Article
Chemistry, Physical
Haolin Li, Jianwei Ding, Shuangfei Cai, Wei Zhang, Xining Zhang, Ting Wu, Chen Wang, Morten Foss, Rong Yang
Summary: This study fabricates noble metal-semiconductor hybrid Au/ZnO nanowires photocatalysts and characterizes them comprehensively. Compared with ZnO nanowires, Au/ZnO heterostructures exhibit significantly enhanced photocatalytic performance, providing a feasible strategy to prepare plasmonic photocatalysts.
APPLIED SURFACE SCIENCE
(2022)
Review
Chemistry, Physical
Guangruixing Zou, Ziming Chen, Zhenchao Li, Hin-Lap Yip
Summary: Metal halide perovskites are promising candidates for lighting applications due to their excellent optoelectronic properties. However, blue perovskite LEDs still lag behind green and red counterparts in terms of efficiency and stability. Strategies such as composition engineering, dimensional engineering, and the use of perovskite nanocrystals and quantum dots are being explored to improve blue perovskite LED performance.
ACTA PHYSICO-CHIMICA SINICA
(2021)
Article
Chemistry, Multidisciplinary
Subeesh Madayanad Suresh, Le Zhang, David Hall, Changfeng Si, Gaetano Ricci, Tomas Matulaitis, Alexandra M. Z. Slawin, Stuart Warriner, Yoann Olivier, Ifor D. W. Samuel, Eli Zysman-Colman
Summary: NOBNacene is a rare example of a p- and n-doped nonacene compound with linearly extended ladder-type multiresonant thermally activated delayed fluorescence (MR-TADF) emission. It exhibits efficient narrow deep blue emission with a PL wavelength of 410 nm, FWHM of 38 nm, PL quantum yield of 71%, and delayed lifetime of 1.18 ms. The OLED using NOBNacene as the emitter shows a comparable electroluminescence spectrum with a peak at 409 nm and a maximum external quantum efficiency (EQE(max)) of 8.5% at CIE coordinates of (0.173, 0.055). The EQE(max) is increased to 11.2% with 3 wt% doping of the emitter in the emissive layer, resulting in a slightly broadened electroluminescence spectrum with CIE coordinates of (0.176, 0.068).
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Review
Chemistry, Inorganic & Nuclear
Pengbo Han, Erhan Xia, Anjun Qin, Ben Zhong Tang
Summary: This review summarizes the recent developments in nondoped OLEDs based on blue and deep blue aggregation-induced emission (AIE) materials, and discusses the molecular design strategies, photophysical properties, and electroluminescent properties of these AIE materials as emitting layers. Furthermore, the challenges and prospects of blue and deep blue AIE materials for the fabrication of nondoped OLEDs are briefly discussed.
COORDINATION CHEMISTRY REVIEWS
(2022)
Article
Chemistry, Applied
Lu Zhou, Wen-Cheng Chen, Ji-Hua Tan, Shaomin Ji, Qingdan Yang, Yingxiao Mu, Hao-Li Zhang, Jingwei Zhao, Yanping Huo, Chun-Sing Lee
Summary: Two donor-acceptor type blue luminophores based on an azaryl-ketone derivative have been developed for OLEDs, showing aggregation-induced emission and charge transfer characteristics. They exhibit versatile applications as emitters in blue OLEDs and hosts in red phosphorescent devices, with decent performance and mild efficiency roll-offs.
Article
Chemistry, Multidisciplinary
Soon-Hwan Kwon, Tae-Hyeon Kim, Sang-Min Kim, Semi Oh, Kyoung-Kook Kim
Summary: By utilizing gold nanoparticles and a TiO2 shell layer, the gas sensor performance can be significantly enhanced, leading to increased sensitivity and faster response times.
Article
Chemistry, Multidisciplinary
Meihuan Liu, Jiamiao Jiang, Haixin Tan, Bin Chen, Juanfeng Ou, Hong Wang, Jia Sun, Lu Liu, Fei Wang, Junbin Gao, Chang Liu, Fei Peng, Yun Liu, Yingfeng Tu
Summary: The abuse of antibiotics leads to antibiotic residues in aquatic environments, causing environmental pollution. In this study, a light-driven nanomotor system was developed that efficiently degrades antibiotics. The nanomotors removed a significant amount of antibiotics in a short period of time and displayed stable catalytic activity.
Article
Chemistry, Physical
Yu-Cheng Chang, Yung-Chang Chiao, Ya-Xiu Fun
Summary: In this study, Cu2O/CuS/ZnS nanocomposite was successfully synthesized and characterized for blue LED-light-induced photocatalytic hydrogen production. The optimized nanocomposite showed a higher photocatalytic hydrogen evolution efficiency and maintained good performance in cycle stability.
Article
Chemistry, Multidisciplinary
Yu Fu, Swapnadeep Poddar, Beitao Ren, Ying Xie, Qianpeng Zhang, Daquan Zhang, Bryan Cao, Yunqi Tang, Yucheng Ding, Xiao Qiu, Lei Shu, Jin-Feng Liao, Dai-Bin Kuang, Zhiyong Fan
Summary: Color tunability of perovskite light-emitting diodes (PeLEDs) by mixed halide compositional engineering is achieved through strongly quantum-confined perovskite nanowires. The work successfully demonstrates the fabrication of color-tunable PeLEDs, particularly blue PeLEDs.
Article
Chemistry, Multidisciplinary
Yilin Yin, Jingchao Liu, Zengnan Wu, Ting Zhang, Zenghe Li
Summary: In this study, Cu2O-doped ZnO photocatalysts with a porous structure were successfully prepared by calcination using ZIF-8 as the precursor, demonstrating a significant degradation efficiency for tetracycline hydrochloride under visible light irradiation. The introduction of p-n heterojunction and increase of oxygen vacancies in Cu2O-doped ZnO reduce the band gap and electron-hole recombination, thereby improving the photocatalytic efficiency for tetracycline hydrochloride.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Chemistry, Physical
Yanyan He, Lulu Zhang, Guantong Chen, Yuanhong Liu, Shuangshuang Shi, Panpan Jiang, Jie Ding, Shu Xu, Chong Geng
Summary: A facile one-pot strategy to grow crystalline ZnO/SiO2 dual-layer encapsulation on CsPbBr3 perovskite nanocrystals (PNCs) has been reported. The encapsulation provides robust surface passivation to withstand the harsh conditions in hybrid light-emitting diodes (LEDs). The ZnO/SiO2 encapsulated PNCs show excellent stability, preserving 100% of their initial photoluminescence intensity after 500 hours of continuous irradiation.
APPLIED SURFACE SCIENCE
(2023)
Article
Polymer Science
Hameed Al-Attar, Aula A. Alwattar, Athir Haddad, Bassil A. Abdullah, Peter Quayle, Stephen G. Yeates
Summary: This study demonstrates the use of polylactic acid (PLA) as a host matrix for the active emissive layer in OLED devices. Two fluorescent PLA derivatives were synthesized and used to fabricate OLEDs with promising properties. The research provides evidence that OLEDs can be constructed from PLA, a readily available and renewable bio-source.
POLYMER INTERNATIONAL
(2021)
Article
Nanoscience & Nanotechnology
Jose P. S. Cardoso, Maria Rosario Correia, Remy Vermeersch, Dirkjan Verheij, Gwenole Jacopin, Julien Pernot, Teresa Monteiro, Susana Cardoso, Katharina Lorenz, Bruno Daudin, Nabiha Ben Sedrine
Summary: Europium-implanted AlN nanowire pn junctions were annealed at 1000 degrees C and showed increased Eu3+ luminescence intensity with higher fluence, while the contribution from defect-related emissions decreased. This study demonstrates the potential of using Eu-implanted AlN NWs for developing red LEDs with improved luminescence properties.
ACS APPLIED NANO MATERIALS
(2022)
Article
Optics
B. Sundarakannan, M. Kottaisamy
Summary: The red-emitting zinc oxide material prepared exhibits a broad band emission under blue light excitation with a peak emission at 540 nm and strong infrared light absorption. When excited by blue LEDs, it emits bright broad band red light with a peak emission at 625 nm and a CIE chromaticity value of (x=0.65, y=0.37).
JOURNAL OF LUMINESCENCE
(2022)
Article
Chemistry, Multidisciplinary
Chibuzo Onwukaeme, Bohae Lee, Han-Youl Ryu
Summary: This study investigated the temperature dependence of electron leakage current in the AlGaN electron-blocking layer (EBL) of an InGaN/GaN blue light-emitting diode (LED) structure. Experimental results showed that the electron leakage current decreased significantly as the temperature increased, and this was consistent with simulation results. The counter-intuitive temperature dependence was attributed to an increase in potential barrier for electrons due to the increased ionized acceptor concentration in the EBL with temperature. The results were also consistent with the thermionic emission model and could provide insight into the thermal droop of GaN-based LEDs.
Article
Engineering, Multidisciplinary
Ter-Chan Row, Wei-Ming Syu, Yen-Liang Pan, Ching-Cheng Wang
MATHEMATICAL PROBLEMS IN ENGINEERING
(2019)
Article
Engineering, Chemical
Yi-Hung Liu, Wei-Jin Huang, Chih-Ta Wang
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2019)
Article
Chemistry, Multidisciplinary
Yen-Liang Pan
APPLIED SCIENCES-BASEL
(2020)
Article
Chemistry, Multidisciplinary
Yen-Liang Pan, Chun-Wang Tai, Ching-Yun Tseng, Jong-Ching Huang
APPLIED SCIENCES-BASEL
(2020)
Article
Engineering, Electrical & Electronic
Cheng-Liang Hsu, Jia-Xin Gan, Han-Ting Hsueh, Yi-Hung Liu
Summary: In this study, p-type amorphous structure Co3O4 nanoflowers were synthesized on n-type single crystal ZnO nanowires/glass substrate using chemical bath deposition. The humidity sensing of the p-n nanocomposite exhibited p-type characteristics at lower than 50% RH, and n-type properties at higher than 50% RH. The p-n nanocomposite sensor showed good sensing ability for various organic solvent gases, with ethanol being the most sensitive.
IEEE ELECTRON DEVICE LETTERS
(2021)
Article
Nanoscience & Nanotechnology
Jian-Fu Tang, Yi-Da Sie, Zong-Liang Tseng, Ja-Hon Lin, Lung-Chien Chen, Cheng-Liang Hsu
Summary: In this study, a photodetector and humidity sensor based on zinc oxide nanowires (ZnO NWs) with CsPbBr3 perovskite quantum dots (PQDs) were developed. The excellent optoelectronic properties of PQDs make them ideal for semiconductor sensors. The experimental results showed that the performance of PQD/ZnO NWs was superior to that of ZnO NWs, especially in terms of humidity response and photocurrent.
ACS APPLIED NANO MATERIALS
(2022)
Article
Chemistry, Physical
Yi-Hung Liu, Hong-Wen Guo, Fen-Yan Zeng
Summary: To produce green hydrogen, the development of high-performance, environmentally friendly, and cost-effective electrocatalysts for efficient hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) is essential. This study explores the potential application of water-containing deep eutectic solvents (DESs) in the synthesis of nanostructured electrocatalysts for water electrolysis. The CU10W electrode, prepared by electrodeposition in a water-containing choline chloride/urea DES, exhibits excellent bifunctional activity toward HER and OER, with reduced overpotentials and improved stability.
JOURNAL OF POWER SOURCES
(2023)
Article
Engineering, Chemical
Ter-Chan Row, Shih-Chih Lee, Yen-Liang Pan
Summary: In the domain of deadlock prevention in flexible manufacturing systems, researchers aim to find maximally permissive controllers, but it is a challenging task.
Article
Computer Science, Information Systems
Ter-Chan Row, Yen-Liang Pan
Summary: This paper focuses on studying deadlocks, which are an obstacle in the flexible manufacturing system (FMS) of Petri nets (PNs) since their occurrence can cause the entire model to stop working. The Petri net, due to its structural characteristic, is used as a model tool to overcome deadlocks. The place invariant (PI) associated with the control algorithm has been popular for achieving maximum permissiveness by forbidding deadlocks, but the results are complex. This paper proposes a single controller and single token to eliminate all deadlocks in the FMS of PNs, using a combination of PI and simplified dead markings.
Article
Chemistry, Multidisciplinary
Yi-Hung Liu, Yen-Lin Chen, Yu-Sin Chen, Shih-Ming Huang, Hsu-Min Huang, Shih-Jen Lin, Ching-Yi Yang
Summary: In this study, a environmentally friendly ball milling process was used to transform the recycled silicon material from waste solar cells into lithium ion battery anode material. The ball-milled silicon was then combined with a carbon fiber paper substrate to fabricate a composite electrode. The optimized milling conditions produced an active material with moderate particle size and oxidation states, leading to improved cycling and rate performances for the recycled silicon. Introducing a hydrothermally treated substrate further enhanced the electrochemical performance of the composite electrode.
Article
Computer Science, Information Systems
Ter-Chan Row, Yen-Liang Pan
Summary: This paper introduces a novel recovery policy based on control transitions to maintain the system's maximal permissiveness without solving integer linear programming problems. Experimental data shows that this policy can prevent deadlocks and preserve all initial markings.
Article
Nanoscience & Nanotechnology
Cheng-Liang Hsu, Yu-Che Wang, Sheng-Po Chang, Shoou-Jinn Chang
ACS APPLIED NANO MATERIALS
(2019)
Article
Chemistry, Multidisciplinary
Yi-Hung Liu, Heng-Han Lin, Tsung-Yu Tsai, Chun-Han Hsu
Article
Materials Science, Multidisciplinary
Bohr-Ran Huang, Jinn P. Chu, Cheng-Liang Hsu, Joseph E. Greene, You-Syuan Chen, Chia-Hao Chang
JOURNAL OF MATERIALS CHEMISTRY C
(2019)
