Growth and characterisation of screen-printed CdSe films

CdSe polycrystalline films have been prepared on ultra-clean glass substrates by a screen-printing technique and then annealed in air. The films prepared by this technique are comparatively thicker than those prepared by other, more sophisticated techniques and optimum conditions for preparing good...

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Bibliographic Details
Published in:Philosophical magazine letters 2010-07, Vol.90 (7), p.493-501
Main Authors: Kumar, Vipin, Sharma, Sachin K., Kumar, Sushil, Hussain, M., Sharma, T.P.
Format: Article
Language:English
Subjects:
Aluminum
Annealing
band gap
barrier height
Cadmium selenides
CdSe
Chemical compounds
Cold working, work hardening
annealing, quenching, tempering, recovery, and recrystallization
textures
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Conductivity
Cross-disciplinary physics: materials science
rheology
Diffraction
electrical conductivity
Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures
Energy gaps (solid state)
Exact sciences and technology
Glass
II-VI semiconductors
Intermetallics
materials characterisations
Materials science
Molecular structure
Optical constants: refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity
optical properties
Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation
Optical properties of bulk materials and thin films
Optimization
photovoltaics
Physics
Polycrystals
screen printing
sintering
Spectrum analysis
Surface double layers, schottky barriers, and work functions
Treatment of materials and its effects on microstructure and properties
X-ray diffraction
X-rays
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Summary:CdSe polycrystalline films have been prepared on ultra-clean glass substrates by a screen-printing technique and then annealed in air. The films prepared by this technique are comparatively thicker than those prepared by other, more sophisticated techniques and optimum conditions for preparing good quality screen-printed films have been found. The optical band gaps (E g ) of the films were determined by UV transmission spectroscopy. The zinc-blende structure of the films was confirmed by X-ray diffraction analysis. The Schottky barrier height and the ideality factor for Al/CdSe junctions were determined from current-voltage characteristics. The DC conductivity of the films was measured in vacuum by a two-probe technique.
ISSN:0950-0839
1362-3036
DOI:10.1080/09500831003767005