Article
Chemistry, Multidisciplinary
Islam Mohammad Shafiqul, Raj Deep, Jie Lin, Toshiyuki Yoshida, Yasuhisa Fujita
Summary: In this study, nitrogen-doped zinc oxide nanoparticles were successfully synthesized using the gas evaporation method with DC arc plasma. The nitrogen concentration was found to have an impact on the Raman spectra and photoluminescence spectra of the nanoparticles.
Article
Chemistry, Physical
Islam Mohammad Shafiqul, Toshiyuki Yoshida, Yasuhisa Fujita
Summary: Heterojunction light-emitting diodes (LEDs) based on p-type ZnO and n-type ZnMgO nanoparticles have been successfully fabricated. The experimental results show that the LEDs with the p-ZnO/n-ZnMgO/GZO structure exhibit better I-V characteristics and lower leakage current compared to the p-ZnO/GZO LEDs, and the emission intensity is improved by adding the ZnMgO NP layer.
Article
Physics, Condensed Matter
Yafei Huang, Katsuhiko Saito, Tooru Tanaka, Qixin Guo
Summary: Eu-doped Ga2O3 film was grown on n-Si substrate by pulsed laser deposition, confirming excellent structural and optical properties. A Ga2O3:Eu/n-Si based LED was fabricated with low driven voltage and red electroluminescence, suggesting the potential for developing full-color displays or lighting technology using Ga2O3 as a host material.
SUPERLATTICES AND MICROSTRUCTURES
(2021)
Article
Chemistry, Multidisciplinary
Jiong Li, Chenghao Duan, Qiaoyun Wen, Ligang Yuan, Shibing Zou, Chang Chen, Weiguang Xie, Dongxu Lin, Christopher C. S. Chan, Kam Sing Wong, Keyou Yan
Summary: By using solution engineered perovskite nanocrystals, efficient integration of electroluminescence and photovoltaic performance in a single device has been achieved, which shows great potential for various applications.
Article
Optics
Haoxuan Huang, Guojiao Xiang, Chengle Song, Zhen He, Jiahui Zhang, Jinming Zhang, Zhiang Yue, Xian Zhang, Peiyao Wang, Yidan Jin, Mengyan Mei, Jinwei Ding, Yongqi Wang, Yang Zhao, Hui Wang
Summary: An ingenious strategy was employed to fabricate a ZnO-related LED with zero emission at blue wavelengths (blue-free). A natural oxide interface layer, possessing remarkable visible emission potential, was introduced into the Au/i-ZnO/n-GaN metal-insulator-semiconductor (MIS) structure for the first time. The unique structure successfully eliminated harmful blue emissions from the ZnO film and achieved remarkable orange electroluminescence.
Article
Materials Science, Multidisciplinary
Jianfeng Zhang, Lin Wang, Xiaoyu Zhang, Guohua Xie, Guohua Jia, Jianhua Zhang, Xuyong Yang
Summary: Metal halide perovskites have been widely used in optoelectronic devices, with green, red, and near-infrared PeLEDs achieving high external quantum efficiencies. However, blue PeLEDs face challenges such as low quantum yields, emission spectrum instability, and difficulties in charge injection. Research is ongoing to improve the efficiency of blue PeLEDs and address these challenges.
Article
Chemistry, Physical
Hailong Wang, Xiaoqi Tang, Guolong Sun, Desui Chen, Zhizhen Ye, Yang Liu, Yizheng Jin
Summary: In this research, the dispersion of ZnO nanoparticles in nonpolar n-octane was achieved by changing the surface ligands from acetates to thiols. This prevented the destruction of perovskite films and inhibited exciton quenching, leading to the successful fabrication of high-performance all-solution-processed green perovskite LEDs. The brightness of the LEDs reached 21,000 cd/m2 and the external quantum efficiency was 6.36%.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Victor Hugo Lopez-Lugo, Manuel Garcia-Hipolito, Arturo Rodriguez-Gomez, Juan Carlos Alonso-Huitron
Summary: The fabrication of NiO films by ultrasonic pyrolysis spray method using nickel acetylacetonate and lithium acetate dihydrate was studied. The structural, morphological, optical, and electrical properties of the films were analyzed. The films showed polycrystalline cubic structure, round-shaped aggregates, low roughness, and p-type electrical conductivity. NiO:Li (10%) films were successfully incorporated into inorganic light emitting diodes.
Article
Materials Science, Multidisciplinary
Islam Mohammad Shafiqul, Raj Deep, Jie Lin, Toshiyuki Yoshida, Yasuhisa Fujita
Summary: This article presents the world's first homojunction UV light-emitting diode (LED) based on both p-type and n-type ZnO nanoparticles. By inserting an n-ZnO NP layer, the emission power of these LEDs is doubled, showing near UV electroluminescence (EL) at room temperature.
PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS
(2022)
Article
Optics
Xiangbo Zhou, Kunjie Ma, Mingming Jiang, Changzong Miao, Caixia Kan, Daning Shi
Summary: High-brightness and high-efficiency low-dimensional light sources have been achieved by synthesizing ZnO microwires with heavily Ga-impurity using chemical vapor deposition methods, and assembling them directly on p-GaN substrate to form heterostructure light-emitting devices. The single microwire acts as a conductance electrode and efficient luminescence layer, emitting bright blue/green lighting under forward bias, and strong broadband white emission under reverse bias, with the ability to switch between colors. This color-switchable light-emitting diode based on single microwires holds promise for miniaturized, smart light sources with independent control over color and brightness.
OPTICS AND LASERS IN ENGINEERING
(2021)
Article
Chemistry, Physical
Xiaoqi Tang, Siyu He, Yunzhou Deng, Xiuyuan Lu, Xitong Zhu, Wangxiao Jin, Yizheng Jin
Summary: Quantum-dot light-emitting diodes (QLEDs) have potential for next-generation display and lighting technologies. A new method of in situ diffusion of magnesium atoms into the ZnO-based electron-transport layers (ETLs) improves the conductivities and luminous efficiencies of QLEDs without sacrificing their quantum efficiencies. This approach can also be applied to other solution-processed LEDs using ZnO-based ETLs.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Applied
M. L. Ligi, A. Abhilash, Sreekanth J. Varma, P. A. Unnikrishnan, S. Prathapan, S. Jayalekshmi
Summary: Two novel segmented block copolymers, NPPV1 and NPPV2, were synthesized and characterized for their substituent effects on properties, structure-property relationships, and suitability for polymer light emitting diodes. The study highlighted the importance of cost-effective synthesis methods in developing polymers for efficient LED design in high frequency blue emission.
Review
Chemistry, Multidisciplinary
Biao Zhao, Zhan'ao Tan
Summary: This article summarizes the advances in the application of CDs in LEDs, including their roles as active emission layer and interface transport layer materials, device structure, and preparation methods. The opportunities and challenges for achieving high-performance CD-based LED devices are also discussed.
Article
Materials Science, Multidisciplinary
Yuwei Liu, Liya Zeng, Danni Wu, Xiaogang Xue, Ping Cai, Xiaowen Zhang
Summary: WSe2 quantum dots with exceptional properties were successfully synthesized using liquid phase exfoliation and hydrothermal reaction. The QDs were characterized using various techniques and exhibited good film morphology and effective carrier injection tailoring. Near ultraviolet and normal ultraviolet organic light-emitting diodes (OLEDs) using WSe2 QDs as emitters showed promising performance. Impedance spectroscopy analysis confirmed the tunability of carrier injection in WSe2 QDs. The research provides a new approach for interface modification and the development of WSe2 QDs applications.
Article
Nanoscience & Nanotechnology
Chengtao Xia, Jinxin Chen, Tong Zhao, Linlin Fan, Deren Yang, Xiangyang Ma
Summary: This study reports on a LED based on erbium-doped zinc oxide/SiO2/n(+)-Si heterostructure, with a significant enhancement of erbium-related emissions achieved through titanium codoping.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Engineering, Electrical & Electronic
H. Kang, Z. Lu, Z. Zhong, T. Zhang
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2018)
Article
Chemistry, Physical
Hong Tao, Zhibin Ma, Guang Yang, Haoning Wang, Hao Long, Hongyang Zhao, Pingli Qin, Guojia Fang
APPLIED SURFACE SCIENCE
(2018)
Article
Materials Science, Multidisciplinary
Xiaoming Mo, Qiuchun Lu, Tao Li, Xiaoma Tao, Chengjun Qi, Yulu Zhou, Qike Jiang, Yifang Ouyang
JOURNAL OF MATERIALS SCIENCE
(2019)
Article
Engineering, Electrical & Electronic
Hong Tao, Haoning Wang, Yuchen Bai, Hao Long, Hongyang Zhao, Qiuming Fu, Zhibin Ma
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2019)
Article
Optics
Xiaoming Mo, Zhuxin Li, Chaofan Liu, Xiaoma Tao, Yulu Zhou, Hao Long, Haoning Wang, Yifang Ouyang
JOURNAL OF LUMINESCENCE
(2019)
Article
Optics
Ji'er Li, Wenbo Li, Jinhua Gu, Zhiyou Zhong, Chunyong Yang, Jin Hou, Hong Tao, Jinlin Du, Xiaodong Li, Lejie Xu, Shugao Wan, Hao Long, Haoning Wang
OPTICS COMMUNICATIONS
(2020)
Article
Nanoscience & Nanotechnology
Jin Hou, Binxian Yang, Xiaohang Li, Can Ma, Bing Wang, Hao Long, Chunyong Yang, Shaoping Chen
JOURNAL OF NANOPHOTONICS
(2020)
Article
Optics
Jingyuan Feng, Chunyong Yang, Jin Hou, Hao Long, Shaoping Chen
OPTICS COMMUNICATIONS
(2020)
Article
Optics
Chunyong Yang, Yue Lan, Xiaoyu Jiang, Hao Long, Jin Hou, Shaoping Chen
OPTICS COMMUNICATIONS
(2020)
Article
Engineering, Electrical & Electronic
Lejie Xu, Jinlin Du, Haoning Wang, Xiaocheng Guo, Kaiyan Tong, Zhiyou Zhong, Chunyong Yang, Jin Hou, Hong Tao, Hao Long, Jing Yang
Summary: Wide-bandgap MgZnO shows great potential in direct-conversion X-ray detectors, as demonstrated by the significantly improved signal-to-noise ratio and response time after Mg doping. The Ag-Mg0.19Zn0.81O-Ag photoconductive detector with optimal Mg contents exhibits high sensitivity, fast response time, and large signal-to-noise ratio.
IEEE PHOTONICS TECHNOLOGY LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Like Wang, Huichen Xu, Fengchang Huang, Xiaoma Tao, Yifang Ouyang, Yulu Zhou, Xiaoming Mo
Summary: This study successfully produced high-output TENGs using a simple and low-cost lotus-leaf-bionic method. The performance of TENGs was evaluated by doping MXene and graphene into the structured PDMS. The results showed that the MXene-doped LLB TENGs had significantly higher output power and humidity sensitivity than graphene-doped devices, making them suitable for smart monitoring systems and health sensors.
Article
Materials Science, Multidisciplinary
Xuesong Li, Yulu Zhou, Fengchang Huang, Xiaoma Tao, Yifang Ouyang, Xiaoming Mo, Jialong Zhao
Summary: In this work, a self-powered ultraviolet photodetector (UV PD) with a heterostructured design using lead-free copper(i) halide Cs3Cu2I5 microcrystals (MCs) was demonstrated. The X chromosome-shaped Cs3Cu2I5 MCs showed blue emission and exhibited high stability. By introducing a thin polymethyl methacrylate (PMMA) film as interface modification, the heterostructured UV PD achieved remarkable responsivity, detectivity, on/off ratio, and response time.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Materials Science, Multidisciplinary
Hong Tao, Haoning Wang, Yuchen Bai, Hongyang Zhao, Qiuming Fu, Zhibin Ma, Hao Long
JOURNAL OF MATERIALS CHEMISTRY C
(2020)
Article
Chemistry, Multidisciplinary
Tao Li, Xiaoming Mo, Chengyu Peng, Qiuchun Lu, Chengjun Qi, Xiaoma Tao, Yifang Ouyang, Yulu Zhou
CHEMICAL COMMUNICATIONS
(2019)
Article
Optics
Zhong Zhi-you, Kang Huai, Lu Zhou, Long Hao, Gu Jin-hua
OPTOELECTRONICS LETTERS
(2018)