A5017340916- Perovskite Materials and Applications
- Conducting polymers and applications
- Organic Electronics and Photovoltaics
- Quantum Dots Synthesis And Properties
- Chalcogenide Semiconductor Thin Films
- Solid-state spectroscopy and crystallography
- Advancements in Battery Materials
- Organic Light-Emitting Diodes Research
- Advanced Battery Technologies Research
- Advanced Battery Materials and Technologies
- Electronic and Structural Properties of Oxides
- Advanced Photocatalysis Techniques
- Covalent Organic Framework Applications
- Ammonia Synthesis and Nitrogen Reduction
- Nanowire Synthesis and Applications
- Multiferroics and related materials
Research Center for Applied Science, Academia Sinica
2017-2024
National Tsing Hua University
2017-2022
Academia Sinica
2017-2022
National Taiwan University of Science and Technology
2020
The presence of toxic lead (Pb) remains a major obstruction to the commercial application perovskite solar cells. Although antimony (Sb)-based perovskite-like structures A3M2X9 can display potentially useful photovoltaic behavior, solution-processed Sb-based usually favor dimer phase, which has poor properties. In this study, we prepared layered polymorph Cs3Sb2I9 through solution-processing and studied its exciton binding energy lifetime layer-form were approximately 100 meV 6 ns,...
In this paper we describe a modified (AEG/CH) coated separator for Li–S batteries in which the shuttling phenomenon of lithium polysulfides is restrained through two types interactions: activated expanded graphite (AEG) flakes interacted physically with polysulfides, while chitosan (CH), used to bind AEG on separator, chemically its abundance amino and hydroxyl functional groups. Moreover, facilitated ionic electronic transfer during redox reaction. Live H-cell discharging experiments...
Hybrid lead halide perovskites continue to attract interest for use in optoelectronic devices such as solar cells and light-emitting diodes. Although challenging, the replacement of toxic these systems is an active field research. Recently, trivalent metal cations (Bi3+ Sb3+) that form defect A3B2X9 has received great attention development cells, but their light-emissive properties have not previously been studied. Herein, all-inorganic antimony-based two-dimensional perovskite, Cs3Sb2I9,...
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.
In this study, we prepared organic photovoltaics (OPVs) featuring an active layer comprising double bulk heterojunction (BHJ) structures, binary blends of a polymer donor and concentration gradients two small-molecule acceptors. After forming the first BHJ structure by spin-coating, second was transfer-printed onto using polydimethylsiloxane stamps. A specially designed selenium heterocyclic acceptor (Y6-Se-4Cl) employed as in BHJ. X-ray photoelectron spectroscopy revealed that acceptors...
A separator comprising polypropylene (PP)coated with MoO<sub>3</sub> nanobelts, prepared through facile grinding of commercial powder, exhibit excellent electrochemical performance at high C-rate for Li–S battery.
In this paper, a universal approach toward constructing new bilayer device architecture, few-nanometer-thick third-component layer on bulk-heterojunction (BHJ) binary blend layer, has been demonstrated in two different state-of-the-art organic photovoltaic (OPV) systems. Through careful selection of third component, the power conversion efficiency (PCE) based PM6/Y6/layered PTQ10 layered structure was 16.8%, being higher than those corresponding devices incorporating PM6/Y6/PTQ10 BHJ ternary...
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...
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...
A well-crystalline two-dimensional (2D) perovskite material, Ca2Nan–3NbnO3n+1– (CNNO–) nanosheets, derived from the Dion–Jacobson phase has potential to generate hydrogen through photoelectrochemical water splitting. Here, we demonstrate that a high-κ photovoltaic electrode consisting of CNNO– nanosheets with layer number n = 4–6 and hole-transport polymer, poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate), can form p–n junction an overall solar-to-hydrogen water-splitting cell,...
The outstanding properties of perovskites have attracted huge attention in optoelectronic applications. However, the current study mainly focuses on small-area single-layer perovskite films. Surface modification polydimethylsiloxane (PDMS) surface has potential for successful transfer thin films and also forming perovskite/perovskite heterostructures. Nevertheless, PDMS processes suffer from fast hydrophobicity gain, thus greatly inhibiting their use printing In this study, grafting-assisted...
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...
Abstract The notorious growth of lithium (Li) dendrites and the instability solid electrolyte interface (SEI) during cycling make Li metal anodes unsuitable for use in commercial Li‐ion batteries. Herein, simple sugar coating (α‐ d ‐glucose) is demonstrated on top to halt stabilize SEI. α‐ ‐glucose layer possesses high surface adhesive energies toward Li, which promote homogenous stripping plating ions metal. Density functional theory reveals that diffusion within governed by hopping around...