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Linear and nonlinear optical analysis on semiorganic-proline cadmium chloride single crystal

Chinese Physics B 2018年第4期27卷 476-482页

作者： mohd Anis m I Baig S S Hussaini m D Shirsat m.hd.shkir H A Ghramh Department of Physics Sant Gadge Baba Amravati University Amravati-444602 Maharashtra India Ram meghe College of Engineering and management Amravati-444701 Maharashtra India Crystal Growth Laboratory Department of Physics Milliya Arts Science and Management Science College Beed431122 Maharashtra India RUSA Center for Advanced Sensor Technology Department of Physics Dr. Babasaheb-Ambedkar-Marathwada University A urangabad-431005 Maharashtra India Research Center for Advanced materials Science (RCAmS) King Khalid University P. O. Box 9004 Abha-61413 Saudi Arabia Advanced Functional materials & Optoelectronic Laboratory (AFmOL) Department of Physics College of Science King Khalid University P. O. Box 9004 Ahha-61413 Saudi Arabia

In the current investigation,L-proline cadmium chloride monohydrate（LPCC） single crystal is grown by a slow solvent evaporation technique to identify its credibility for nonlinear optical device *** constituent elements of LPCC crystal are determined by the energy dispersive spectroscopic（EDS） *** single crystal x-ray diffraction technique is used to determine the structural dimensions of LPCC *** UV-visible studies are carried out within a wavelength range of 200 nm–1100 nm to determine the optical transmittance of LPCC *** linear optical parameters of LPCC crystal are evaluated using the transmittance data to discuss its importance for distinct optical *** Nd：YAG laser assisted Kurtz–Perry test is carried out to determine the enhancement in second harmonic generation efficiency of LPCC crystal with reference to KDP *** Z-scan technique is employed to assess the third order nonlinear optical（TONLO） properties of LPCC crystal at 632.8 *** Z-scan data are utilized to evaluate the TONLO refraction,absorption and susceptibility of LPCC *** color oriented luminescence behavior of LPCC crystal is investigated within a spectral range of 350 nm–700 *** dependence of dielectric constant and dielectric loss on temperature and frequency is evaluated through the dielectric measurement studies.

关键词： crystal growth dielectric studies nonlinear optical materials optical studies

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microwave-assisted synthesis of mg:PbI2 nanostructures and their structural,morphological,optical,dielectric and electrical properties for optoelectronic technology

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Chinese Physics B 2020年第11期29卷 420-426页

作者： m.hd.shkir Ziaul Raza Khan T Alshahrani Kamlesh VChandekar m Aslam manthrammel Ashwani Kumar S AlFaify Advanced Functional materials and Optoelectronics Laboratory(AFmOL) Department of PhysicsCollege of ScienceKing Khalid UniversityAbha 61413P.O.Box 9004Saudi Arabia Department of Physics College of ScienceUniversity of HailP.O.Box 2440HailSaudi Arabia Department of Physics College of SciencePrincess Nourah Bint Abdulrahman UniversityRiyadh 11671Saudi Arabia Department of Physics Rayat Shikshan Sanstha’sKarmaveer Bhaurao Patil CollegeVashiNavi Mumbai 400703India Department of Physics IK Gujral Punjab Technical UniversityJalandhar 144603India

This work reports the cost-effective growth of mg:PbI2 nanostructures with 0,1,2.5 and 5.0 wt.%mg doping ***,vibrational,morphological properties are analyzed using x-ray diffraction(XRD),Raman spectroscopy and scanning electron microscopy(SEm).XRD and Raman studies confirm the monophasic hexagonal system of mg:PbI2,and no additional impurity peaks are *** Scherrer formula is used to determine sizes of crystallites to be in the range of 47-52 ***/SEm e-mapping analyses confirm the incorporation of mg in PbI2 matrix and its uniform distribution throughout the *** hexagonal nanosheet-and nanoplate-like morphologies are detected in SEm images for pure and mg-doped *** optical band gap of nanostructures is obtained from Tauc’s relation to be in the range 3.0-3.25 *** and electrical properties are found in significant enhancement as mg doping in PbI2 matrix,also the conduction mechanism is discussed.

关键词： mg:PbI2 nanostructures structural properties optical band gap dielectric constant ac conductivity

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Enhancement in photovoltaic properties of Nd:SnS films prepared by low-cost NSP method

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Rare metals 2022年第5期41卷 1661-1670页

作者： S.Sebastian I.Kulandaisamy A.m.S.Arulanantham S.Valanarasu A.Kathalingam m.hd.shkir Salem AlFaify PG&Research Department of Physics Arul Anandar CollegeKarumathurMadurai 625514India millimeter Wave Innovation Technology Research Center(mINT) Dongguk University-SeoulSeoul 04620Republic of Korea Advanced Functional materials&Optoelectronics Laboratory(AFmOL) Department of PhysicsFaculty of ScienceKing Khalid UniversityAbha 9004Saudi Arabia

The inner transition metal(ITm) neodymium(Nd)-doped tin sulfide(Nd:SnS) thin films with various Nd concentrations were coated by nebulizer spray pyrolysis(NSP) technique at 350℃. All the coated films were analyzed for their structural, optical and photoelectrical properties. X-ray diffractometer(XRD) study showed(111) direction as the highly preferred orientation with orthorhombic crystal structure for all the films. The intensity of the peaks was found to increase until 5 at% Nd doping and then reduced for higher(7 at% Nd) doping concentration. Atomic force microscopic(AFm) images of the films proclaimed an increase in the surface and line roughness of the films by increasing Nd *** analysis on the films showed a variation in energy gap from 2.05 to 1.69 eV when the doping concentration increased from 0 at% to 7 at%. At 5 at% Nd doping, the photoluminescence(PL) spectra displayed a single strong emission peak at 723.1 nm with enhanced intensity corresponding to near-band-edge emission. All the SnS thin films exhibited p-type behavior with the lowest resistivity of ~ 4.311 Ω·cm and high carrier concentrations of ~ 1.441 × 10^(17)cm^(-3) for 5 at% Nd doping level as observed from Hall effect studies. Furthermore, fluorinedoped tin oxide(FTO)/n-CdS/p-Nd:SnS hetero-junction solar cells were prepared and the current–voltage curve in dark and light condition was obtained for the device. An efficiency of 0.135% was observed for the solar cell fabricated with 5 at% Nd-doped SnS thin film.

关键词： Rare earth doping Neodymium SnS thin films Nebulizer spray Optical studies Solar cells

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