Optical and magnetic properties of PVP surfactant with Cu doped CdS nanoparticles

Muruganandam, S.; Anbalagan, G.; Murugadoss, Govindhasamy

doi:10.1016/j.ijleo.2016.11.053

Cited by 16 publications

(4 citation statements)

References 18 publications

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“…The similar decrease of peak intensity was reported in CdS with addition of Cu levels up to 5% by Muruganandam et. al [52]. In the case of peak position change, it falls down moderately at Cu = 1% and increases slightly during Cu = 3% addition.…”

Section: Resultsmentioning

confidence: 89%

Crystallographic, Energy Gap, Photoluminescence and Photo-Catalytic Investigation of Cu Doped Cd0.9Zn0.1S Nanostructures by Co-precipitation Method

Prabu

Jesuraj

Muthukumaran³

2021

J Inorg Organomet Polym

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The controlled synthesis of Cd 0.9 Zn 0.1 S, Cd 0.89 Zn 0.1 Cu 0.01 S and Cd 0.87 Zn 0.1 Cu 0.03 S nanostructures by simple chemical co-precipitation technique was reported. The XRD investigation con rmed the basic CdS cubic structure on Zn-doped CdS and also Zn, Cu dual doped CdS with no secondary/impurity related phases. No modi cation in cubic structure was detected during the addition of Zn/Cu into CdS. The reduction of crystallite size from 63 Å to 40 Å and the changes in lattice parameter con rmed the incorporation of Cu into Cd 0.9 Zn 0.1 S and generation of Cu related defects. The shift of absorption edge along upper wavelength region and elevated absorption intensity by Cu doping can be accredited to the collective consequence of quantization and the generation of defect associated states. The enhanced optical absorbance and the reduced energy gap recommended that Cd 0.87 Zn 0.1 Cu 0.03 S nanostructure is useful to enhance the e ciency of opto-electronic devices. The presence of Cd-S / Zn-Cd-S /Zn/Cu-Cd-S chemical bonding were con rmed by Fourier transform infrared investigation. The elevated green emissions by Cu incorporation was explained by decrease of crystallite size and creation of more defects.Zn, Cu dual doped CdS nanostructures are recognized as the possible and also e cient photo-catalyst for the removal dyes like methylene blue. The enhanced photo-catalytic behaviour of Zn, Cu dual doped CdS is the collective consequences of high density electron-hole pairs creation, enhanced absorbance in the visible wavelength, surface area enhancement, reduced energy gap and the formation of novel defect associated states. The stability measurement signi ed that Cu doped Cd 0.9 Zn 0.1 S exhibits superior dye removal ability and better stability even after 6 repetitive runs with limited photo-corrosion.

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Section: Resultsmentioning

confidence: 89%

Crystallographic, Energy Gap, Photoluminescence and Photo-Catalytic Investigation of Cu Doped Cd0.9Zn0.1S Nanostructures by Co-precipitation Method

Prabu

Jesuraj

Muthukumaran³

2021

J Inorg Organomet Polym

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“…Polymers like PVP, have been used to control the morphology and size distributions in various nanoparticle synthesis. [8][9][10] PVP is extensively used in the synthesis of nanoparticles as a stabilizer, [11] molding agent, [12] or reducing agent. [13] Uses of PVP, during nanoparticle preparation process could influence nucleation, particle growth, and particle interactions.…”

Section: Introductionmentioning

confidence: 99%

Role of Polyvinylpyrrolidone (PVP) on Controlling the Structural, Optical, and Electrical Properties of Vanadium Pentoxide (V₂O₅) Nanoparticles

Neupane

Hari

2020

ChemistrySelect

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Different molar concentrations (0.05-0.2 M) of vanadium pentoxide nanoparticles were synthesized with and without polyvinylpyrrolidone (PVP) using hydrothermal method. The growth mechanism with different molar concentrations as well as the effect of PVP on the structural, optical, and electrical properties have been investigated. The size of the particles was measured from transmission electron microscopy (TEM) and x-ray diffraction spectroscopy (XRD). Optical properties were analyzed through photoluminescence and absorption measurement. The electrical transport properties were analyzed by impedance spectroscopy and Van der Pauw method. From impedance measurements, dominance of grain boundary resistance over grain resistance was observed. The resistivity also decreased with increasing molar concentrations of nanoparticles with and without PVP. The highest temperature coefficient of resistance (TCR) value of À 2.33 %/K with the lowest resistivity of 0.02 Ω. cm for V 2 O 5 nanoparticle of 0.2 M concentration without using PVP was observed. Therefore, such V 2 O 5 nanoparticles are a potential material for microbolometer applications.

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“…В спектре ФЛ структур ZnS : Cu наблюдаются полосы в синем (∼ 400, 470−480 nm) и зеленом (∼ 530 nm) диапазонах. Структуры CdS : Cu люминесцируют в области спектра 700 nm [6,8,9]. В наноразмерных кристаллах ионы Cu 2+ восстанавливаются до Cu + [6,10].…”

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“…В наноразмерных кристаллах ионы Cu 2+ восстанавливаются до Cu + [6,10]. Механизм их внедрения в кристаллическую решетку полупроводниковой матрицы является дискуссионным [6,[8][9][10]. При легировании полупроводниковых кристаллов ионами Ln 3+ формируются изолированные центры узкополосной люминесценции [6,11,12].…”

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Фотолюминесценция композитов полиметилметакрилат / [(Zn,Cd)S : Mn,Cu,Eu]

Smagin¹,

Исаева²

2021

Письма В Журнал Технической Физики

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Nanoscale structures based on zinc and cadmium sulfides doped with Mn, Cu, and Eu ions were synthesized by the method of emerging reagents in a polymerizing medium of methyl methacrylate. The broadband photoluminescence of the compositions is associated with recombination processes at the defect levels of semiconductor structures. Narrow photoluminescence bands occur during electron transitions between the energy levels of Eu3+ ions. The excitation of photoluminescence occurs as a result of the interband transition and electron transitions to the levels of structural defects, as well as during self-absorption and energy transfer to the levels of Eu3+ ions.

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Optical and magnetic properties of PVP surfactant with Cu doped CdS nanoparticles

Cited by 16 publications

References 18 publications

Crystallographic, Energy Gap, Photoluminescence and Photo-Catalytic Investigation of Cu Doped Cd0.9Zn0.1S Nanostructures by Co-precipitation Method

Crystallographic, Energy Gap, Photoluminescence and Photo-Catalytic Investigation of Cu Doped Cd0.9Zn0.1S Nanostructures by Co-precipitation Method

Role of Polyvinylpyrrolidone (PVP) on Controlling the Structural, Optical, and Electrical Properties of Vanadium Pentoxide (V₂O₅) Nanoparticles

Фотолюминесценция композитов полиметилметакрилат / [(Zn,Cd)S : Mn,Cu,Eu]

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Optical and magnetic properties of PVP surfactant with Cu doped CdS nanoparticles

Cited by 16 publications

References 18 publications

Crystallographic, Energy Gap, Photoluminescence and Photo-Catalytic Investigation of Cu Doped Cd0.9Zn0.1S Nanostructures by Co-precipitation Method

Crystallographic, Energy Gap, Photoluminescence and Photo-Catalytic Investigation of Cu Doped Cd0.9Zn0.1S Nanostructures by Co-precipitation Method

Role of Polyvinylpyrrolidone (PVP) on Controlling the Structural, Optical, and Electrical Properties of Vanadium Pentoxide (V2O5) Nanoparticles

Фотолюминесценция композитов полиметилметакрилат / [(Zn,Cd)S : Mn,Cu,Eu]

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Role of Polyvinylpyrrolidone (PVP) on Controlling the Structural, Optical, and Electrical Properties of Vanadium Pentoxide (V₂O₅) Nanoparticles