gyeongsan, Gyeongbuk 38541, Republic of Korea
| | - Kuppusamy Thangaraju
- Organic Optoelectronic Device Lab, Department of Physics, National Institute of Technology, Warangal 506004, Telangana, India; Centre for Advanced Materials (CAM), National Institute of Technology, Warangal 506004, Telangana, India.
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6
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Self-Assembled Hybrid ZnO Nanostructures as Supports for Copper-Based Catalysts in the Hydrogenolysis of Glycerol. Catalysts 2021. [DOI: 10.3390/catal11040516] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
This study describes the use of new ZnO/PAAH hybrid nanomaterials (PAAH = polyacrylic acid) as copper catalyst supports for the hydrogenolysis of glycerol. A study of the synthesis parameters (washing process, temperatures of synthesis and calcination) of these hybrid supports has allowed us to vary their morphology and specific surface area and ultimately the sizes and dispersion of the copper nanoparticles, and to perform a general analysis of their effects on the catalytic performance of the materials. All catalysts were synthesized by the urea deposition-precipitation method (DPU) and were fully characterized to establish a structure–activity relationship. Optimization of the synthesis and catalytic conditions allowed remarkable yields/conversions of the order of 70% for selectivities in 1,2 propanediol of 90%.
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7
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Abbas Alshamsi H, Abbas. Al Bedairy M, Hussein Alwan S. Visible light assisted photocatalytic degradation of Rhodamine B dye on CdSe-ZnO nanocomposite: Characterization and kinetic studies. ACTA ACUST UNITED AC 2021. [DOI: 10.1088/1755-1315/722/1/012005] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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8
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Lekshmi NM, Ashraf PM, Keerthana AK, Thomas SN, Edwin L. Biofouling inhibition for aquaculture cage nets through a coating nano zinc and silicon oxides incorporated with polyaniline. SN APPLIED SCIENCES 2020. [DOI: 10.1007/s42452-020-03788-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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9
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Ji CH, Lee SJ, Oh SY. P3HT-based visible-light organic photodetectors using PEI/PAA multilayers as a p-type buffer layer. RSC Adv 2019; 9:37180-37187. [PMID: 35542281 PMCID: PMC9075515 DOI: 10.1039/c9ra08568h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2019] [Accepted: 10/30/2019] [Indexed: 11/27/2022] Open
Abstract
A low leakage current is critical for achieving organic photodetectors (OPDs) with high detectivity. The insertion of buffer layers is an effective approach for reducing the reverse-biased leakage current. In this study, polyelectrolyte multilayers comprising polyethyleneimine (PEI) and polyacrylic acid (PAA) were introduced by a spin-assisted layer-by-layer technique into an OPD as a p-type buffer layer. Although PEI/PAA multilayers are insulators, when used as a buffer layer in our device, they suppressed the leakage current and also provided a high photocurrent due to the light-assisted tunneling effect. The prepared device configuration was ITO/(PEI/PAA)2/P3HT:PC60BM/Yb/Al. The performances of the OPDs were investigated by measuring the current-voltage characteristics, external quantum efficiency, and transient photocurrent. In addition, the operating mechanism of the OPDs was confirmed by impedance analysis. The device comprising (PEI/PAA)2 showed a specific detectivity of 3.11 × 1012 Jones and a bandwidth of 103.2 kHz at -1 V and 525 nm. This performance is a numerical value that can be used in devices such as a line scan camera. In addition, because this device is fabricated by a low-temperature solution process, flexible and large-area substrates can be used.
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Affiliation(s)
- Chan Hyuk Ji
- Department of Chemical and Biomolecular Engineering, Sogang University Seoul 04107 Republic of Korea
| | - Seon Ju Lee
- Department of Chemical and Biomolecular Engineering, Sogang University Seoul 04107 Republic of Korea
| | - Se Young Oh
- Department of Chemical and Biomolecular Engineering, Sogang University Seoul 04107 Republic of Korea
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Abstract
Zinc oxide (ZnO) is a fascinating wide band gap semiconductor material with many properties that make it widely studied in the material science, physics, chemistry, biochemistry, and solid-state electronics communities. Its transparency, possibility of bandgap engineering, the possibility to dope it into high electron concentrations, or with many transition or rare earth metals, as well as the many structures it can form, all explain the intensive interest and broad applications. This review aims to showcase ZnO as a very versatile material lending itself both to bottom-up and top-down fabrication, with a focus on the many devices it enables, based on epitaxial structures, thin films, thick films, and nanostructures, but also with a significant number of unresolved issues, such as the challenge of efficient p-type doping. The aim of this article is to provide a wide-ranging cross-section of the current state of ZnO structures and technologies, with the main development directions underlined, serving as an introduction, a reference, and an inspiration for future research.
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Güldiken ÇG, Karaosmanoğlu O, Sivas H, Gerçel HF. ZnO microparticle‐loaded chitosan/poly(vinyl alcohol)/acacia gum nanosphere‐based nanocomposite thin film wound dressings for accelerated wound healing. J Appl Polym Sci 2019. [DOI: 10.1002/app.48445] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Çağla Gül Güldiken
- Department of Chemical EngineeringEskişehir Technical University Eskişehir 26 555 Turkey
- Department of Chemical EngineeringAnadolu University Eskişehir Turkey
| | | | - Hülya Sivas
- Department of BiologyEskişehir Technical University Eskişehir 26470 Turkey
- Department of BiologyAnadolu University Eskişehir 26470 Turkey
| | - Hasan Ferdi Gerçel
- Department of Chemical EngineeringEskişehir Technical University Eskişehir 26 555 Turkey
- Department of Chemical EngineeringAnadolu University Eskişehir Turkey
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Zhang Y, Apostoluk A, Theron C, Cornier T, Canut B, Daniele S, Masenelli B. Doping of ZnO inorganic-organic nanohybrids with metal elements. Sci Rep 2019; 9:11959. [PMID: 31420574 PMCID: PMC6697676 DOI: 10.1038/s41598-019-48497-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Accepted: 08/02/2019] [Indexed: 11/09/2022] Open
Abstract
We present a general and in-depth study of the effect of dopants in hybrid inorganic/organic ZnO/PAA (polyacrylic acid) nanocomposites. These dopants vary as much by their ionic size, as by their electronic valence and some of them have been used in ZnO due to their known magnetic and/or optical properties. The chemical nature of the dopants controls their ability to incorporate into ZnO crystal lattice. Three concentrations (0.1%, 1% and 5%) of dopants were studied in order to compare the effect of the concentration with the results obtained previously in the literature. Our results confirm in the first place the trend observed in the literature, that increase in dopant concentration leads to quenching of visible luminescence for ZnO nanocrystals obtained by very different processes. However, the degradation of photoluminescence quantum yield (PL QY) is not inevitable in our nanocomposites. At low doping concentration for some dopants with a small or comparable ionic radius than Zn2+, PL QY can be maintained or even improved, making it possible to tune the visible emission spectrum between 2.17 eV and 2.46 eV. This opens up the prospect of synthesizing phosphors without rare earth for white LEDs, whose spectrum can be tuned to render warm or cold white light, by a chemical synthesis process with a low environmental impact.
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Affiliation(s)
- Y Zhang
- Institut des Sciences Appliquées de Lyon, INL - UMR 5270, Université de Lyon, INSA-Lyon, ECL, UCBL, CPE, CNRS, 69621, Villeurbanne, France
| | - A Apostoluk
- Institut des Sciences Appliquées de Lyon, INL - UMR 5270, Université de Lyon, INSA-Lyon, ECL, UCBL, CPE, CNRS, 69621, Villeurbanne, France
| | - C Theron
- Université Lyon 1, Université de Lyon, IRCE Lyon, CNRS, UMR 5256, 69626, Villeurbanne, France
| | - T Cornier
- Université Lyon 1, Université de Lyon, IRCE Lyon, CNRS, UMR 5256, 69626, Villeurbanne, France
| | - B Canut
- Institut des Sciences Appliquées de Lyon, INL - UMR 5270, Université de Lyon, INSA-Lyon, ECL, UCBL, CPE, CNRS, 69621, Villeurbanne, France
| | - S Daniele
- Université Lyon 1, Université de Lyon, IRCE Lyon, CNRS, UMR 5256, 69626, Villeurbanne, France
| | - B Masenelli
- Institut des Sciences Appliquées de Lyon, INL - UMR 5270, Université de Lyon, INSA-Lyon, ECL, UCBL, CPE, CNRS, 69621, Villeurbanne, France.
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13
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Alves MM, Andrade SM, Grenho L, Fernandes MH, Santos C, Montemor MF. Influence of apple phytochemicals in ZnO nanoparticles formation, photoluminescence and biocompatibility for biomedical applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 101:76-87. [DOI: 10.1016/j.msec.2019.03.084] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Revised: 03/21/2019] [Accepted: 03/24/2019] [Indexed: 12/11/2022]
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14
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Nikhil, Ji G, Prakash R. Composites of Donor-π-Acceptor type configured organic compound and porous ZnO nano sheets as corrosion inhibitors of copper in chloride environment. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.02.026] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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15
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Huang CY, Kang CC, Ma YC, Chou YC, Ye JH, Huang RT, Siao CZ, Lin YC, Chang YH, Shen JL, Lin TY. p-GaN/n-ZnO nanorods: the use of graphene nanosheets composites to increase charge separation in self-powered visible-blind UV photodetectors. NANOTECHNOLOGY 2018; 29:445201. [PMID: 30113910 DOI: 10.1088/1361-6528/aadad8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
ZnO-based heterojunctions have found applications as self-powered ultraviolet photodetectors (PDs). However, high doping levels are not compatible with high mobility for metallic doped ZnO-based PDs so further development has been inhibited. This study demonstrates a method to increase the open-circuit voltage (V oc) that allows keeping a sufficiently high level of mobility of ZnO, using a ZnO nanorod/GaN heterojunction that incorporates graphene nanosheets as the active layer. These hybrid PDs have triple the value for V oc of PDs that have only pure ZnO and better exhibit photo-response characteristics. The results of surface Kelvin probe microscopy and x-ray photoelectron spectrometer show that the complex defects that occur because Zn interstitials form a shallow donor in ZnO are mainly responsible for the increase in the value of V oc. Using this functional nanostructure as an active layer represents a new method for the manufacture of high-performance self-powered PDs.
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Affiliation(s)
- Chun-Ying Huang
- Department of Applied Materials and Optoelectronic Engineering, National Chi Nan University, Nantou 54561, Taiwan
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