A5021810621- ZnO doping and properties
- Perovskite Materials and Applications
- Conducting polymers and applications
- Ga2O3 and related materials
- Gas Sensing Nanomaterials and Sensors
- Organic Electronics and Photovoltaics
- Quantum Dots Synthesis And Properties
- Semiconductor materials and devices
- Thin-Film Transistor Technologies
- Electronic and Structural Properties of Oxides
- Organic Light-Emitting Diodes Research
- Chalcogenide Semiconductor Thin Films
- Nanowire Synthesis and Applications
- Molecular Junctions and Nanostructures
- Solid-state spectroscopy and crystallography
- TiO2 Photocatalysis and Solar Cells
- GaN-based semiconductor devices and materials
- Advanced Photocatalysis Techniques
- Silicon and Solar Cell Technologies
- Metamaterials and Metasurfaces Applications
- Inorganic and Organometallic Chemistry
- Water Quality Monitoring and Analysis
- Terahertz technology and applications
- Thermal Radiation and Cooling Technologies
- Strong Light-Matter Interactions
Jimei University
2020-2024
National Cheng Kung University
2016-2019
National University of Kaohsiung
2013-2014
The properties of perovskite solar cells (PSCs) fabricated using various solvents was studied. devices had an indium tin oxide (ITO)/poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT:PSS)/CH3NH3PbI3 (fabricated by solvents)/fullerene (C60)/bathocuproine (BCP)/silver (Ag) structure. used were dimethylformamide (DMF), γ-butyrolactone (GBL), dimethyl sulfoxide (DMSO), a mixture DMSO and DMF (1:1 v/v), GBL (DMSO: GBL, 1:1 respectively. power conversion efficiency (PCE) the device...
In this study, aluminum-doped zinc oxide (Al:ZnO) thin films were grown by high-speed atmospheric atomic layer deposition (AALD), and the effects of air annealing on film properties are investigated. The experimental results show that thermal can significantly reduce amount oxygen vacancies defects as evidenced X-ray photoelectron spectroscopy spectra due to in-diffusion from films. As shown diffraction, repairs crystalline structure releases stress. absorption coefficient increases with...
Tantalum (Ta)-doped titanium oxide (TiO2) thin films are grown by plasma enhanced atomic layer deposition (PEALD), and used as both an electron transport hole blocking compact of perovskite solar cells. The metal precursors tantalum ethoxide isopropoxide simultaneously injected into the chamber. Ta content is controlled temperature precursors. experimental results show that incorporation introduces oxygen vacancies defects, accompanied reduced crystallinity optical band gap. PEALD Ta-doped a...
THz-time domain spectroscopy is an effective method of label-free molecular detection, but it limited by the size measured samples. Traditional detection approaches will have to overcome challenges when analyte are in trace amounts. Here, we propose enhanced mechanism for terahertz fingerprint sensing, involving all-dielectric metasurface. Based on incident wave angle scanning under light polarization, broadband light–matter interaction effectively enhanced, significantly improving signal...
Zinc oxide (ZnO) attracts much attention owing to its remarkable electrical and optical properties for applications in optoelectronics. In this study, ZnO thin films were prepared by spatial atomic layer deposition with diethylzinc water as precursors. The substrate temperature was varied from 55 135 °C investigate the effects on optical, electrical, structural of films. All samples exhibit an average transmittance visible near-infrared light range exceeding 80% a resistivity (3.2-9.0) ×...
In this study, nanostructured pyramidal black silicon is prepared by metal assisted chemical etching method, in which the silver nitrate (AgNO3) used as catalyst. Effects of concentration AgNO3 on passivation and optical properties are investigated. The experimental results show that at 0.03 M, nanostructure length about 300 nm, reflectance with a stack nitride (SiNx) aluminum oxide (Al2O3) 0.8%, comparable to conventional micrometer-long nanowires. addition, an acceptably low surface...
Plasma enhanced atomic layer deposited indium tin oxide films using InCp, TDMASn and O 2 plasma as metal oxygen precursors exhibit a single-crystalline-like structure, high carrier mobility low resistivity.
In this study, spatial atomic layer deposition (sALD) is employed to prepare titanium dioxide (TiO2) thin films by using tetraisopropoxide and water as metal precursors, respectively. The post-annealing temperature varied investigate its effect on the properties of TiO2 films. experimental results show that sALD has a similar rate per cycle other ALD processes oxygen plasma or ozone oxidant, implying growth limited steric hindrance. structure as-deposited amorphous changes polycrystalline...
The theoretical mechanism of open-circuit voltages (VOC) in OSCs based on various small molecule organic materials is studied. structure under investigation simple planar heterojunction (PHJ) by thermal vacuum evaporation deposition. wide band gaps are used to enhance the power conversion efficiency (PCE). donor device include: Alpha-sexithiophene (α-6T), Copper(II) phthalocyanine (CuPc), boron subnaphthalocyanine chloride (SubNc) and Subphthalocyanine (SubPc). It combined with fullerene or...
In this study, the effect of radical intensity on deposition mechanism, optical, and electrical properties tin oxide (SnO2) thin films is investigated. The SnO2 are prepared by plasma-enhanced atomic layer with different plasma power from 1000 to 3000 W. experimental results show that contains amount argon radicals (Ar*) oxygen (O*) increased power. three mechanisms indicated variation Ar* O* intensities evidenced optical emission spectroscopy. adequate obtained 1500 W, inducing highest...
In this study, we describe composited perovskite films based on the doping of lead cesium triiodide (CsPbI3) quantum dots (QDs) into methylammonium iodide (MAPbI3). CsPbI3 QDs and MAPbI3 were prepared by ligand-assisted re-precipitation solution mixing, respectively. These optimized oxygen plasma treatment, effect powers from 0 to 80 W structural properties is discussed. The experimental results showed that light-harvesting ability was enhanced at 20 W. formation metastable state (lead(II)...
An optimized hybrid planar heterojunction (PHJ) of small molecule organic solar cells (SM‐OSCs) based on copper phthalocyanine (CuPc) as donor and fullerene (C 60 ) acceptor was fabricated, which obviously enhanced the performance device by sequentially using both MoO 3 pentacene double anode buffer layers (ABL), also known hole extraction layer (HEL). A series vacuum‐deposited ABL, acting an electron exciton blocking layer, were examined for their characteristics in SM‐OSCs. The reliability...
Perovskite quantum dots (QDs) have showed excellent optoelectronic properties to extend the application range of novel solid-state lighting, such as perovskite QD based LEDs (QD-LEDs). However, traditional device structure QD-LEDs employed PEDOT:PSS a hole inject layer (HIL), which impairs stability due acidic surface characteristics. This study proposes sputtered NiO films an HIL replace PEDOT:PSS. The with significantly different characteristics were prepared by controlling sputtering...
The small molecule organic solar cells based on boron subphthalocyanine chloride (SubPc) and C<sub >60</sub> by varying the SubPc layer thickness from 3 nm to 21 nm were fabricated. maximum power conversion efficiency (PCE) of 1.47% was obtained at 9 nm under 100 mW/cm<sup >2</sup> AM1.5G illumination, which is attributed reach optimal balance between light absorption carrier collection in device. To increase open-circuit voltage (<svg...
The effect of conventional Perovskite solar cells (PSCs) by using different concentration and spin-coating speeds titanium dioxide (TiO2) as an electron transport layer (ETL) was studied. influence TiO2 based on device structure: fluorine-doped tin oxide substrate/TiO2/Perovskite (CH3NH3PbI3)/2,2′,7,7′-Tetrakis[N,N-di(4-methoxyp phenyl)amino]-9,9′-spirobifluorene/silver, is also speed varied in a range from 1000 to 3000 rpm get optimal performance device. optimized power conversion...
In this study, titanium dioxide (TiO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> ) films are prepared using spatial atomic layer deposition (sALD) as an additional compact of tin oxide (SnO electronic transport layer-based perovskite solar cells. The experimental results show that the sALD TiO on fluorine-doped substrate improves haze at mid-long wavelengths, compensating optical loss caused by absorption in short-wavelengths....
The promising functional tin oxide (SnOx) has attracted tremendous attention due to its transparent and conductive properties. stoichiometric composition of SnOx can be described as common n-type SnO2 p-type Sn3O4. In this study, the films were prepared successfully by plasma-enhanced atomic layer deposition (PEALD) at different substrate temperatures from 100 400 °C. experimental results involving optical, structural, chemical, electrical properties morphologies are discussed....
In this paper, we demonstrate that the inverted CH3NH3PbI3 (perovskite) solar cells (PSCs) based on fullerene (C60) as an acceptor is fabricated by applying improved poly(3,4-ethlyenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) solution a hole transport layer (HTL). The power conversion efficiency (PCE) of PSCs increased 37.5% with stable values open-circuit voltage (VOC) and fill factor (FF) because enhance viscosity PEDOT:PSS solution, indicating perfect effect both external quantum...