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Szymon R, Zielony E, Sobanska M, Stachurski T, Reszka A, Wierzbicka A, Gieraltowska S, Zytkiewicz ZR. Enhancing GaN Nanowires Performance Through Partial Coverage with Oxide Shells. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2401139. [PMID: 39036823 DOI: 10.1002/smll.202401139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Revised: 07/02/2024] [Indexed: 07/23/2024]
Abstract
Core-shell gallium nitride (GaN)-based nanowires offer noteworthy opportunities for innovation in high-frequency opto- and microelectronics. This work delves deeply into the physical properties of crystalline GaN nanowires with aluminum and hafnium oxide shells. Particular attention is paid to partial coverage of nanowires, resulting with exceptional properties. First, the crystal lattice relaxation is observed by X-ray diffraction, photoluminescence, and Raman spectroscopy measurements. A high potential of partial coverage for optoelectronic applications is revealed with photo- and cathodoluminescence spectra along with an exploration of their temperature dependency. Next, the study focuses on understanding the mechanisms behind the observed enhancement of the luminescence efficiency. It is confirmed that nanowires are effectively protected against photoadsorption using partial coatings. This research advances the frontiers of nanotechnology, investigating the benefits of partial coverage, and shedding light on its complex interaction with cores.
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Affiliation(s)
- Radoslaw Szymon
- Department of Experimental Physics, Wroclaw University of Science and Technology, Wybrzeze Wyspianskiego 27, Wroclaw, 50-370, Poland
| | - Eunika Zielony
- Department of Experimental Physics, Wroclaw University of Science and Technology, Wybrzeze Wyspianskiego 27, Wroclaw, 50-370, Poland
| | - Marta Sobanska
- Institute of Physics, Polish Academy of Sciences, Al. Lotnikow 32/46, Warsaw, 02-668, Poland
| | - Tomasz Stachurski
- Department of Statistics, Econometrics and Mathematics, University of Economics in Katowice, 1 Maja 50, Katowice, 40-287, Poland
| | - Anna Reszka
- Institute of Physics, Polish Academy of Sciences, Al. Lotnikow 32/46, Warsaw, 02-668, Poland
| | - Aleksandra Wierzbicka
- Institute of Physics, Polish Academy of Sciences, Al. Lotnikow 32/46, Warsaw, 02-668, Poland
| | - Sylwia Gieraltowska
- Institute of Physics, Polish Academy of Sciences, Al. Lotnikow 32/46, Warsaw, 02-668, Poland
| | - Zbigniew R Zytkiewicz
- Institute of Physics, Polish Academy of Sciences, Al. Lotnikow 32/46, Warsaw, 02-668, Poland
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Babangida AA, Uddin A, Stephen KT, Yusuf BA, Zhang L, Ge D. A Roadmap from Functional Materials to Plant Health Monitoring (PHM). Macromol Biosci 2024; 24:e2300283. [PMID: 37815087 DOI: 10.1002/mabi.202300283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Revised: 10/05/2023] [Indexed: 10/11/2023]
Abstract
Soft bioelectronics have great potential for the early diagnosis of plant diseases and the mitigation of adverse outcomes such as reduced crop yields and stunted growth. Over the past decade, bioelectronic interfaces have evolved into miniaturized conformal electronic devices that integrate flexible monitoring systems with advanced electronic functionality. This development is largely attributable to advances in materials science, and micro/nanofabrication technology. The approach uses the mechanical and electronic properties of functional materials (polymer substrates and sensing elements) to create interfaces for plant monitoring. In addition to ensuring biocompatibility, several other factors need to be considered when developing these interfaces. These include the choice of materials, fabrication techniques, precision, electrical performance, and mechanical stability. In this review, some of the benefits plants can derive from several of the materials used to develop soft bioelectronic interfaces are discussed. The article describes how they can be used to create biocompatible monitoring devices that can enhance plant growth and health. Evaluation of these devices also takes into account features that ensure their long-term durability, sensitivity, and reliability. This article concludes with a discussion of the development of reliable soft bioelectronic systems for plants, which has the potential to advance the field of bioelectronics.
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Affiliation(s)
- Abubakar A Babangida
- Institute of Intelligent Flexible Mechatronics, School of Mechanical Engineering, Jiangsu University, Zhenjiang, 212013, P. R. China
| | - Azim Uddin
- Institute for Composites Science Innovation (InCSI), School of Materials Science and Engineering, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, P. R. China
| | - Kukwi Tissan Stephen
- School of Mechanical Engineering, Northwestern Polytechnical University, Xi'an, 710072, P. R. China
| | - Bashir Adegbemiga Yusuf
- Institute of Intelligent Flexible Mechatronics, School of Mechanical Engineering, Jiangsu University, Zhenjiang, 212013, P. R. China
| | - Liqiang Zhang
- Institute of Intelligent Flexible Mechatronics, School of Mechanical Engineering, Jiangsu University, Zhenjiang, 212013, P. R. China
- Center of Energy Storage Materials & Technology, College of Engineering and Applied Sciences, Jiangsu Key Laboratory of Artificial Functional Materials, National Laboratory of Solid-State Microstructures, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, Jiangsu, 210093, China
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, Jiangnan University, Wuxi, Jiangsu, 214126, China
| | - Daohan Ge
- Institute of Intelligent Flexible Mechatronics, School of Mechanical Engineering, Jiangsu University, Zhenjiang, 212013, P. R. China
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Carpenter A, Murray J, Loftus LM, Martinez A, Turner R, Banerjee P, Guha S. Nonlinear optical properties and carrier recombination lifetime of GaN. APPLIED OPTICS 2023; 62:1152-1159. [PMID: 36821212 DOI: 10.1364/ao.479676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 12/31/2022] [Indexed: 06/18/2023]
Abstract
Nonlinear optical properties of a selection of gallium nitride samples have been measured using picosecond and nanosecond duration laser pulses at 532 nm. The values of the two-photon absorption coefficient, free carrier absorption cross section, and free carrier refraction cross section are determined along with the recombination lifetime of photogenerated carriers. The effect of hot isostatic pressing on these properties in samples with linear absorption at the band edge due to defects is explored.
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Ding S, Yin T, Zhang S, Yang D, Zhou H, Guo S, Li Q, Wang Y, Yang Y, Peng B, Yang R, Jiang Z. Fast-speed, Highly Sensitive, Flexible Humidity Sensors Based on a Printable Composite of Carbon Nanotubes and Hydrophilic Polymers. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:1474-1481. [PMID: 36641772 DOI: 10.1021/acs.langmuir.2c02827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Carbon nanotubes (CNTs) are a promising material for humidity sensors and wearable electronics due to their solution capability, good flexibility, and high conductivity. However, the performance of CNT-based humidity sensors is limited by their low sensitivity and slow response. Herein CNTs and hydrophilic polymers were mixed to form a composite. The hydrophilicity of the polymers and the network structure of the CNTs empowered the humidity sensors with a high response of 171% and a fast response/recovery time of 23 s/10 s. Owing to the sticky and flexible polymers, the humidity sensors showed strong adhesion to the PET substrate and exhibited outstanding bending durability. Furthermore, the flexible humidity sensor was applied to monitor human breathing and detect finger movements and handshaking.
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Affiliation(s)
- Su Ding
- School of Advanced Materials and Nanotechnology, Xidian University, Xi'an 710126, China
| | - Tong Yin
- School of Advanced Materials and Nanotechnology, Xidian University, Xi'an 710126, China
| | - Shucheng Zhang
- School of Advanced Materials and Nanotechnology, Xidian University, Xi'an 710126, China
| | - Dingyi Yang
- School of Advanced Materials and Nanotechnology, Xidian University, Xi'an 710126, China
| | - Houlin Zhou
- School of Advanced Materials and Nanotechnology, Xidian University, Xi'an 710126, China
| | - Shouchen Guo
- School of Electronic Engineering, Xidian University, Xi'an 710126, China
| | - Qikun Li
- School of Advanced Materials and Nanotechnology, Xidian University, Xi'an 710126, China
| | - Yong Wang
- School of Advanced Materials and Nanotechnology, Xidian University, Xi'an 710126, China
| | - Yang Yang
- Institute of Deep-Sea Science and Engineering, Chinese Academy of Science, Guangzhou 572000, China
| | - Biaolin Peng
- School of Advanced Materials and Nanotechnology, Xidian University, Xi'an 710126, China
| | - Rusen Yang
- School of Advanced Materials and Nanotechnology, Xidian University, Xi'an 710126, China
| | - Zhi Jiang
- Innovative Center for Flexible Devices (iFLEX), School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798, Singapore
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High-performance nitrogen dioxide gas sensor for ppb-level detection based on GaN nanoshuttles. Microchem J 2022. [DOI: 10.1016/j.microc.2022.108183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Khattak Z, Sajid M, Javed M, Zeeshan Rizvi HM, Awan FS. Mass-Producible 2D Nanocomposite-Based Temperature-Independent All-Printed Relative Humidity Sensor. ACS OMEGA 2022; 7:16605-16615. [PMID: 35601310 PMCID: PMC9118384 DOI: 10.1021/acsomega.2c00850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 04/27/2022] [Indexed: 06/15/2023]
Abstract
Relative humidity sensors are widely studied under the categories of both environmental and biosensors owing to their vast reaching applications. The research on humidity sensors is mainly divided into two concentration areas including novel material development and novel device structure. Another approach focuses on the development of printed sensors with performance comparable to the sensors fabricated via conventional techniques. The major challenges in the research on relative humidity sensors include the range of detection, sensitivity (especially at lower %RH), transient response time, and dependence on temperature. Temperature dependence is one of the least studied parameters in relative humidity sensor development. In this work, relative humidity sensors were fabricated using all-printed approaches that are also compatible with mass production, resulting in low cost and easy development. Laser-induced graphene (LIG)-based printed electrodes were used as the transducers, while the 2D MoS2 and graphene nanocomposite was used as the active layer material with the built-in property of temperature independence. The exfoliation process of 2D MoS2 was based on wet grinding, while graphene for the active layer was obtained by scratching the graphene grown on the polyimide (PI) surface via laser ablation. The resulting sensors showed an excellent output response for a full range of 0%RH to 100%RH, having no dependence on the surrounding temperature, and excellent response and recovery times of 4 and 2 s, respectively. The developed sensors can be confidently employed for a wide range of humidity sensing applications where the temperature of the surrounding environment is not constant.
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Abstract
Accurate detection and quantitative evaluation of environmental water in vapor and liquids state expressed as humidity and precipitation play key roles in industrial and scientific applications. However, the development of supporting tools and techniques remains a challenge. Although optical methods such as IR and LASER could detect environmental water in the air, their apparatus is relatively huge. Alternatively, solid detection field systems (SDFSs) could recently lead to a revolution in device downsizing and sensing abilities via advanced research, mainly for materials technology. Herein, we present an overview of several SDFS based sensing categories and their core materials mainly used to detect water in atmosphere, either in the vapor or liquid phase. We considered the governing mechanism in the detection process, such as adsorption/desorption, condensation/evaporation for the vapor phase, and surface attach/detach for the liquid phase. Sensing categories such as optical, chilled mirror, resistive, capacitive, gravimetric sensors were reviewed together with their designated tools such as acoustic wave, quartz crystal microbalance, IDT, and many others, giving typical examples of daily based real scientific applications.
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Khan MU, Hassan G, Shaukat RA, Saqib QM, Chougale MY, Kim J, Bae J. Wide range and highly linear signal processed systematic humidity sensor array using Methylene Blue and Graphene composite. Sci Rep 2021; 11:16665. [PMID: 34404831 PMCID: PMC8371138 DOI: 10.1038/s41598-021-95977-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Accepted: 07/29/2021] [Indexed: 11/25/2022] Open
Abstract
This paper proposes a signal processed systematic 3 × 3 humidity sensor array with all range and highly linear humidity response based on different particles size composite inks and different interspaces of interdigital electrodes (IDEs). The fabricated sensors are patterned through a commercial inkjet printer and the composite of Methylene Blue and Graphene with three different particle sizes of bulk Graphene Flakes (BGF), Graphene Flakes (GF), and Graphene Quantum Dots (GQD), which are employed as an active layer using spin coating technique on three types of IDEs with different interspaces of 300, 200, and 100 µm. All range linear function (0–100% RH) is achieved by applying the linear combination method of nine sensors in the signal processing field, where weights for linear combination are required, which are estimated by the least square solution. The humidity sensing array shows a fast response time (Tres) of 0.2 s and recovery time (Trec) of 0.4 s. From the results, the proposed humidity sensor array opens a new gateway for a wide range of humidity sensing applications with a linear function.
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Affiliation(s)
- Muhammad Umair Khan
- Department of Ocean System Engineering, Jeju National University, 102 Jejudaehakro, Jeju, 63243, Korea
| | - Gul Hassan
- Department of Ocean System Engineering, Jeju National University, 102 Jejudaehakro, Jeju, 63243, Korea.,Centre for Advanced Electronics and Photovoltaic Engineering (CAEPE), International Islamic University, H-10, Islamabad, 44000, Pakistan
| | - Rayyan Ali Shaukat
- Department of Ocean System Engineering, Jeju National University, 102 Jejudaehakro, Jeju, 63243, Korea
| | - Qazi Muhammad Saqib
- Department of Ocean System Engineering, Jeju National University, 102 Jejudaehakro, Jeju, 63243, Korea
| | - Mahesh Y Chougale
- Department of Ocean System Engineering, Jeju National University, 102 Jejudaehakro, Jeju, 63243, Korea
| | - Jungmin Kim
- Department of Ocean System Engineering, Jeju National University, 102 Jejudaehakro, Jeju, 63243, Korea
| | - Jinho Bae
- Department of Ocean System Engineering, Jeju National University, 102 Jejudaehakro, Jeju, 63243, Korea.
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