A5073140514- 2D Materials and Applications
- Perovskite Materials and Applications
- Random lasers and scattering media
- Nanowire Synthesis and Applications
- Quantum Dots Synthesis And Properties
- Nanocluster Synthesis and Applications
- Advanced Sensor and Energy Harvesting Materials
- Graphene research and applications
- MXene and MAX Phase Materials
- Luminescence Properties of Advanced Materials
- Ga2O3 and related materials
- Luminescence and Fluorescent Materials
- Chalcogenide Semiconductor Thin Films
- Photonic Crystals and Applications
- Thermal properties of materials
- Advanced Optical Imaging Technologies
- Magnetism in coordination complexes
- Molecular Junctions and Nanostructures
- Conducting polymers and applications
- Advanced Fiber Laser Technologies
- Electronic and Structural Properties of Oxides
- Advanced Thermoelectric Materials and Devices
- Advanced Materials and Mechanics
- Semiconductor Lasers and Optical Devices
- Optical properties and cooling technologies in crystalline materials
National Taiwan University
2018-2023
National Tsing Hua University
2018-2021
Academia Sinica
2018-2021
Institute of Physics, Academia Sinica
2018-2020
Dual-functional devices that can simultaneously detect light and emit have a tremendous appeal for multiple applications, including displays, sensors, defense, high-speed optical communication. Despite the efforts of scientists, progress integration phototransistor, where built-in electric field separates photogenerated excitons, light-emitting diode, radiative recombination be enhanced by band offset, into single device remains challenge. Combining superior properties perovskite quantum...
Abstract Metal‐organic frameworks (MOFs) have recently emerged as attractive materials for their tunable properties, which been utilized diverse applications including sensors, gas storage, and drug delivery. However, the high porosity poor electrical conductivity of MOFs restrict optoelectronic applications. Owing to inherent tunability, a broadband photon absorbing MOF can be designed. Combining superior properties along with ultrahigh carrier mobility graphene, first time, this study...
Numerous investigations of photon upconversion in lanthanide-doped nanoparticles (UCNPs) have led to its application the fields bioimaging, biodetection, cancer therapy, displays, and energy conversion. Herein, we demonstrate a new approach toward UCNPs graphene hybrid planar rippled structure photodetector. The multi-energy sublevels from 4fn electronic configuration lanthanides results longer excited state lifetime for photogenerated charge carriers. This opens up regime...
Multistate logic is recognized as a promising approach to increase the device density of microelectronics, but current approaches are offset by limited performance and large circuit complexity. We here demonstrate route toward increased integration that enabled mechanically tunable concept. Bi-anti-ambipolar transistors (bi-AATs) exhibit two distinct peaks in their transconductance can be realized single 2D-material heterojunction-based solid-state device. Dynamic deformation reveals...
The assorted utilization of infrared detectors induces the demand for more comprehensive and high-performance electronic devices that work at room temperature. intricacy fabrication process with bulk material limits exploration in this field. However, two-dimensional (2D) materials a narrow band gap opening aid (IR) detection relatively, but photodetection range is narrowed due to inherent gap. In study, we report an unprecedented attempt coordinated use both 2D heterostructure (InSe/WSe2)...
Multifunctional lanthanide-doped upconversion nanoparticles (UCNPs) have spread their wings in the fields of flexible optoelectronics and biomedical applications. One ongoing challenges lies achieving UCNP-based nanocomposites, which enable a continuous-wave (CW) laser action at ultralow thresholds. Here, gold sandwich UCNP nanocomposites [gold (Au1)–UCNP–gold (Au2)] capable exhibiting lasing thresholds under CW excitation are demonstrated. The metastable energy-level characteristics...
Indium selenide (InSe) is an emerging van der Waals material, which exhibits the potential to serve in excellent electronic and optoelectronic devices. One of advantages layered materials their application flexible How strain alters optical properties is, thus, important issue. In this work, we experimentally measured dependence on angle-resolved second harmonic generation (SHG) pattern a few layers InSe. We used exfoliation method fabricate InSe flakes SHG images with different azimuthal...
Self-healing technology promises a generation of innovation in cross-cutting subjects ranging from electronic skins, to wearable electronics, point-of-care biomedical sensing modules. Recently, scientists have successfully pulled off significant advances self-healing components including sensors, energy devices, transistors, and even integrated circuits. Lasers, one the most important light sources, with autonomous self-healability should be endowed more functionalities opportunities;...
Tuning the optical and electrical properties by stacking different layers of two-dimensional (2D) materials enables us to create unusual physical phenomena. Here, we demonstrate an alternative approach enhance charge separation alter in van der Waals heterojunctions with type-II band alignment using thin dielectric spacers. To illustrate our working principle, implement a hexagonal boron nitride (h-BN) sieve layer between InSe/GeS heterojunction. The transitions at junctions studied...
Abstract Printing technology has led to a multitude of revolutions in design, conception, fabrication, and application optoelectronics nowadays especially for wearables one‐off devices. Recent advances range from solar cells, batteries, sensors, LEDs, displays, biomedical widgets smart tags. Inkjet‐printed random lasers (IPRLs), demonstrated here, fill the crucial but missing piece puzzle printed as well progress laser research. A broad emission spectrum IPRL inks covering more than 75%...
Two-dimensional ternary materials are attracting widespread interest because of the additional degree freedom available to tailor material property for a specific application. An In1–xSnxSe phototransistor possessing tunable ultrahigh mobility by Sn-doping engineering is demonstrated in this study. A striking feature flakes reduction oxide phase compared undoped InSe, which validated spectroscopic analyses. Moreover, first-principles density functional calculations performed crystal system...
Atomically precise molecular-like metal nanoclusters (MNCs) exhibit unique properties, such as strong photoluminescence and absorption with inherent biocompatibility, which enable us to extend their applications chemical sensing, biomedical imaging, optoelectronics, many other areas. However, stimulated laser emission is greatly desirable upgrade more advanced functionalities. Here we provide a plausible approach achieve this outstanding characteristic from MNCs. Quite interestingly, by...
Strain tunable flexible InSnSe phototransistor holds promise for the future piezophototronics.
Two-dimensional (2D) material nanocomposites have emerged as a system for discovering new physical phenomena and developing novel devices. However, because of the low density states most two-dimensional materials such graphene, heterostructure suffers from an enhanced depletion region, which can greatly reduce efficiency charge carrier transfer deteriorate device performance. To circumvent this difficulty, here we propose alternative approach by inserting second 2D mediator with heavy...
The molecule-like metal nanoclusters gained wide attention from biomedical to energy applications in recent years owing their discrete spectra. These atomically precise exhibit a significant band opening and consequently the possibility for strong light emission. Based upon previous reports on conventional semiconductors, semiconducting nature of these combined with two-dimensional semimetals can have huge impact optoelectronic devices. present work demonstrates that hybrid structure...
Stretchable optoelectronic devices are the need of hour when it comes to making present day technologies user-friendly. These placed conformably on human skin or any other artificial intelligence products must function in all their capacities get a durable and highly sensitive device performance. photodetectors core fundamental constituents that fall under umbrella flexible devices. Although significant amount research has been reported stretchable photodetectors, good performance still...
Ultrathin<italic>T</italic><sub>d</sub>-Mo<sub>0.27</sub>W<sub>0.71</sub>Te<sub>2.02</sub>films synthesized using a chemical vapor deposition method exhibit non-saturating magnetoresistance of 11% at room temperature.
Abstract Rollable photonic devices that can adapt to freeform surfaces with reduced dimensions while maintaining their original functionalities are highly desirable. Among devices, metamaterials hyperbolic dispersion in momentum space, defined as metamaterial (HMM), possess a large density of states has been proven boost light-matter interaction. However, these mainly developed on rigid substrates, restricting functionalities. Here, we present the attempt integrate flexible and rollable HMMs...
Abstract Near‐infrared light‐emitting technology is ideal for noncontact diagnostic medical imaging and high‐speed data communications. High‐quality ReSe 2 nanosheets of anisotropic single‐crystal structure with a bandgap 1.26 eV (≈984 nm) are synthesized an atmospheric pressure chemical vapor deposition (APCVD) method. The as‐synthesized nanosheets‐fabricated transistors (LETs) exhibit nearly symmetric ambipolar characteristics in electrical transport. Judicious selection asymmetric...
Abstract Novel anti‐ambipolar transistors (AATs) are gate tunable rectifiers with a marked potential for multi‐valued logic circuits. In this work, the optoelectronic applications of AATs in cryogenic conditions studied, which AAT devices consist vertically stacked p‐ SnS and n‐ MoSe 2 nanoflakes to form type‐II staggered band alignment. An electrostatically p‐SnS/n‐MoSe cryo‐phototransistor is presented unique characteristics cryogenic‐enhanced performance. The exhibits sharp highly...
Sn doped InSe crystal has a reduced oxide phase and enhanced electron mobility. Along with the substrate modification, mobility enhances to 2560±240 cm 2 V -1 s . Moreover, it exhibits piezo-phototronic effect useful for practical implementation