Substrate temperature influence on ZnS thin films prepared by ultrasonic spray

Daranfed, Warda; Aida, M.S.; Hafdallah, Abdelkader; Lekiket, H.

doi:10.1016/j.tsf.2009.03.227

Cited by 76 publications

(25 citation statements)

References 14 publications

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“…3, it is worth to bear in mind that the Urbach tail energy is closely related to the disorder in the film network. One can see that a minimum Urbach energy was reached at 350°C, which means the adequate temperature for less disorder, which may be attributed to the similar ionic radius between O 2-and Zn 2+ , as it was expressed in the literatures [23][24][25][26]. The I-V characteristic of ZnO thin film is shown in Fig.…”

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confidence: 57%

Substrate Temperature Effect on Optical property of ZnO Thin Films

Rahal¹,

Benramache

Benhaoua³

2014

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Abstract. The transparent conducting ZnO thin films were deposited on glass substrate by ultrasonic spray technique. The optical, electrical and structural properties of the ZnO thin films were studied as a function of the substrate temperatures in the range of 300 to 400 °C. The as deposited film exhibit a hexagonal structure wurtzite and (101) oriented.The value of grain size G = 28 nm is measured of ZnO film at 350 °C. All the films having high transparency in the visible region, the band gap energy decreased from 3.44 to 3.29 eV with increasing the substrate temperatures from 300 to 400 °C, respectively according to the Burstein-Moss effect (blue shift of Eg). The Urbach energy decreased reaching to minimum at 350 °C; indicating to decrease of the defects. The electrical resistivity of the films at 350 °C is 50 Ω.cm. A systematic study on the influence of the substrate temperatures on the optical, electrical and structural properties of ZnO thin films deposited by ultrasonic spray has been reported.

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confidence: 57%

Substrate Temperature Effect on Optical property of ZnO Thin Films

Rahal¹,

Benramache

Benhaoua³

2014

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“…ZnS films have been deposited by a large variety of techniques such as spray pyrolysis, rf magnetron sputtering, molecular beam epitaxy (MBE), sol-gel, and chemical bath deposition (CBD) [4,5]. Among these methods, spray pyrolysis is well suited for the preparation of these films because of its simple and inexpensive experimental arrangement, vacuumless, ease of adding various doping materials, high growth rate, and mass deposition capability for homogeneous large area coatings, which are desirable for industrial and photovoltaic solar cell applications [6,7].…”

Section: Introductionmentioning

confidence: 99%

Growth, Electrical, and Optical Study of ZnS:Mn Thin Films

2012

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In this study, ZnS and Mn-incorporated (at 2%, 4%, and 6%) ZnS films were deposited onto glass substrates by ultrasonic spray pyrolysis technique, and the effect of Mn incorporation on the electrical and optical properties of ZnS films was investigated. In order to determine the electrical characterization, the resistivity measurements of the films were performed by four-probe technique. The optical studies such as transmittance, reflectance and band gap energies of the films were carried out by the UV-Vis transmission.

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“…At higher temperature the films became near stoichiometric ZnS material. For the S/Zn ration is fixed at 1 because, according to the literature [16] which is reported that the variation of [O/Zn] and [S/Zn] ratios as a function of substrate temperature, slowly increased with substrate temperature elevation and we observed that the films deposited at ratio between 0.7 and 1.2 have an amorphous structure except those filed ratio equal to 1 their cristallinity is improved. The deposition time and the spray rate were fixed at 60 min and 2ml min−1, respectively.…”

Section: Structural and Edx Analysismentioning

confidence: 61%

“…Depending on the preparation method, zinc sulfide exists in both cubic (β) and/or hexagonal (α) structures the deposit crystallizes and the cubic β phase dominates the α one. Cubic ZnS thin films have been reported previously by some workers [15] and hexagonal ones by W.Daranfed [16].…”

Section: Structural and Edx Analysismentioning

confidence: 85%

“…This shows the importance of the effect of the nature of the substrate, even at a constant temperature. Usually, Roughness is a basic parameter which indicates the deviation of a surface compared to a perfect plan to investigate the properties of a thin layer that varies the characteristics of the developed layer, as reported by W.Daranfed [16].…”

Section: Afm Analysismentioning

confidence: 99%

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