A5021879218- Random lasers and scattering media
- Luminescence Properties of Advanced Materials
- 2D Materials and Applications
- Perovskite Materials and Applications
- Graphene research and applications
- Nanowire Synthesis and Applications
- Luminescence and Fluorescent Materials
- Quantum Dots Synthesis And Properties
- Advanced Sensor and Energy Harvesting Materials
- Interactive and Immersive Displays
- Nonlinear Optical Materials Studies
- Ga2O3 and related materials
- Nanocluster Synthesis and Applications
- Ethnobotanical and Medicinal Plants Studies
- Orbital Angular Momentum in Optics
- Covalent Organic Framework Applications
- Cardiac Structural Anomalies and Repair
- Solid State Laser Technologies
- Plasmonic and Surface Plasmon Research
- Metamaterials and Metasurfaces Applications
- Strong Light-Matter Interactions
- Nanomaterials and Printing Technologies
- Laser-Matter Interactions and Applications
- Cardiovascular Issues in Pregnancy
- Advanced Materials and Mechanics
Caelum Research Corporation (United States)
2024
Applied Physical Sciences (United States)
2023
University of North Carolina at Chapel Hill
2023
Institute of Atomic and Molecular Sciences, Academia Sinica
2018-2021
National Taiwan University
2018-2021
National Central University
2018-2020
Institute of Molecular Biology, Academia Sinica
2018-2020
Visible blind near-infrared (NIR) photodetection is essential when it comes to weapons used by military personnel, narrow band detectors in space navigation systems, medicine, and research studies. The technological field of filterless visible blind, NIR omnidirectional wearability at a preliminary stage. Here, we present lightweight design for wearable photodetector capable harvesting light omnidirectionally. comprises the integration distinct features lanthanide-doped upconversion...
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...
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...
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...
Lanthanide-doped upconversion nanoparticles (UCNPs) are attractive luminescent materials for nanophotonic applications under near-infrared excitation, but their full potential is still limited by the low quantum yield of emission. Herein, we have designed and demonstrated a strategy to enhance emission UCNPs film laser-induced microbubble. The microbubble plays multifunctional roles, including collecting plasmonic Ag NPs from solution Marangoni convention, printing them on localized surface...
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%...
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...
Plasmonic material has emerged with multifunctionalities for its remarkable tailoring light emission, reshaping density of states (DOS), and focusing subwavelength light. However, restricted by propagation loss narrowband resonance in nature, it is a challenge plasmonic to provide broadband DOS advance application. Here, we develop novel nanoscale core-shell hyperbolic structure that possesses coupling effect inside the multishell composite owing higher longer time collective oscillations...
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...
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 By using localization techniques, we demonstrated that the morphology of a 2D material in three dimensions can be optically obtained with nanometer precision z -axis. This technique provides convenient method to study correlation between optical properties and materials for same area. We utilized microscopy directly ultrafast photoluminescence graphene. observed enhancement from deformed In comparison planar graphene, factor could up several times at highly curved region. found...
Hyperbolic metamaterials (HMMs) have attracted significant attention due to the profound manipulation of photonic density states, resulting in efficient optoelectronic devices with enhanced light-matter interaction. HMMs are conventionally built on rigid large-size substrates poor conformability and absence flexibility. Here, we demonstrate a grating collageable HMM (GCHMM), which is composed eight alternating layers Au poly(methyl methacrylate) (PMMA) PMMA nanostructure containing quantum...
Peripartum cardiomyopathy: A case report - IJOGR- Print ISSN No: 2394-2746 Online No:- 2394-2754 Article DOI 10.18231/j.ijogr.2019.089, Indian Journal of Obstetrics and Gynecology Research-Indian J Obstet Gynecol Res
We present a highly sensitive, filtlerless, visible blind, omnidirectional and wearable near infrared photodetector suitable for next generation of technologies. Here, the hybrid device constituents include lanthanides doped upconversion nanoparticles, graphene micro-pyramidical poly(dimethylsiloxane) film. This exhibits ultra-high responsivity ~ 800 AW−1 at VDS = 1 V under 0.07 µW 980 nm laser illumination. The novel design makes it user friendly, light weight, durable transparent.