Synthesis of thermally evaporated ZnSe thin film at room temperature

Khan, Taj Muhammad; Mehmood, Muhammad Farhan; Mahmood, Asif; Shah, Ajmal; Raza, Qaisar; Iqbal, Amjid; Aziz, Uzma

doi:10.1016/j.tsf.2011.03.045

Cited by 57 publications

(21 citation statements)

References 35 publications

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“…This observed trend may also be correlated with the defects related to spatial distribution of atoms due to average atomization energy which is increased with the annealing process. These obtained results on direct optical energy gap (E g ) are consistent with those previously reported [9,18,20,46]. On the other hand, the ratio of the effective oscillator energy to the optical band energy (E o /E g ) of the present ZnSe thin films was calculated and recorded in …”

Section: Page 28supporting

confidence: 92%

“…This technique is characterized by its low cost, reproducibility, easy substrate loading and high deposition rate. Furthermore, some key parameters of the deposition process and obtained films such as evaporation rate, film thickness, surface morphology and the structural state can be controlled [19,20]. Therefore, this technique is considered to be one of the fast and accurate deposition methods.…”

Section: A C C E P T E D Accepted Manuscriptmentioning

confidence: 99%

“…[8,9]. Sometimes, the hexagonal wurtzite structure, cubic structure, and a mixture of the two phases have been observed for the ZnSe films prepared by different methods [19][20][21][22][23]. Therefore, the crystal structure of ZnSe films is strongly influenced by deposition technique and preparation conditions.…”

Section: Optical Properties Measurementsmentioning

confidence: 99%

“…al. [20] for pulsed laser ablated ZnSe polycrystalline thin films. This observed trend may also be correlated with the defects related to spatial distribution of atoms due to average atomization energy which is increased with the annealing process.…”

Section: Page 28mentioning

confidence: 99%

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Study of optical properties of thermally evaporated ZnSe thin films annealed at different pulsed laser powers

Hassanien

Aly

Akl

2016

Journal of Alloys and Compounds

169

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Section: Page 28supporting

confidence: 92%

Section: A C C E P T E D Accepted Manuscriptmentioning

confidence: 99%

Section: Optical Properties Measurementsmentioning

confidence: 99%

Section: Page 28mentioning

confidence: 99%

See 2 more Smart Citations

Study of optical properties of thermally evaporated ZnSe thin films annealed at different pulsed laser powers

Hassanien

Aly

Akl

2016

Journal of Alloys and Compounds

169

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“…The phonon frequency shift can be associated with the stress and strain developed in the deposited films and may be a compressive one. 33 The sharpness of the peaks increases with respect to the Cu contents in the ZnSe host material. However, the sharpness of peaks dropped when the Cu concentration was increased beyond 10%.…”

Section: Raman Spectroscopymentioning

confidence: 98%

Tune-Ability of Physical Properties of Nanocrystalline Cu x Zn1−x Se Thin Films with Copper Concentration

Arslan

Zakria

Naz

et al. 2015

Journal of Elec Materi

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Thin films of Cu x Zn 1Àx Se (0 £ x £ 0.20) have been prepared on glass substrates at room temperature by closed space sublimation. The effect of copper (Cu) concentration on the structural, optical and electrical properties of the prepared films has been investigated using x-ray diffraction (XRD), Raman spectroscopy (RS), spectrophotometery and Hall effect measurements. XRD spectra show that all the films are cubic with (111) preferred orientation. The lattice constants, crystallite size, strain, and dislocation density were calculated from the XRD spectra. The structural analysis shows that crystallite size and crystallinity increase while strain and dislocation density decrease up to 10% Cu addition. However, an opposite trend has been observed beyond 10% Cu concentration. RS was carried out to investigate different phonon bands and crystalline phases. The strong reflection corresponding to the (111) texture in the XRD and the observed longitudinal optical (LO) phonon bands at 251 cm À1 and 497 cm À1 in the Raman spectra reveal the formation of single phase zinc-blende structure. The band gap energy decreases from 2.67 eV to 2.24 eV as the Cu concentration is increased from 0% to 20%. Hall effect measurements shows that electrical resistivity (q) is decreased by about three orders of magnitude from 10.4 9 10 À03 X-cm to 47.9 9 10 À03 X-cm while, carrier concentration and mobility (l) is increased with Cu addition.

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Investigation of copper/cobaltMOFsnanocomposite as an electrode material in supercapacitors

Maliha

Rani

Neffati

et al. 2022

Intl J of Energy Research

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Summary MOFs (Metal‐organic frameworks) emerging as newest materials with porous structure and ease to synthesize results in new material growth with enhanced surface area. Nanocrystalline copper‐metal organic framework (Cu‐MOF), cobalt‐metal organic framework (Co‐MOF), and copper/cobalt metal organic framework (Cu/Co MOF) nanocomposite have been synthesized via superficial cost‐effective hydrothermal method by using trimesic acid in order to restrict nano‐particle growth. X‐ray powder diffraction of the synthesized material indicates a reduction in the c‐lattice parameter for Cu/Co nanocomposite to value 8.062 Å. Existence of oxygen, copper, chromium, and cobalt inside the Cu/Co MOF nanocomposite is indicative of successful nanocomposite synthesis whereas surface morphology gives a fall in particle growth resulting value 3.53 nm. PL (Photoluminescence) spectra showing reduction in peaks whereas Raman spectra demonstrate the presence of both copper and cobalt peaks inside the nanocomposite. Electrochemical studies were analyzed using IM KOH as an electrolyte resulting in enhanced specific capacitance of 228 Fg−1 for Cu‐MOF, 280 Fg−1 for Co‐MOF, and 935.8 Fg−1 for Cu/Co MOF nanocomposite respectively. Galvanostatic charge discharge (GCD) analysis reveals power density value increment from 1092 Wkg−1 to 2495.5 Wkg−1 for Cu/Co MOF nanocomposite with energy density value decreases to 45.2 WhKg−1 allowing rapid ions transport at electrode/electrolyte interface suggesting Cu/Co MOF nanocomposite as a high performance electrode material with maximum storage capacity in supercapacitors.

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Synthesis of thermally evaporated ZnSe thin film at room temperature

Cited by 57 publications

References 35 publications

Study of optical properties of thermally evaporated ZnSe thin films annealed at different pulsed laser powers

Study of optical properties of thermally evaporated ZnSe thin films annealed at different pulsed laser powers

Tune-Ability of Physical Properties of Nanocrystalline Cu x Zn1−x Se Thin Films with Copper Concentration

Investigation of copper/cobaltMOFsnanocomposite as an electrode material in supercapacitors

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