scholarly journals Enhancement of Photon Absorption onBaxSr1-xTiO3Thin-Film Semiconductor Using Photonic Crystal

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Abd. Wahidin Nuayi ◽  
Husin Alatas ◽  
Irzaman S. Husein ◽  
Mamat Rahmat

Enhancement of photon absorption on barium strontium titanate (BaxSr1-xTiO3) thin-film semiconductor for mole fractionx=0.25, 0.35, 0.45, and 0.55 using one-dimensional photonic crystal with defect was investigated experimentally. The thin film was grown on transparent conductive oxide (TCO) substrate using chemical solution deposition method and annealed at 500°C for 15 hours with increasing rate of 1.6°C/min. From optical characterization in visible spectrum it was found that the average absorption percentages are 92.04%, 83.55%, 91.16%, and 80.12%, respectively. The BST thin film with embedded photonic crystal exhibited a relatively significant enhancement on photon absorption, with increasing value of 3.96%, 7.07%, 3.04%, and 13.33% for the respective mole fraction and demonstrating absorbance characteristic with flat feature. In addition, we also discuss the thin-film properties of attenuation constant and electrical conductivity.

2020 ◽  
Vol 855 ◽  
pp. 197-201
Author(s):  
Vania Rahmawaty ◽  
Endah Kinarya Palupi ◽  
Nazopatul Patonah ◽  
Tony Sumaryada ◽  
Irzaman

Barium Strontium Titanate (BaxSr1-xTiO3) thin films have been synthesized for mole fraction = 0; 0.125; 0.25; 0.375; and 0.500 using Chemical Solution Deposition (CSD) method. The thin film was grown on p-type silicon (100) substrate using spin coating technique and annealed at 850 ∘C for 8 hours with an increasing rate of 1.67 ∘C/minute. The BST thin film was characterized using LCR meter to obtain data on frequency, charge, and electrical current. We also model the occurrence of vicinity magnetic induction around the thin film produced by the current flow in the BST thin film. The electrical and magnetic induction response of BST thin film with variation of mole fraction are presented here.


2021 ◽  
Vol 11 (6) ◽  
pp. 14956-14963

Barium Strontium Titanate (BaxSr1-xTiO3) thin films have been fabricated for mole fraction (x= 0.000; 0.125; 0.250; 0.375; 0.500) on p-type silicon (100) substrate using Chemical Solution Deposition (CSD) method and spin coating technique. The film annealed at 850 ∘C for 8 hours with an increasing rate of 1.67 ∘C/minute. The BST thin film was characterized using an LCR meter that the film is given a different light intensity (0 lux, 4000 lux, 8000 lux). Data obtained from the LCR meter is conductance, capacitance, and impedance. Different mole fractions on Barium produce different electrical properties that show the value of electric conductivity, dielectric constant, impedance, and diffusion coefficient.


1999 ◽  
Vol 14 (4) ◽  
pp. 1190-1193 ◽  
Author(s):  
J. H. Kim ◽  
A. T. Chien ◽  
F. F. Lange ◽  
L. Wills

Epitaxial PbZr0.5Ti0.5O3 (PZT) thin films were grown on top of a SrRuO3 epitaxial electrode layer on a (100) SrTiO3 substrate by the chemical solution deposition method at 600 °C. The microstructure of the PZT thin film was investigated by x-ray diffraction and transmission electron microscopy, and the ferroelectric properties were measured using the Ag/PZT/SRO capacitor structure. The PZT thin film has the epitaxial orientational relationship of (001) [010]PZT ║ (001) [010]SRO ║ (001) [010]STO with the substrate. The remnant (Pr ) and saturation polarization (Ps) density were measured to be Pr ~ 51.4 µC/cm2 and Ps ~ 62.1 µC/cm2 at 5 V, respectively. Ferroelectric fatigue measurements show that the net-switching polarization begins to drop (to 98% of its initial value) after 7 × 108 cycles.


2021 ◽  
pp. 2150227
Author(s):  
Fei Zhang ◽  
Wei Zhou ◽  
Zhiming Huang

Thin films [Formula: see text] (MCNO), [Formula: see text] (MCNCuO) and [Formula: see text] (MCNCuScO) are prepared by Chemical Solution Deposition method. The results show that the addition of Cu and Cu/Sc elements can reduce the grain boundary energy and the grain boundary angle to improve the single crystal degree of MCNO thin film. Through the analysis of MCNCuScO thin film, it is found that the stability of spinel structure mainly depends on the octahedron rather than tetrahedron. The bandgap of the samples from small to large is separately MCNCuScO, MCNCuO and MCNO films. The absorptivity within the waveband of [Formula: see text] plays a decisive role in the performance of the detector. At the same frequency, the MCNCuO thin film detector has the highest voltage responsivity, followed by the MCNCuScO thin film detector, while the MCNO film detector has the lowest responsivity.


2012 ◽  
Vol 1390 ◽  
Author(s):  
Anke Teichler ◽  
Jolke Perelaer ◽  
Ulrich S. Schubert

ABSTRACTInkjet printing is a highly material-efficient solution deposition technique that enables the preparation of thin-film libraries using little amounts of materials. As a reproducible and precise patterning technique inkjet printing can be integrated into a combinatorial screening workflow that allowed the systematic characterization of thin-film properties of newly developed materials as well as the methodical investigation of preparation parameter that influence the performance of the inkjet printed layers.This contribution provides a demonstration of a combinatorial screening workflow that utilizes inkjet printing to evaluate structure-property relationships of polymer/fullerene blends for the application in organic photovoltaics. Using this approach it is shown that optimized blend compositions as well as printing conditions lead to improved performances of organic solar cell devices.


2012 ◽  
Vol 02 (01) ◽  
pp. 1250010 ◽  
Author(s):  
DIONIZY CZEKAJ ◽  
AGATA LISIŃSKA-CZEKAJ

Solid solutions of Ba 1-x Sr x TiO 3 (BST) type are very attractive for application in information technology, but also in microwaves for such electrically controlled devices as phase shifters, tunable filters, steerable antennas, varactors, etc. In the present study thin films of a BST solid solution with x = 0.4 (BST60/40) were prepared by the sol–gel-type chemical solution deposition method. The influence of y = 1, 3 and 5 mol.% MgO doping on synthesis of BST60/40 thin films was studied. Thermal analysis both differential and thermogravimetric were used to determine the thermochemical properties of dried BST60/40– MgO gel powders. A multilayer spin-coating approach was utilized for the Ba0.6Sr0.4TiO3–MgO thin film deposition on stainless steel substrates. X-ray diffraction analysis, SEM and EDS were utilized for thin film characterization in terms of its crystalline structure, microstructure and chemical composition. Raman spectroscopy investigation of MgO -doped Ba0.6Sr0.4TiO3 thin films grown on stainless steel substrates were also performed within the wavenumber range k = 40–1070 cm-1.


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