scholarly journals Optimization of the Alpha Energy Deposited in Radioluminescence Thin Film for Alphaphotovoltaic Application

2019 ◽  
Vol 2 ◽  
pp. 41-44
Author(s):  
Dessy Purbandari ◽  
Ferdiansjah Ferdiansjah ◽  
Tjipto Sujitno
Keyword(s):  
Thin Film ◽  
Zinc Sulfide ◽  
Model Simulation ◽  
Monte Carlo Model ◽  
Analytical Calculation ◽  
Alpha Particles ◽  
External Energy ◽  
Matter Transport ◽  
Fluorescence Efficiency ◽  
Deposition Depth

Activated zinc sulfide (ZnS) is a semiconductor material which able to emit photon in the form of visible light when expose to external energy. The capability of activated ZnS, mainly doped with silver (Ag) and copper (Cu), to convert radiation become light to make  it  potentially  applicable  as  the  radioluminescent  thin  film  for  alphaphotovoltaic-type  nuclear  battery.  One  of the  important specifications of the radioluminescence layer that influences the fluorescence efficiency is the thickness. This work presents a study on the thickness optimization for ZnS:Ag:Cu as the radioluminescent film for alpha particles using Monte Carlo model. Simulation to study alpha particles’ energy deposited by using Stopping and Range of Ions in Matter/TRansport of Ions in Matter (SRIM/TRIM) code. The model examined the transport of 5.485 MeV alpha particles emitted by to determine the best thickness based on energy deposition depth. Based on TRIM module simulation, the optimal thickness for radioluminescence film is approximately 19-22 µm. Most energy from 5.485 MeV alpha particles is deposited in 18.92 µm depth activated zinc sulfide. The results from SRIM/TRIM model then compare with  analytical calculation using Bragg-Kleman rule. The alpha particles stop at 22 µm from the SRIM/TRIM simulation while using Bragg-Kleman formula the alpha particles stop at 23.51 µm.

scholarly journals Growth of ZnS:Ag:Cu Thin Film Deposited on Glass Substrates using Thermal Evaporation Technique for Alpha-photovoltaic

2020 ◽  
Vol 21 (1) ◽  
pp. 8
Author(s):  
Emy Mulyani ◽  
Tjipto Sujitno ◽  
Dessy Purbandari ◽  
Ferdiansjah Ferdiansjah ◽  
Sayono Sayono
Keyword(s):  
Thin Film ◽  
Optical Properties ◽  
Glass Substrate ◽  
Thermal Evaporation ◽  
Energy Gap ◽  
Thermal Evaporation Technique ◽  
Optimal Thickness ◽  
Glass Substrates ◽  
Evaporation Technique ◽  
Deposition Depth

This paper presents the research on the growth of ZnS:Ag:Cu thin film on a glass substrate as a radio-luminescent material. The SRIM/TRIM software is used to determine the optimum thickness based on an energy deposition depth of 5.485 MeV Am 241 alpha radiation source on ZnS:Ag:Cu material. To increase the adhesive strength of the coating, initially, the glass substrate is etched using a plasma glow discharged at 280°C for 15 minutes. Multiple coatings of ZnS:Ag:Cu were  etched on the glass substrate; this was carried out using a thermal evaporation technique to achieve the optimal thickness (based on SRIM/TRIM simulation). The thin film thickness was observed using a scanning electron microscope (SEM). The optical properties of the un-etched, etched glass substrate and thin-film were characterized using UV-Vis spectrometer. Based on SRIM/TRIM simulation, the optimal thickness is 22 mm which can be achieved by coating three times. From optical properties of ZnS:Ag:Cu thin film and after being analysed using Taue plot method, it is found that the energy gap of ZnS:Ag:Cu thin film is 2.48 eV. It can be concluded that the addition of Ag and Cu doped decrease the energy gap of ZnS (3.66 eV).

Monte Carlo modeling of production of three alpha-particles in low energy n +12C interactions

2021 ◽  
Vol 36 (25) ◽  
pp. 2150182
Author(s):  
Khusniddin K. Olimov ◽  
Vladimir V. Lugovoi ◽  
Kosim Olimov ◽  
Maratbek Shodmonov ◽  
Kadyr G. Gulamov ◽  
...  
Keyword(s):  
Experimental Data ◽  
Monte Carlo ◽  
Monte Carlo Model ◽  
Three Dimensional ◽  
Alpha Particles ◽  
Incident Neutron ◽  
Excitation Energies ◽  
Collision Event ◽  
Direct Decay ◽  
Calculation Results

To describe [Formula: see text] interactions with production of three [Formula: see text]-particles at incident neutron kinetic energy of 14 MeV in a nuclear (photo) emulsion, a Monte Carlo model is proposed for four channels of decay of an excited carbon-12 nucleus into three [Formula: see text]-particles. The Monte Carlo calculation results describe well the experimental data on the distribution of the angle between the three-dimensional momenta of all pairs of [Formula: see text]-particles in a collision event, on the distribution of the angle between the projections of the momentum vectors of all pairs of [Formula: see text]-particles in collision event on each of the coordinate planes, on the distribution of the sum of the kinetic energies of all pairs of [Formula: see text]-particles in a collision event, and the distribution of projections of the momenta of [Formula: see text]-particles on the coordinate planes. The best agreement of the Monte Carlo model results with the experimental data is achieved if the direct decay [Formula: see text] and decay through the formation of an intermediate beryllium nucleus [Formula: see text] are generated with equal probabilities, while the excitation energies of 3.04 MeV, 1.04 MeV, and 0.1 MeV for the beryllium nucleus are generated with relative weights of 75%, 15%, and 10%, respectively.

THIN-FILM DOSIMETRY FOR NEUTRONS AND ALPHA PARTICLES

1982 ◽  
pp. 925-928 ◽  
Author(s):  
P.B. Price ◽  
D. O'Sullivan ◽  
S.P. Ahlen
Keyword(s):  
Thin Film ◽  
Alpha Particles ◽  
Film Dosimetry

Dispersion of zinc sulfide thin film on slab-type optical waveguide

1982 ◽  
Vol 21 (19) ◽  
pp. 3552 ◽  
Author(s):  
K. Sasaki ◽  
Y. Kudo ◽  
A. Fukuda ◽  
H. Awata ◽  
O. Hamano
Keyword(s):  
Thin Film ◽  
Zinc Sulfide ◽  
Optical Waveguide

scholarly journals Effect of Graphene Oxide Thin Film on Growth and Electrochemical Performance of Hierarchical Zinc Sulfide Nanoweb for Supercapacitor Applications

2018 ◽  
Vol 5 (18) ◽  
pp. 2636-2644 ◽  
Author(s):  
Muhammad F. Iqbal ◽  
Mahmood‐Ul‐Hassan ◽  
Aamir Razaq ◽  
Muhammad N. Ashiq ◽  
Yusuf V. Kaneti ◽  
...  
Keyword(s):  
Thin Film ◽  
Graphene Oxide ◽  
Electrochemical Performance ◽  
Zinc Sulfide ◽  
Oxide Thin Film ◽  
Supercapacitor Applications

NIST SRM 2708, Zinc Sulfide Thin Film on Polycarbonate for X-Ray Fluorescence Spectrometry

1992 ◽  
Vol 36 ◽  
pp. 273-278
Author(s):  
P.A. Pella ◽  
W.R. Kelly ◽  
K.E. Murphy ◽  
E.B. Steel ◽  
S.B. Schiller
Keyword(s):  
Thin Film ◽  
Zinc Sulfide ◽  
Ion Beam ◽  
Fluorescence Spectrometry ◽  
Similar Material ◽  
Filter Media ◽  
X Ray ◽  
Sputter Deposited ◽  
Beam Instrument

NIST SRM 2708 is a thin film of zinc sulfide approximately 0.02 μm thick that was sputter deposited on polycarbonate substrates using a NIST ion-beam instrument. It is intended for the standardization of x-ray fluorescence spectrometers, especially for analysis of air particulates or similar material collected on filter media.

Zinc Sulfide Nanoscaled Buffer Layers for Cu(In,Ga)Se2 Thin Film Solar Cells by Chemical Bath Deposition

2008 ◽  
Vol 51 ◽  
pp. 125-130 ◽  
Author(s):  
Rong Fuh Louh ◽  
Warren Wu
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Solar Cells ◽  
Zinc Sulfide ◽  
Chemical Bath Deposition ◽  
Energy Gap ◽  
Buffer Layers ◽  
Thin Film Solar Cells ◽  
Complexing Agents ◽  
Study Results

Chemical bath deposition (CBD) is a fairly simple synthetic route to prepare II-VI semicondutive zinc sulfide thin films, which can be prepared on the flat surface of glass or silicon wafer substrates in the solution containing the precursors of zinc and sulfur ions in terms of ambient conditions of varying acidity. This study particularly aims at the growth dependence and optical property of ZnS thin films in the CBD process by different experiment parameters, whereas we intend to choose suitable types of zinc ionic precursors to be coupled with various CBD parameters such as reaction temperature and time, precursor concentration, types and complexing agents as well as post-deposition heat treatment conditions. Addition of different concentration of ethylenediamine, ammonium sulfate, sodium citrate and hydrazine in the CBD reaction process was used to control the adequate growth rate of ZnS thin films. As a consequence, the rapid thermal annealing was employed to enhance the film uniformity and thickness evenness, transmittance and the energy gap of ZnS samples. The results would lead to a potential application of buffer layer for the Cu (In,Ga)Se2 based thin film solar cells. The analytic instrument including SEM, AFM, UV-VIS were used to examine the CBD-derived nanosized ZnS buffer layers for the thin film solar cells. The ZnS thin films prepared by the chemical bath deposition in this study results in film thickness of 80 ~ 100 nm, high transmittance of 80~85% and the energy gap of 3.89 ~ 3.98 eV.

Negative differential resistance in thin-film electroluminescent emitters based on zinc sulfide

2001 ◽  
Vol 46 (3) ◽  
pp. 342-345
Author(s):  
N. T. Gurin ◽  
A. V. Shlyapin ◽  
O. Yu. Sabitov
Keyword(s):  
Thin Film ◽  
Zinc Sulfide ◽  
Negative Differential Resistance ◽  
Differential Resistance
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