A5059193680- Advanced Fiber Laser Technologies
- Photonic Crystal and Fiber Optics
- Solid State Laser Technologies
- Random lasers and scattering media
- Laser-Matter Interactions and Applications
- Perovskite Materials and Applications
- Liquid Crystal Research Advancements
- Nonlinear Optical Materials Studies
- ZnO doping and properties
- Photonic Crystals and Applications
- Advanced Fiber Optic Sensors
- Photonic and Optical Devices
- Conducting polymers and applications
- Advanced Optical Imaging Technologies
- Orbital Angular Momentum in Optics
- Advanced Photocatalysis Techniques
- Advanced Sensor and Energy Harvesting Materials
- Quantum Dots Synthesis And Properties
- Ga2O3 and related materials
- Nonlinear Optical Materials Research
- Luminescence and Fluorescent Materials
- Semiconductor Lasers and Optical Devices
- Optical Coherence Tomography Applications
- Chalcogenide Semiconductor Thin Films
- Photorefractive and Nonlinear Optics
National Taipei University of Technology
2016-2025
Taiwan Semiconductor Manufacturing Company (Taiwan)
2024
National Yang Ming Chiao Tung University
2001-2017
National Central University
2012
National Tsing Hua University
1996-2002
Southwestern University
1992
Abstract Triboelectric nanogenerators (TENGs) have become reliable green energy harvesters by converting biomechanical motions into electricity. However, the inevitable charge leakage and poor electric field (EF) of conventional TENG result in inferior tribo‐charge density on active layer. In this paper, TiO 2 ‐MXene incorporated polystyrene (PS) nanofiber membrane (PTMx NFM) trapping interlayer is introduced single electrode mode (S‐TENG) to prevent electron loss at interface. Surprisingly,...
Abstract Interfaces play a decisive role in perovskite solar cells’ power conversion efficiency and their long‐term durability. Small‐molecule hole‐transporting materials (HTMs) have grabbed enormous attention due to structural flexibility, material properties, stabilities, allowing for improved operational durability photovoltaics. This study synthesizes investigates new class of benzimidazole‐based small molecules, named YJS001 YJS003 , serving as the HTMs enable high‐efficiency...
Because of their exceptional physical and thermal properties, cellulose nanocrystals (CNCs) are a highly promising bio-based material for reinforcing fillers. Studies have revealed that some functional groups from CNCs can be used as capping ligand to coordinate with metal nanoparticles or semiconductor quantum dots during the fabrication novel complex materials. Therefore, through encapsulation electrospinning, perovskite-NC-embedded nanofibers optical stability demonstrated. The results...
Abstract Large dark current at room temperature has long been the major bottleneck that impedes development of high‐performance infrared photodetectors toward miniaturization and integration. Although based on layered 2D narrow bandgap semiconductors have shown admirable advantages compared with those conventional compounds, which typically suffer from expensive cryogenic operation, it is still urgent to develop a simple but effective strategy further reduce current. Herein, tellurium...
This review summarizes the advances in self-healing materials developed for electrodes and electrolytes of energy harvesting storage devices (TENG, supercapacitors batteries) with enhanced durability functionality.
Optical nonlinearities of ZnO thin films, made by laser deposition, were investigated the Z-scan method using a mode-locked femtosecond Ti:sapphire laser. The measured bound-electron nonlinear index refraction γ and two-photon absorption coefficient β at near-IR wavelengths show an enormous enhancement compared with measurements on bulk 532 nm. results reveal that resonance to band edge exciton energy level is responsible for free carrier induced optical nonlinearity. With excitation...
In use of saturable Cr(4+):YAG crystals, we have demonstrated the stable Q-switched and mode-locked (QML) operation Nd:LuVO(4) laser. The range QML in is larger than that SESAM NLM. obtained shape envelope, repetition rate pulse energy are to depend on initial transmittance reflectivity output coupler. Using R = 60% T(0) 40%, highest 77 microJ each peak power about 200 kW pulses can be at 15 W pump power. It demonstrate superior characteristic crystal.
Several biological membranes have been served as scattering materials of random lasers, but few them include natural photonic crystals. Here, we propose and demonstrate a facile approach to fabricating high-performance crystal which is cost-effective reproducible for mass production. As benchmark, optical lasing properties dye-coated Lepidoptera wings, including Papilio ulysses butterfly Chrysiridia rhipheus moth, are characterized show stable laser emission with superior threshold 0.016...
In this study, we developed a photodetector and humidity sensor based on zinc oxide nanowires (ZnO NWs) with CsPbBr3 perovskite quantum dots (PQDs). PQDs are ideally suited to semiconductor sensors due their excellent optoelectronic properties, including the high carrier mobility, absorption coefficient, effective charge transfer at heterojunctions. The ZnO NWs were created via chemical bath deposition, one-step injection method. I–V curves revealed that current leakage of PQD/ZnO was lower...
Random lasers (RLs) are convenient, tunable, and widely applicable. However, the influence of fluorescence lifetime on scattering nanofiber distribution nanofibers with various shapes silver nanoparticles (Ag NPs) embedded within is unclear. We prepared poly(vinyl alcohol) (PVA) Ag NPs through electrospinning (ES) pyrromethene 597 dye doping. determined influences particles enhancement localized surface plasmon resonance (LSPR) in RLs. The distinct rates LSPR can be used to control optical...
Abstract In this work, SiO 2 @α-Fe O 3 core-shell decorated RGO nanocomposites were prepared via a simple sol-gel method. The with different weight percentages (10, 30, and 50 wt %) of the on RGO, effects structural optical properties identified. photocatalytic reduction oxidation in gas phase assessed through CO ethanol using in-situ diffuse-reflectance infrared fourier transform spectroscopy (DRIFT). nanocomposite (30 showed superior activity for ethanol. Enhancement was also perceived...
The simultaneous realization of two-photon absorption (2PA) and thermally activated delayed fluorescence (TADF) in a single molecular system is challenging due to the inherent trade-off their design. In this study, we develop strategy enhance both properties by introducing electron-withdrawing substituents into CzTRZ scaffold. TRZCF3 TRZCN units effectively charge-transfer (CT) character CzTRZ, resulting high 2PA cross-sections (156 GM for CzTRZCF3 200 CzTRZCN) reduced singlet-triplet energy...
We propose an intensity and wavelength-division multiplexing (IWDM) fiber Bragg grating (FBG) sensor system using a tunable multiport ring laser. The different output powers of laser are used to address the information reflected from sensing FBGs, even if wavelengths FBGs connected at ports identical. describe operation principle experimentally demonstrate three-port sensor. For IWDM technique, our proposed can enhance capacity, signal-to-noise ratio, resolution.
We investigated the characteristics of noise-like pulses (NLPs) from a net normal dispersion Yb-doped fiber laser (YDFL) by using grating pairs (GPs) inside cavity as compensation element. Without insertion slit cavity, operation YDFL is at an NLP state with double-scale intensity autocorrelation trace once mode-locked are generated. Through delay line outside substantial temporal compression NLPs has been demonstrated. After inserting between GPs bandpass filter, can be switched and...
Abstract High repetition frequency (HRF) ultrashort pulse fiber laser has been widely used in cold processing. The technical solutions such as short cavity length have proposed to achieve HRF output recently. However, the application of material-based saturable absorbers this field astricted due low modulation depth, damage resistance threshold, and high saturation fluence. Here, we designed a one-dimensional asymmetric photonic crystal with defect layer (1D-APCDL) novel absorber, where is...
Abstract High‐entropy (HE) MXenes represent a novel class of 2D materials within the MXene family, which are drawing widespread attention because their diverse compositions and robust physicochemical properties. However, exploration HE‐MXenes in optoelectronic domains is relatively limited. This study unveils rapid photoresponse superior nonlinear optical (NLO) characteristics HE‐MXene TiVCrMoC 3 T x nanosheets (NSs) through comparison with ordinary Ti C 2 NSs. Transient absorption...
Nonlinear optical absorption of ZnO thin film grown by the laser molecular beam epitaxy was investigated Z-scan method using a frequency-doubled femtosecond Ti:sapphire laser. Due to near-exciton resonance, an enormous enhancement two photon (TPA) is about 3000 cm/GW at 390 nm which 6.5 times larger than previously reported two-photon exciton resonance in near-IR regime and 710 that bulk measured 532 nm. Besides, free-carrier resulting from linear TPA becomes essential when excitation...