Article
Materials Science, Multidisciplinary
H. Wang, J. Ma, L. Cong, H. Zhou, P. Li, L. Fei, B. Li, H. Xu, Y. Liu
Summary: This paper presents a flexible metal-semiconductor-metal (MSM) structure ultraviolet (UV) photodetector enhanced by piezoelectric effect, which improves its performance by applying strain, and investigates the mechanism of improvement for the a-Ga2O3/ZnO heterojunction photodetector.
MATERIALS TODAY PHYSICS
(2021)
Article
Chemistry, Multidisciplinary
Kai Tang, Mingming Jiang, Bingwang Yang, Tong Xu, Zeng Liu, Peng Wan, Caixia Kan, Daning Shi
Summary: This study presents a homojunction ultraviolet photodetector by using p-type Sb-doped ZnO microwire and n-type ZnO layer. By engineering the band alignment of the p-ZnO:Sb/n-ZnO homojunction, the optimized photodetector shows enhanced ultraviolet detection capabilities with a light on/off ratio of 1.6 x 10(8), responsivity over 267 mA W-1, and specific detectivity of approximately 1.2 x 10(14) Jones. This research not only synthesizes stable p-type ZnO, but also provides substantial opportunities for developing high-performance ZnO homojunction optoelectronic devices.
Article
Polymer Science
Xuanzhen Zhang, Yunhui Feng, Fangbao Fu, Huan Wang
Summary: In this work, a highly sensitive UV photodetector with a unique sandwich structure was constructed. It exhibited excellent photocurrent responsiveness and photoconductivity, attributed to the large specific surface area of ZnO nanosheets and the p-n junction formed between P-type PANI nano-porous film and N-type ZnO nanosheets.
Article
Engineering, Electrical & Electronic
Ruchi Singh, Ritesh Bhardwaj, Gaurav Siddharth, Pawan Kumar, Shaibal Mukherjee
Summary: The study demonstrates that in ZnO-based homojunction p-i-n UV photodetectors, increasing the thickness of the top p-type layer leads to a decrease in peak responsivity, while increasing the thickness of the i-ZnO layer results in an increase in responsivity. Additionally, replacing the p-type layer material can significantly improve responsivity and dark current performance.
IEEE SENSORS JOURNAL
(2021)
Article
Engineering, Electrical & Electronic
Jiang Li, Rui Wang, Zhaowen Bai, Gang Wang, Xinmiao Zhang, Junsheng Yuan, Jinyuan Zhou, Erqing Xie, Xiaojun Pan
Summary: In this study, photoelectrochemical (PEC) type ultraviolet photodetectors (UVPDs) based on KNbO3/ZnO heterojunctions were fabricated and found to possess excellent performance and appropriate band structures for UV radiation monitoring. Compared to PEC UVPDs based on pure ZnO and KNbO3, the developed PEC UVPDs based on KNbO3/ZnO showed higher performances with a responsivity of 0.1 A/W, rise and decay times of 8 ms and 11 ms, and a linear wavelength response from 320 to 400 nm. These results highlight the high sensitivity, responsivity, and rapid response of the PEC UVPDs based on KNbO3/ZnO heterojunctions, suggesting their great potential for UV detection.
SENSORS AND ACTUATORS A-PHYSICAL
(2023)
Article
Chemistry, Physical
Hongyu Ma, Kewei Liu, Zhen Cheng, Zhiyao Zheng, Yinzhe Liu, Peixuan Zhang, Xing Chen, Deming Liu, Lei Liu, Dezhen Shen
Summary: The study focuses on the response speed and dark current issues of ZnO quantum dots photodetector, demonstrating improved performance by adjusting reaction conditions. The device shows excellent performance under UV light illumination, providing insights for the design of high-performance photodetectors based on ZnO QDs.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Optics
Nan Wang, Dayong Jiang, Man Zhao
Summary: A dual-band photodetector with light trapping effect was fabricated using a hydrothermal method, with the addition of Mg to form an alloy and introduce nanowires for increased responsivity. The ZnO nanowires photodetector showed significantly improved performance with higher responsivity, larger detectivity, and enhanced EQE, indicating potential for future optoelectronic applications.
Article
Chemistry, Multidisciplinary
Yanan Zhang, Shujie Jiao, Junhua Zhang, Shuo Liu, Dongbo Wang, Shiyong Gao, Jinzhong Wang
Summary: A GaOOH/Ga2O3 heterojunction was achieved through a one-step annealing treatment, and its solar blind photoresponse performance was characterized using photoelectrochemical detectors. The results showed that the GaOOH/Ga2O3 heterojunction detector exhibited superior performance in pure solar-blind ultraviolet detection.
Article
Engineering, Electrical & Electronic
Douglas Henrique Vieira, Gabriel Leonardo Nogueira, Rogerio Miranda Morais, Lucas Fugikawa-Santos, Keli Fabiana Seidel, Neri Alves
Summary: In this study, a transparent and printed ZnO-based electrolyte-gated transistor (EGT) using cellulose electrolyte was reported. It showed low-voltage operation, high on-state current, and high field-effect mobility. The device exhibited a multiparametric response as a UV sensor when exposed to different levels of UV irradiance.
SENSORS AND ACTUATORS A-PHYSICAL
(2022)
Article
Chemistry, Physical
Weidong Song, Zhong Liang, Yue Guo, Xingjun Luo, Xin He, Qing Liu, Yiming Sun, Shuti Li
Summary: In this work, Ti3C2 nanoflakes were used to enhance the deep-UV band absorption of ZnO photodetectors. The anchored nanoflakes formed van der Waals heterojunctions with ZnO, resulting in surface depletion and passivation, which effectively reduced dark current and improved photocurrent. The Ti3C2 nanoflakes anchored ZnO photodetector exhibited significantly enhanced photoresponse, particularly in the deep-UV range.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Multidisciplinary
Chang Liu, Xiaodong Li, Tiangui Hu, Wenkai Zhu, Faguang Yan, Tiesheng Wu, Kaiyou Wang, Lixia Zhao
Summary: Integrating GaN nanopillars with graphene/GaN/Ti/Au photodetector enhances detection performance. The nanopillars reduce dark current by decreasing contact area between GaN and graphene electrode. When illuminated with UV light, the nanopillars create enhanced electric field and increase UV light absorption and photocurrent.
Article
Materials Science, Multidisciplinary
Jinchun Jiang, Yujie Guo, Xiaoliang Weng, Fangchao Long, Yun Xin, Yangfan Lu, Zhizhen Ye, Shuangchen Ruan, Yu-Jia Zeng
Summary: This study demonstrates that the Sb2Se3/ZnO photodetector has great potential for use in bipolar signal communications in wireless, filterless, and wearable optoelectronic systems. It also lays the groundwork for designing and optimizing flexible dual-polarity photodetectors from arbitrary hetero-assemblies.
JOURNAL OF MATERIALS CHEMISTRY C
(2021)
Article
Chemistry, Physical
Yinhua Lin, Jiexin Zou, Wenliang Wang, Xingyue Liu, Junning Gao, Zhenya Lu
Summary: A self-powered ultraviolet photodetector with high sensitivity and good wavelength selectivity was fabricated using a combination of hydrothermal and RF magnetron sputtering methods. The insertion of a CuO layer significantly improved the device performance and increased the responsivity by almost 12 times. The self-powered photodetector shows great potential for UV sensor applications.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Dan Kuang, Yan Li, Yanfei Gao, Jian Guo, Xuyang Li, Shuang Xu, Bin Liu, Xianwen Liu, Yue Zhang, Zhinong Yu
Summary: This study focused on preparing ZnO nanorod arrays on flexible substrates using a hydrothermal method with the addition of PEI to enhance the performance of the ultraviolet photodetectors. Characterization of the morphology, crystallinity, optical properties, and chemical composition showed that the introduction of PEI adjusted the growth process of ZnO nanorod arrays and improved their optoelectronic performance. The PEI-assisted ZnO nanorod arrays photodetectors exhibited higher photo to dark current ratio, responsivity, and quicker time response speed compared to pure ZnO, along with outstanding mechanical flexibility and robustness under bending tests.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Multidisciplinary
Yuxiao Zheng, Xueying Xu, Fengrui Li, Weilin Chen, Jian Gong, Chunlei Wang
Summary: This work presents a transparent photodetector based on binary metal oxides, where the addition of polyoxometalate (POM) modified ZnO NWs in the top layer increases UV absorption and creates an interlayer p-n junction, achieving high transparency and efficient photodetection capabilities.
MATERIALS CHEMISTRY FRONTIERS
(2021)
Article
Chemistry, Physical
Qi-Wen Chen, Ze-Qing Guo, Jian-Ping Zhou
Summary: Multifunctional continuous solid solutions NFMTO-x were successfully synthesized via a one-step hydrothermal method by controlling the ratio of Mg and Fe. The NFMTO-x materials exhibited enhanced visible light response, effective adsorption and photocatalytic degradation of organic pollutants, CO2 methanation capability, and easy recyclability due to their magnetic properties. This research provides a significant multifunctional material for water purification.
APPLIED SURFACE SCIENCE
(2024)
Review
Chemistry, Physical
George E. Stan, Maziar Montazerian, Adam Shearer, Bryan W. Stuart, Francesco Baino, John C. Mauro, Jose M. F. Ferreira
Summary: Bioactive glasses have the ability to form strong bonds with tissues and release therapeutic ions. However, their biomechanical compatibility limits their use in load-bearing applications. The use of magnetron sputtering technology to fabricate BG coatings shows promise in improving their efficacy and potential for application.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zhaoxuan Wang, Zhicheng Yan, Zhigang Qi, Yu Feng, Qi Chen, Ziqi Song, Meng Huang, Peng Jia, Ki Buem Kim, Weimin Wang
Summary: The corrosion behavior of Fe-60 and Fe-83 ribbons in 0.6 M NaCl was studied. Fe-60 exhibited a local corrosion mode and formed a stable passivation film with higher corrosion resistance, while Fe-83 showed a combination of local and global corrosion modes and had lower corrosion resistance. Controlling the precipitation of nanocrystalline phases and increasing the POx content in the passivation film significantly improved the corrosion resistance of Fe-based glassy alloys.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hao-Kai Peng, Sheng-Yen Zheng, Wei-Ning Kao, Ting-Chieh Lai, Kai-Sheun Lee, Yung- Hsien Wu
Summary: This study investigates the effects of high energy/fluence proton radiation on the performance of HfZrOx-based FeFETs memory with different Zr content. The results show that the characteristics of FeFETs are influenced by proton radiation, and the extent of the influence depends on the Zr content. FeFETs with 50% Zr content exhibit minimal changes in memory window and demonstrate good endurance and retention performance.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zongyi Yue, Guangyi Wang, Zengguang Huang, Sihua Zhong
Summary: In this study, AZO and ITO films were successfully tuned as excellent passivation layers for c-Si surfaces, achieving effective minority carrier lifetime and outstanding optical properties through the optimization of annealing temperature and interfacial silicon oxide.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Martin Hruska, Jan Kejzlar, Jaroslav Otta, Premysl Fitl, Michal Novotny, Jakub Cizek, Oksana Melikhova, Matej Micusik, Peter Machata, Martin Vrnata
Summary: This paper presents a detailed study on the hydrogen sensing capabilities of highly nanoporous black gold films. The films exhibit fast response and recovery times at low temperatures. Different levels of nanoporosity were prepared and tested to investigate the sensing properties, and it was found that nanoporous black gold is suitable for hydrogen sensing. The sensitivity of the film depends on its nanoporosity.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yupu Wang, Gaofeng Teng, Chun To Yiu, Junyi Zhu
Summary: In the study of BM-SCO and HSCO thin films, it was found that H vacancies tend to prefer sites near the external surface or oxygen vacancy channels (OVCs), while H interstitials prefer sites of oxygen on a layer that contains six-fold coordinated Co. These findings not only enrich the understanding of complex surface phenomena of defect formation but also provide an explanation for the reversibility during phase transformation.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jiafeng Lu, Linping Teng, Qinxiao Zhai, Chunhua Wang, Matthieu Lancry, Ye Dai, Xianglong Zeng
Summary: In this study, we achieved full control of fiber nanograting orientation by manipulating laser polarization, and tailored space variant fiber nanogratings, which expanded the diversity in fiber nanograting engineering.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yibo Liu, Yujie Tao, Yue Liu, Qi Sun, Qinrong Lin, Kexin Kang, Qinghua Zhang, Qingjie Sun
Summary: This study investigates the wettability of the Ti-Cu-Fe multi-metal system, specifically the wetting behaviors of CuSi3 droplets on TC4 and 304SS plates. The results show that the CO2 + Ar gas atmosphere significantly affects interfacial mass transfer, thus influencing the wettability of the systems.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jimei Liu, Fei Wang, Rong Guo, Yuqi Liu, Mengyu Zhang, Jaka Sunarso, Dong Liu
Summary: This study developed Co/MXene composites with anti-corrosion properties by varying the cobalt content. These composites exhibited remarkable electromagnetic absorption performance and high resistance to corrosion under various corrosive conditions. The study also revealed the mechanism of electron transfer from cobalt to MXene and the electromagnetic dissipation behavior originated from polarization loss alone.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Moujie Huang, Yongsong Ma, Jingbo Yang, Lingyun Xu, Hangqi Yang, Miao Wang, Xin Ma, Xin Xia, Junhao Yang, Deli Wang, Chuang Peng
Summary: Strong metal-support interactions (SMSIs) are important for enhancing catalytic activities and stability in thermal catalysis. This study demonstrates a method to create SMSIs in electrocatalysis using carbon nanotubes and Ru nanoparticles, resulting in excellent catalytic activity and stability.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Ravi Trivedi, Brinti Mondal, Nandini Garg, Brahmananda Chakraborty
Summary: This study explores the potential of biphenylene as a nanocarrier for the delivery of the anticancer drug cisplatin. It is found that biphenylene offers physical stability, rapid release rate, solubility, and bio-compatibilities compared to other nanocarriers. The adsorption of cisplatin on the surface of biphenylene involves charge transfer from cisplatin to biphenylene. The drug is shown to be released at body temperature in an acidic environment. Biphenylene also exhibits excellent cytotoxicity activity and cellular uptake of the drug. Overall, biphenylene shows promise as a potential nanocarrier for cisplatin delivery.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hyun Jeong, Hyeong Chan Suh, Ga Hyun Cho, Rafael Salas-Montiel, Hayoung Ko, Ki Kang Kim, Mun Seok Jeong
Summary: In this study, a potential platform to enhance Raman scattering and increase the number of observable Raman modes in monolayer transition metal dichalcogenides (TMDs) was proposed. The platform consisted of large-scale arrays of gold micropillars (MPs), which were able to enhance the Raman intensity of TMDs and make difficult-to-detect Raman modes observable. The platform showed great industrial advantages and wide applicability due to its low cost, simple process, large controllable area, and short process time.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yasir Abbas, Shafqat Ali, Sajjad Ali, Waqar Azeem, Zareen Zuhra, Haoliang Wang, Mohamed Bououdina, Zhenzhong Sun
Summary: In this study, FeOx@SPNO-C core-shell nanospheres as a catalyst for degradation of sulfamethoxazole (SMX) were successfully synthesized. The synergistic interaction between FeOx and SPNO-C, high carbon charge density, and the presence of C = O groups and N/Fe-Nx sites were found to be key factors for the enhanced degradation of SMX.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Qiaoting Yang, Yuxiao Gong, Yan Qian, Zhou-Qing Xiao, Serge Cosnier, Xue-Ji Zhang, Robert S. Marks, Dan Shan
Summary: This study proposes a hierarchical confinement strategy to design Prussian blue nanoparticles (PB NPs) with satisfactory electrocatalytic ability and stability. The catalytic synthesis of PB NPs is achieved through a hydrothermal process, and the as-prepared PB@NH2MIL exhibits efficient electronic transmission and enhanced electrocatalytic properties.
APPLIED SURFACE SCIENCE
(2024)