Studies on cadmium selenide (CdSe) thin films deposited by spray pyrolysis

Yadav, Abhijit A.; Barote, M.A.; Masumdar, E.U.

doi:10.1016/j.matchemphys.2009.12.039

Cited by 120 publications

(37 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…According to Zhao et al [1], this wide bandgap favours absorption over a 2 wide range of the visible spectrum. The deposition of CdSe thin film has been achieved using different growth methods such as pulsed laser deposition [2], thermal evaporation [3], chemical bath deposition (CBD) [2,[4][5], spray pyrolysis [6][7] and electrodeposition [8][9][10][11][12]. Among the above mentioned deposition techniques, the electrodeposition method is suitable because of its low temperature growth, its low capital cost and the ability to control the film thickness by varying the deposition time and potential.…”

Section: Introductionmentioning

confidence: 99%

Development of CdSe thin films for application in electronic devices

Olusola

Echendu

Dharmadasa

2014

J Mater Sci: Mater Electron

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Development of CdSe thin films for application in electronic devices

Olusola

Echendu

Dharmadasa

2014

J Mater Sci: Mater Electron

View full text Add to dashboard Cite

“…Properties of thin films depends on growth techniques and preparation conditions. Several preparation techniques are used to prepare CdSe thin films including thermal evaporation [2], chemical bath deposition [3], spray pyrolysis and [4] solution growth method [5].…”

Section: Introductionmentioning

confidence: 99%

Effect of Ag in CdSe thin films prepared using thermal evaporation

Santhosh

Bangera

Shivakumar³

2017

Физика И Техника Полупроводников

View full text Add to dashboard Cite

It has been a general practice to dope thin films with suitable dopants to modify the properties of the films to make them more suitable for potential applications. When the dopant concentrations are low, they do not normally affect the structure and morphology of the films. However, it may lead to drastic changes in electronic properties of the films. This might result from the dopant getting incorporated into the lattice of the material of the films. Cadmium selenide is an important compound semiconductor material with an attractive energy band gap. The present work relates to an attempt made to dope CdSe thin films with silver. CdSe : Ag (1 to 5%) thin films were deposited on glass substrates at an optimized substrate temperature of 453 K using thermal evaporation technique. The grown films were analyzed using X-ray diffraction, scanning electron microscopy (SEM), energy dispersive analysis of X-ray (EDX) techniques. It is observed that undoped CdSe thin films and CdSe : Ag films have hexagonal structure. The grain size was found to increase marginally with an increase in the Ag concentration. The optical band gap of the films determined by optical transmission measurements agree with that of CdSe. Electrical conductivity is observed to increase from 10 −4 to 3.66 ( · cm) −1 on addition of silver. The variation of resistance with temperature indicates that the prepared films consist of CdSe and Ag existing as two separate phases coexisting and contributing individually to the resistivity of the films.

show abstract

“…CdSe and CdTe are highly photosensitive and direct optical band gap materials (1·74 and 1·45 eV, respectively), which render them promising for usage in photovoltaic devices. 1 Beside these applications, CdSe and CdTe have also gained importance in optoelectronic applications over recent decades. CdSe and CdTe are being used as the window and absorber layer, respectively, in photovoltaic devices.…”

Section: Introductionmentioning

confidence: 99%

“…4 CdSe and CdTe can be deposited by different techniques, namely spray pyrolysis, 1 thermal evaporation, 3,5,6 chemical bath deposition, 7 radio frequency sputtering 8 and dip coating. 9 Yadav et al 1 and Cristian et al 3 deposited CdSe using spray pyrolysis and thermal evaporation and studied the influence of the preparation condition on the structural and optical properties of the CdSe films. They also showed that the resistivity of the films exhibited semiconductor behavior and the band gap ranges from 1·65 to 1·75 eV for increasing substrate temperature and the speed of substrate rotation during deposition.…”

Section: Introductionmentioning

confidence: 99%

Studies on cadmium telluride–cadmium selenide bilayer

ShreeBalakrishnan¹,

PriyaSubramanian²,

RanjaniPerchamy³

et al. 2015

Nanomaterials and Energy

View full text Add to dashboard Cite

Group II-VI elements of the periodic table are suitable for electronic and optoelectronic applications. Cadmium selenide (CdSe) and cadmium telluride (CdTe) bilayer films were deposited onto well-cleaned glass substrates using vacuum evaporation technique. These films were analyzed using X-ray diffraction, field emission scanning electron microscopy (FE-SEM), energy dispersive X-ray analysis (EDAX) and UV-visible spectrophotometry to study their microstructural, morphological and optical properties. Crystallinity of CdSe film increased with increase in film thickness, which in turn favored the crystallinity of the CdTe layer deposited over CdSe. The CdTe/CdSe bilayer showed globular surface morphology, and the grain size of the films measured by FE-SEM micrographs range from 16 to 31 nm. EDAX analysis confirmed the presence of cadmium (Cd), selenium (Se) and tellurium (Te). Two electronic transitions were observed in the optical band gap of the CdTe/CdSe bilayer whose energy levels lie in between the energy band gap of the bulk CdTe and CdSe semiconductors. These electronic transitions are mainly due to the spin orbit split of valence band energy levels. IntroductionEco-friendly electricity-generation techniques, such as solar, geothermal and wind energy, are being used increasingly due to depleting levels of fossil fuels and environmental crises. Solar energy is the main source of eco-friendly electricity and has been used for several decades. Solar cells utilize bulk silicon (Si), and the production cost of Si is high. Hybrid solar cells utilize cadmium (Cd)-based binary compounds such as cadmium selenide (CdSe) and cadmium telluride (CdTe) due to their high absorption coefficients which envelop wider range of visible spectrum compared to Si solar cells. CdSe and CdTe are highly photosensitive and direct optical band gap materials (1·74 and 1·45 eV, respectively), which render them promising for usage in photovoltaic devices.1 Beside these applications, CdSe and CdTe have also gained importance in optoelectronic applications over recent decades. CdSe and CdTe are being used as the window and absorber layer, respectively, in photovoltaic devices.2 Additionally, CdTe and CdSe are used in various other devices, such as thin film transistors, solar cell-based devices, photoconductors, gas sensors, acousto-optical devices and photographic photoreceptors, 3 and also in antibacterial applications. Yadav et al. 1 and Cristian et al. 3 deposited CdSe using spray pyrolysis and thermal evaporation and studied the influence of the preparation condition on the structural and optical properties of the CdSe films. They also showed that the resistivity of the films exhibited semiconductor behavior and the band gap ranges from 1·65 to 1·75 eV for increasing substrate temperature and the speed of substrate rotation during deposition. Melvin David Kumar and Suganthi 5 prepared a CdTe/CdSe multilayer using the thermal evaporation technique and studied its structural and electrical properties. Dutta and Saikia 6 deposited a CdS, C...

show abstract

Studies on cadmium selenide (CdSe) thin films deposited by spray pyrolysis

Cited by 120 publications

References 24 publications

Development of CdSe thin films for application in electronic devices

Development of CdSe thin films for application in electronic devices

Effect of Ag in CdSe thin films prepared using thermal evaporation

Studies on cadmium telluride–cadmium selenide bilayer

Contact Info

Product

Resources

About