Synthesis and Luminescence Properties of Core/Shell ZnS:Mn/ZnO Nanoparticles

Jiang, Daixun; Cao, Lixin; Liu, Wei; Su, Ge; Qu, Hua; Sun, Yun; Dong, Bohua

doi:10.1007/s11671-008-9205-6

Cited by 82 publications

(34 citation statements)

References 37 publications

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“…Similar blue-shift in the highest intensity PL peak has been reported for other core-shell nanoparticles such as ZnS:Mn/ZnO, HgTe/CdTe core-shell nanoparticles. 24,[26][27][28] An intensity ratio 'I' defined as the ratio of the intensity of the peak attributed to the bandedge emission to the intensity of the peak attributed to O-vacancies is quite important. While 'I' corresponds to a value of 0.35 for SnO 2 nanoparticles, a value of 0.2 is observed for SnO nanoparticles.…”

Section: Analysis Of Pl Propertiesmentioning

confidence: 99%

Structural and photoluminescence properties of tin oxide and tin oxide: C core–shell and alloy nanoparticles synthesised using gas phase technique

et al. 2016

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In the present study, we report a controlled growth of tin oxide and tin oxide: carbon nanoparticles by an integrated method comprising of the gas phase agglomeration, electrical mobility based size selection, and in–flight sintering steps. The effect of in-flight sintering temperature and variation in growth environment (N2, H2 and O2) during nanoparticle formation, morphology and composition has been investigated by carrying out High Resolution Transmission Electron microscopy and X-Ray diffraction studies. The results highlight the novelty of the present technique to grow alloy and core-shell nanoparticles in which the stoichiometery (x) of SnOx and the mode of incorporation of carbon into the tin oxide lattice (alloy or core-shell structure), along with well-defined size can be controlled independently. Detailed Photoluminescence (PL) studies of well sintered monocrystalline SnO, SnOx and SnO2 nanoparticles along with SnOx:C and SnO2:C alloy and C@SnO core-shell nanoparticle has been carried out. The shift in the position and nature of PL peaks due to band edge, Sn interstitials and oxygen vacancy defect level energy states has been understood as a function of stoichiometery and nanoparticle structure (alloy and core-shell). These results suggest the possibility of tailoring the position of these levels by controlling the size, composition and alloying which is potentially important for gas sensing, photoconductivity and photo-electrochemical applications.

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Section: Analysis Of Pl Propertiesmentioning

confidence: 99%

Structural and photoluminescence properties of tin oxide and tin oxide: C core–shell and alloy nanoparticles synthesised using gas phase technique

et al. 2016

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“…ZnO thin film is an n-type semiconductor with an optical gap of about 3.3 eV, and it exhibits a high transmittance in the visible region of the radiation spectra [5][6][7]. Moreover, ZnO thin films used in transparent conductive contacts, solar cells, laser diodes, ultraviolet lasers, thin film transistors, optoelectronic and piezoelectric applications to surface acoustic wave devices [8,9]. Recently, ternary Zn 1Àx Mg x O (ZMO) with wider band gap than ZnO (E g ¼ 3.37 eV) has received much attention due to its potential applications in ultraviolet optoelectronic devices [10,11].…”

Section: Introductionmentioning

confidence: 99%

Fabrication and Characterization of Zn1−x Mg x O Films for Photovoltaic Application

Gençyılmaz

Atay

Akyüz

2015

Progress in Clean Energy, Volume 1

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Zn 1Àx Mg x O (ZMO) films were prepared by the ultrasonic spray pyrolysis technique and effects of doping on structural, optical, electrical, and surface properties were examined. The film structures were studied by X-ray diffraction. X-ray diffraction patterns of the films showed that the ZMO films exhibited hexagonal wurtzite crystal structure with a preferred orientation along (0 0 2) direction. Texture coefficient, grain size values, and lattice constants were calculated. The optical properties like transmission, reflection, and absorption were investigated with UV-Vis spectrophotometer. The optical measurements reveal a shift in absorption edge and optical band gap of ZMO films changed with Mg content. Optical parameters (refractive index, extinction coefficient) and thicknesses of the films were investigated by spectroscopic ellipsometry (SE). Surface and electrical properties of the films were studied using atomic force microscopy and four-probe technique, respectively. After all investigations, it is concluded that the ZMO thin films can be used in photovoltaic solar cells as window materials and cell efficiencies can be increased using different content rates.

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“…Most of the work in this direction has been done on ZnO core/ZnS shell and in one dimensional structure [13][14][15][16][17]. Very little work has been done on inverted core/shell structure of ZnS/ZnO which focused on synthesis of ZnS/ZnO micro/nano spheres [18][19][20], quantum dots [21,22] and NPs [23], nanobelt heterostructures [24], nanoribbons [25] and study of their optical properties as well as photoanode in dye sensitized solar cell [26]. To the best of our knowledge, no work has been reported on inverted core/shell dilute magnetic semiconductor structures of doped ZnS/ZnO.…”

Section: Introductionmentioning

confidence: 99%

Tailoring magnetic and photoluminescence properties in ZnS/ZnO core/shell nanostructures through Cr doping

Chawla¹,

Sharma²,

Kotnala³

2013

Applied Surface Science

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Synthesis and Luminescence Properties of Core/Shell ZnS:Mn/ZnO Nanoparticles

Cited by 82 publications

References 37 publications

Structural and photoluminescence properties of tin oxide and tin oxide: C core–shell and alloy nanoparticles synthesised using gas phase technique

Structural and photoluminescence properties of tin oxide and tin oxide: C core–shell and alloy nanoparticles synthesised using gas phase technique

Fabrication and Characterization of Zn1−x Mg x O Films for Photovoltaic Application

Tailoring magnetic and photoluminescence properties in ZnS/ZnO core/shell nanostructures through Cr doping

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