Session Index

Nanophotonic Materials and Devices

Poster Session II
Saturday, Dec. 5, 2020  10:30-12:30
Presider: Prof. Sajal Biring
Room: 6AB Courtyard
Manuscript ID.  0140
Paper No.  2020-SAT-P0102-P001
Yu-Sheng Chen
Inverse Design of Non-Periodical Metasurfaces via High-Performance Automatic Optimization
Chia-Hsiang Lin;Yu-Sheng Chen;Jhao-Ting Lin;Pin Chieh Wu

In this work, we introduce Monte Carlo tree search algorithm for the inverse design of high performance metasurfaces. Comparing with metasurface using gradient phase profile, our approach can diminish the requirements of amplitude variation as well as phase shift coverage, and significantly enhance the angular resolution of beam deflection metasurface.

Manuscript ID.  0262
Paper No.  2020-SAT-P0102-P002
Ming-Jyun Ye
Infrared Absorption Modulation with Metasurfaces Integrated Phase Change Materials
Ming-Jyun Ye;Hsin-Hua Chen;Kuo-Ping Chen

In this research, a large modulated depth (68.3%) at the resonance wavelength (λ = 1647 nm) was demonstrated in simulation. By integrated phase change material into metadevices, a dynamic modulation of absorption was achieved.

Manuscript ID.  0411
Paper No.  2020-SAT-P0102-P003
Liang-Yu Jian
Amplified spontaneous emission from all-inorganic halide perovskite on a flexible substrate
Liang-Yu Jian;Yen-Ting Chen;Zong-Liang Tseng;Ja-Hon Lin

The amplified spontaneous emission from surface normal of CsPbBr3 quantum dots on a flexible PET substrate with the assistance of the silk firbroin has been demonstrated by the pump of Q-switched laser to reveal a low lasing threshold about 18 mJ/cm2.

Manuscript ID.  0421
Paper No.  2020-SAT-P0102-P004
Shun-An Jiang
Towards continuous-wave lasing emissions based on dyed-doped cholesteric liquid crystal templates
Shun-An Jiang;Yung-Chun Chen;Yan-Song Zhang;Jia-De Lin;Ting-Shan Mo;Chia-Rong Lee

This research aims to overcome the shortcomings of liquid crystal laser, including photobleaching of dyes and induced thermal disturbance, for moving towards the goal of continuous-wave laser output. The experiments are performed based on DDCLC and DDCLC template samples at various pump energies and repetition rates at a long-termed excitation.

Manuscript ID.  0448
Paper No.  2020-SAT-P0102-P005
Hsien-Yi Liao
Gallium oxide diode based on silicon thin film with white light emission and resistance switch characteristics
Bo-Yong Huang;Hsien-Yi Liao;Yue-Lin Huang;Lung-Han Peng

We reported a phenomenon of negative differential resistance (NDR) with a typical value of peak to valley current ratio 7 on ITO/NiO/Ga2O3/ITO Si thin film diode. The carrier transport mechanism ascribed to a combined effect of charge detrapping and neutralization processes as one sweeps the voltage polarity.

Manuscript ID.  0242
Paper No.  2020-SAT-P0102-P006
Yan-Song Zhang
Stretchable Three-Dimensional Photonic Crystal Blue Phase Elastomer
Yan-Song Zhang;Shun-An Jiang;Jia-De Lin;Chia-Rong Lee

Self-assembled, three-dimensional (3D) photonic crystal (PhC) is a promising material on scientific development. Blue phase (BP) liquid crystalline mesophase with unique nanoscale PhC features, possesses periodicity in 3D. Here, a stretching-tunable BP elastomer photonic bandgap (PBG) free-standing film is fabricated. Additionally, mirrorless laser applications with flexible tunability are also realized.

Manuscript ID.  0662
Paper No.  2020-SAT-P0102-P007
David Juiyang Feng
Mechanism Study of Etching Lift-off SOI-based Si-nanomembrane by using HF mixed into Supercritical CO2
David Juiyang Feng

This study has advanced investigated the mechanism and the evolution of etching lift-off monocrystalline silicon nanomembranes from SOI sample by low concentration HF (34mM) in supercritical CO2 in condition of temperature = 60 degree C and pressure = 3000psi.

Manuscript ID.  0396
Paper No.  2020-SAT-P0102-P008
Fang-Sung Hsiao
Demonstration of a high definition video streaming through sub-terahertz link based on a terahertz photomixer
Fang-Sung Hsiao;Po-Chuan Wang;Wei-Yun Lin;Jhih-Heng Yan;Kai-Ming Feng;Shang-Hua Yang

This work demonstrates a high definition video streaming through sub-terahertz link based on a terahertz photomixer. The bit rate of the high definition video streaming is 3 Gbps and the carrier frequency is 150 GHz.

Manuscript ID.  0783
Paper No.  2020-SAT-P0102-P009
Kogularasu Sakthivel
KOH-Treated NiOx NPs as an Active Electrocatalyst for n-GaN Photoanode Towards Enhanced Solar-driven Water Splitting
Kogularasu Sakthivel

The Photoelectrochemical devices that use n-GaN as a working electrode usually deal with recombination/photocorrosion. To overcome this, a thin-layer of NiOx was prepared(sol-gel) and deposited(spin-coating) on the surface of n-GaN(MOCVD). Additionally, KOH is used to convert Ni(OH)2 into NiOOH for activating the surface, which makes NiOx@n-GaN as an excellent photoanode

Manuscript ID.  0759
Paper No.  2020-SAT-P0102-P010
Chi-An Chen
Polarization-detecting InGaN-GaN MQW p-n junction photodiode
Chi-An Chen;Yung-Chong Chang

An InGaN-GaN Multiquantum Well(MQW) p-n junction photodiodes with polarization-detecting function were designed and fabricated. With the special structure of photodiode, elliptical nanorods array, polarized light can be detected efficiently without extra component stacked on the photodiode. Results in this study will help to develop a chip-level polarization photodiode detector.

Manuscript ID.  0493
Paper No.  2020-SAT-P0102-P011
Yan-Ru Jiang
Surface Plasma Resonance Imaging using Tunable Dual –Bands Excitation on Nanostructure-Based Chips
Yan-Ru Jiang

We present a novel spatial imaging method to take the surface plasma resonance (SPR) images on nanostructure-based chips. Comparing the transmission intensities between two tunable wavelength bands near the SPR wavelength, and variations of the surface refractive index can be easily measured.

Manuscript ID.  0654
Paper No.  2020-SAT-P0102-P012
Yi-Ru Yang
Electro-optical properties of ions-/dichroic dyes-doped nematic liquid crystals
Yi-Ru Yang;Ko-Ting Cheng

The study reports the electro-optical properties of ions-/dichroic dyes-doped nematic LCs (IDdNLC), and the model of the formation of the “chevron patterns” of IDdNLC applied with external fields. The observations under a polarized optical microscope with an analyzer or not, and the polarization-selective absorption-/scattering of IDdNLC are shown.

Manuscript ID.  0708
Paper No.  2020-SAT-P0102-P013
Ming-Hsuan Tsai
Optical properties of InAs sub-monolayer quantum dots with pentanary InAlGaAsSb capping layer
Ming-Hsuan Tsai;Wei-Sheng Liu;Ming-En Hsu;Yung-Chen Li;Chung-Kai Chi;Po-Hao Chang;Kai-Yang Hsu

In this study, InAs sub-monolayer quantum dots were grown and capped with InAlGaAsSb. Photoluminescence measurement was used to study the optical properties of the InAlGaAsSb capping layer. Elongated photoluminescence emission wavelength with broadened spectral linewidth were observed for quantum dots capped with InAlGaAsSb compared with the typical GaAs capping layer

Manuscript ID.  0059
Paper No.  2020-SAT-P0102-P014
Yuan-Chih Tsai
Effect of Ring Homogeneity on Photonic Band Gap for Amorphous Tripod Networks
Po-Lin Lai;Chih-Ying Yang;Yuan-Chih Tsai;Yu-Chueh Hung

Amorphous photonic structures attract attention owning to its unique noniridescent optical properties. In this study, we presented three representative structures of amorphous tripod networks generated by two different methods to examine formation of photonic band gap. Our results revealed homogeneity of spacing distribution is critical for gap formation.

Manuscript ID.  0147
Paper No.  2020-SAT-P0102-P015
Shun-Ming Liao
Preparation and Luminescence Properties of Red Zn2SiO4:Eu3+ Nanophosphor
Hao-Yu Zhang;Shun-Ming Liao;Yi-Yan Tsai;Su-Hua Yang

This paper presents the luminescence properties of Zn2SiO4:Eu3+ nanophosphors
prepared with the sol-gel method. Under excitation at wavelength 394 nm, the Zn2SiO4:Eu3+ showed red emission with a peak at 616 nm. The influence of Eu3+ concentration and sintering temperature and time on the luminescence characteristics of the phosphor was investigated.

Manuscript ID.  0154
Paper No.  2020-SAT-P0102-P016
Chi-Hsien Cheng
Stimulus Pulse-dependent Responses of DNA Biopolymer Devices
Lin-Di Huang;Chi-Hsien Cheng;Yu-Chueh Hung

In this study, we present the stimulus pulse-dependent responses of DNA biopolymer devices, where the conductivity of the device is controlled by consecutive electrical pulses of different parameters. Device behaviors can mimic the synaptic plasticity in the human brain, paving the way towards biomaterial-based artificial synapses in neuromorphic systems.

Manuscript ID.  0163
Paper No.  2020-SAT-P0102-P017
Hsin Her Yu
An Anti-Opal Hydrogel Sensor for Food Additives Detecting
Hsin Her Yu;Jau-Jhong Yu;Wan-Ling Chen

An anti-opal hydrogel sensor capable of identifying L-Tryptophan (L-Trp) is prepares by combining photonic crystals with molecular imprinting techniques. This sensor has a great exclusive-identification for L-Trp, and its concentration can be predicted from the displacement of its reflective peak and the change of the color coordinate positions.

Manuscript ID.  0436
Paper No.  2020-SAT-P0102-P018
Ya-Fen Wu
Study On Photoluminescence Of All-inorganic Perovskite Quantum Dots
Jing-Wun Syu;Che-Ting Kuo;Yi-Hui Chen;Ya-Fen Wu

In this work, CsPb(Br1-xIx)3 quantum dots with different compositions were prepared and the temperature-dependent photoluminescence (PL) measurements were carried out. To investigate the thermal behaviors of peak energy, linewidth, and emission intensity of the PL spectra, the electron-phonon interaction and thermal expansion effect on the band-gap are discussed.

Manuscript ID.  0516
Paper No.  2020-SAT-P0102-P019
Yu-Chung Chang
Optical contrast dependence of few-layer MoS2 on the thickness of the oxide layer on silicon
Yu-Chung Chang;Yen-Ting Chen

We developed a method to quickly identify the location and determine the thickness of two-dimensional materials on silicon substrates by selecting the thickness of the oxide layer in between. It is important to find optimum oxide layer parameters for functional devices. The thickness dependence of spectroscopic properties was studied.

Manuscript ID.  0572
Paper No.  2020-SAT-P0102-P020
Chen Ching Chung
Preparation of ZnS material by CVD method
Lin Chi Feng;Chen Ching Chung

In this study, the ZnS material is prepared by CVD, first we use SEM and EDS to analysis of the material, and then use XRD for more detail observation and analysis, those detect instruments information to show that sulfur and zinc can be compounded ZnS by CVD method.

Manuscript ID.  0784
Paper No.  2020-SAT-P0102-P021
Yung-Jyun Liao
Effects of antimony incorporation in the InAlAsSb capping layer for the optical properties of the InAs submonolayer quantum dots
Yung-Jyun Liao;Wei-Sheng Liu;Guan-Ru Chen;Li-Cheng Huang

The optical properties of the InAs sub-monolayer quantum dots (SML QDs) were improved by the overgrowth of an InAlAsSb capping layer on the QDs. In addition, the type I energy band alignment of InAlAsSb capped SML QDs was verified by the power-dependent photoluminescence measurement.

Manuscript ID.  0087
Paper No.  2020-SAT-P0102-P022
Tsung-Chih Wan
High-performance nanostructured p-Cu2O/n-Si heterojunction photodiodes
Chun-Ying Huang;Fang-Chi Lo;Tsung-Chih Wan

A photodetector with a simple structure that uses a nanostructured p-Cu2O/n-Si heterojunction is purposed. This device features a high responsivity of 0.55 A/W at a reverse bias of -5 V. The p-Cu2O/n-Si heterojunction also has a high response speed (<10 ms) because there is a built-in potential within p-n junction

Manuscript ID.  0697
Paper No.  2020-SAT-P0102-P023
Fu-Li Hsiao
Extraordinary acoustic transmission analysis using simple spring-mass model
Ying-Pin Tsai;Fu-Li Hsiao

Extraordinary acoustic transmission (EAT) is investigated numerically using a
square lattice array (SLA) of both-sides-open disk resonators (BSODRs) in a steel slab immersed in water. The BSODR resonance results in low-frequency EAT, and it is shown that the
BSODR’s resonant behavior can be predicted using a spring-mass model.

Manuscript ID.  0616
Paper No.  2020-SAT-P0102-P024
Jui-Wei Hsiao
Inkjet printing of DNA biomaterial on paper-based substrates
Hsin-Yen Chu;Jui-Wei Hsiao;Yu-Chueh Hung

We present the characterization of inkjet-printed DNA biomaterial on paper substrates. PL properties and energy transfer efficiency of DNA inks were characterized with different combinations of dyes, deposition orders, and paper substrates. The results suggest that DNA biomaterial may be a promising candidate to be implemented in inkjet printing platform.

Manuscript ID.  0069
Paper No.  2020-SAT-P0102-P025
Wei-Lun Chen
Preparation of Light Extraction Layer for Green OLED by Using Imprinting
Tzu-Yi Wang;Wei-Lun Chen;Su-Hua Yang

This study focuses on the light extraction efficiency of green organic light-emitting diodes (OLEDs). A light extraction layer prepared with nanowires was constructed on the external of OLEDs using the PDMS imprinting technology. The brightness of OLED with a light extraction layer was increased to 13190 cd/m2.

Manuscript ID.  0100
Paper No.  2020-SAT-P0102-P026
Sheng-Jie Hou
Using intermittent process to enhance the quality of Gallium doped ZnO thin film
Sheng-Jie Hou;Yen‑Sheng Lin;Chia-Hsien Teng;Kun‑Ta Wang

In this study, the called “Intermittent Process” is designed to enhance optoelectronic properties of Gallium-doped ZnO thin film, which is defined as discontinuously thin film growth process by inserting the intermittent time. Therefore, there are two main parameters are included, which are Intermittent Number (IN) and Intermittent Time (IT).

Manuscript ID.  0633
Paper No.  2020-SAT-P0102-P027
Shu Ching Chang
Optically switchable cholesteric liquid crystals in different texture and its applications
Shu Ching Chang;Han-Wei Tseng;Cheng-Kai Liu;Ko-Ting Cheng

In this study, the adopted optically switchable cholesteric liquid crystals (LCs) are made by left-handed chiral azobenzene and right-handed chiral doped nematic liquid crystals. Using the photoisomerization of the used azobenzene and polarizers, the smart window can be achieved.

Manuscript ID.  0675
Paper No.  2020-SAT-P0102-P028
Yu Tang Lin
Photocurrent detection of graphene with Au electrodes
Yu Tang Lin

The photo-currents in graphene was demonstrated by 2 electrodes with difference thickness of the metals. With the thick polycrystalline gold electrodes at the wavelength = 650 nm, the near-field photocurrent can be detectable even the transmittance is ~ 0.

Manuscript ID.  0720
Paper No.  2020-SAT-P0102-P029
Ming-En Hsu
Investigation of the optical properties of the InAs submonolayer quantum dots with GaAs/GaAsSb hole trapping structure
Ming-En Hsu;Wei-Sheng Liu;Ting-Kai Yan;Po-Hao Chang

In this study, sandwiching the InAs submonolayer quantum dots in the GaAs/GaAsSb hole-trapping structure can improve the crystal quality and optical performance of InAs SMLQDs.

Manuscript ID.  0747
Paper No.  2020-SAT-P0102-P030
Yi-Chung Yang
Interference autocorrelation based on CH3NH3PbBr3 perovskite crystals
Yi-Chung Yang;Cheng-Yu Yang;Ja-Hon Lin

By the intensity dependent PL using the Ti:sapphire laser as a light source, TPA effect has been demonstrated through the power law fitting to reveal the exponent around 2. Through the interferometric autocorrelator using the Ti:sapphire laser, we obtain the pulse duration of passive mode-locked Ti:sapphire laser around 103 fs.

Manuscript ID.  0035
Paper No.  2020-SAT-P0102-P031
Zhi Young Chen
Zinc Oxide Nanorods Grown with Two-Stage Hydrothermal Method Combined with Tungsten Oxide for Electrochromic Application
Jia Hua Yang;Zhi Young Chen;Su Hua Yang

The hierarchical ZnO nanorods (ZnRs) were prepared by the two-stage hydrothermal method. The high concentration of HMTA in the precursor can inhibit the lateral growth of nanorods, resulting in a concentrated structure size distribution and excellent verticality,
improved the step coverage problem caused and the electrochromic properties are obviously enhanced.

Manuscript ID.  0632
Paper No.  2020-SAT-P0102-P032
Apoorva Sood
Thermal Annealing Effect on Electrical Behaviours of β- Ga2O3 Lateral Schottky Barrier Diode
Apoorva Sood;Ray-Hua Horng

We fabricated lateral Schottky barrier diode and characterized the electrical behavior at different annealing time done on ohmic contact and compared with no annealing. COMSOL simulation was to determine electrons and holes concentration. It was observed that
sample annealed for 60s can withstand the high breakdown voltage up to 1kV.