A5036975016- Perovskite Materials and Applications
- Conducting polymers and applications
- Quantum Dots Synthesis And Properties
- Chalcogenide Semiconductor Thin Films
- Organic Electronics and Photovoltaics
- Advanced Battery Materials and Technologies
- Advancements in Battery Materials
- Organic Light-Emitting Diodes Research
- Solid-state spectroscopy and crystallography
- Supercapacitor Materials and Fabrication
- Random lasers and scattering media
- Semiconductor Lasers and Optical Devices
- Advanced Photocatalysis Techniques
- Neural Networks and Reservoir Computing
- Advanced battery technologies research
- Solid State Laser Technologies
- Nanowire Synthesis and Applications
Research Center for Applied Science, Academia Sinica
2017-2024
Chang Gung University
2017-2023
Academia Sinica
2018-2022
Indian Institute of Technology Delhi
2014
Lead-free antimony based metal halide perovskites were used as photoactive materials in solar cell devices and exhibited maximum power conversion efficiency of 2.04%.
We fabricated the defect passivation of perovskite solar cells using CdSe/ZnS quantum dots. The efficient reduces trap charge density and elongates carrier life time.
Metal halide perovskites having three-dimensional crystal structures are being applied successfully in various optoelectronic applications. To address their most challenging issues-instability and toxicity-without losing efficiency, lower-dimensional appear to be promising alternatives. Recently, two-dimensional (2D) perovskite solar cells have been developed exhibiting excellent photostability moisture-stability, together with moderate device efficiency. This review summarizes the...
Inorganic-organic hybrid perovskite solar cells (PSCs) are promising devices for providing future clean energy because of their low cost, ease fabrication, and high efficiencies, similar to those silicon cells. These materials have been investigated potential use in bifacial PSCs, which can absorb light from both sides the electrodes. Here, we fabricated PSCs featuring transparent BCP/Ag/MoO3 rear electrodes, formed through low-temperature processing using thermal evaporation methods. We...
A direct deposition methodology has been optimized for highly crystalline inorganic-organic (IO) perovskite thin films. The simplest ensures long-range order with high c-oriented films, thicknesses ranging from ultra-thin (~20nm) and upto 1.5 µm. These self-assembled layered perovskites are naturally aligned alternative stacking arrangement of inorganic organic monolayers, resemble multiple quantum wells (MQWs), which offers superior optoelectronic properties such as room-temperature optical...
Fully inorganic perovskites based on Bi3+ and Sb3+ are emerging as alternatives that overcome the toxicity low stability of their Pb-based perovskite counterparts. Nevertheless, thin film fabrication Pb-free remains a struggle, with poor morphologies incomplete conversions greatly inhibiting device performance. In this study, we modulated crystallization an all-inorganic dimer phase Sb (d-Cs3Sb2I9) through gradual increase in annealing temperature, accompanied by use Lewis bases for adduct...
A novel ball milling method was used to prepare TiO<sub>2</sub> ETMs at RT ∼ 30 °C for large and small area perovskite solar cells.
Further technological development of perovskite solar cells (PSCs) will require improvements in power conversion efficiency and stability, while maintaining low material costs simple fabrication. In this Research Article, we describe top-illuminated ITO-free, stable PSCs featuring microcavity structures, wherein metal layers on both sides the active exerted light interference effects layer, potentially increasing path length inside layer. The optical constants (refractive index extinction...
The recently emerged metal-halide hybrid perovskite (MHP) possesses superb optoelectronic features, which have obtained great attention in solid-state lighting, photodetection, and photovoltaic applications. Because of its excellent external quantum efficiency, MHP has promising potential for the manifestation ultralow threshold optically pumped laser. However, demonstration an electrically driven laser remains a challenge because vulnerable degradation perovskite, limited exciton binding...
In this study, a solution-processable lead iodide semiconductor having wide band gap was investigated as light absorbing material for various organic electron transport materials, in search low-cost materials allowing the facile fabrication of efficient photovoltaic devices. A Tauc plot suggested intrinsic optical 2.4 eV thin film PbI2, while X-ray diffraction revealed that spin-coated PbI2 had hexagonal crystalline structure with preferable orientation along (001) plane. The effect...
The performance of single-junction mixed-halide perovskite-based solar cells is limited by thermalization and spectral losses. With advanced device architectures, the perovskite/perovskite heterostructure, where two or more photoactive layers are stacked together, can help to minimize these In this work, we conformally transfer printed a narrow-band-gap perovskite over spin-coated wide-band-gap layer form heterostructure. This heterostructure results in broader coverage higher position...
With the assist of van der Waals epitaxy on 2D material surfaces, conductive thin gold films down to several nanometers in thicknesses can be prepared transferred monolayer MoS2 surfaces. Compared with open circuit observed for 6 nm Au film deposited blank glass substrate, a low sheet resistance 20.35 Ω/sq is surface. By using MoS2-mediated different 6, 8, and 10 nm, compatible device performances reference thick 100 silver electrodes are 8 Au/monolayer electrodes. A high bifaciality factor...
A polymer-based hole-transporting layer (HTL) with a tunable work function and highest occupied molecular orbital (HOMO) position was demonstrated to effectively optimize the anode junctions of optoelectronic devices.
Abstract Owing to their excellent carrier mobility, high absorption coefficient, exceptional quantum efficiency, and low‐cost solution processability, perovskite dots (PQDs) are a promising candidate for photodetection. However, PQDs‐based photodetectors typically show poor optoelectronic performances, mainly limited by weak light–matter interaction. In this work, MAPbBr 3 PQDs hybridized with graphene (Gr) morphologically controlled plasmonic gold nanocrystals (AuNCs) demonstrate superior...
A solid-state electrolyte should display high ionic conductivity, low interfacial impedance, good mechanical properties, and stability. Although poly(ethylene oxide) (PEO) has been investigated extensively as a potential polymer host in solid electrolytes (SPEs), it suffers from flammability, Li dendrite growth, poor strength. In this study we developed composite SPE featuring oxygen-deficient MoO3 –x nanobelts (MNBs) passive nanofillers to address these issues. Relative the PEO-only SPE,...
Decreasing the number of interfacial defect states and enhancing charge transfer ability transport layers have become promising strategies for increasing efficiency stability perovskite solar cells (PSCs). In this study, we used a holistic interface strategy, employing three-dimensional (3D) triphenylamine-based nanographene (NG) precursors with well-defined molecular structures presenting various functional units (F, Br, OMe), to achieve efficient inverted PSCs. The 3D NG precursor formed...