UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS

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Conference: Bucharest University Faculty of Physics 2017 Meeting


Section: Solid State Physics and Materials Science


Title:
Template preparation and characterization of CdTe nanowires


Authors:
Melania ONEA (1,2), Elena MATEI (1), Andreea COSTAS (1), Monica ENCULESCU (1), Ionut ENCULESCU (1)


Affiliation:
1) National Institute of Materials Physics, Bucharest - Magurele, Romania

2) Faculty of Physics, University of Bucharest, Bucharest - Magurele, Romania



E-mail
melania.onea@infim.ro


Keywords:
CdTe, nanowires, electrodeposition, template


Abstract:
The applications of CdTe are ranging from solar cells to transistors. Our aim is to obtain CdTe nanowires that could be used in the structure of a functional transistor. By reducing the dimensions from bulk to nanostructures one can consequently shrink the dimensions of a device and obtain a better control of its proprieties and a reduction of the used resources. Among the nanostructures, nanowires (quasi 1 dimensional structures) have remarkable characteristics derived from their high surface to volume ratio which makes them more sensitive to surrounding stimuli. For the preparation of CdTe nanowires we chose the electrodeposition technique, one of the advantages of this method being the low cost, the control the compositional characteristics and also the properties of the material being similar to those in more expensive methods. Polycarbonate ion track membranes were used as templates to obtain CdTe nanowires. Morphological (SEM), optical (reflection), structural (XRD) and compositional (EDX) measurements were performed in order to assess the quality of the nanostructures.


References:

[1] E. Matei, C. Florica, A. Costas, M.E. Toimil-Molares, I. Enculescu, Beilstein J. Nanotechnol. 2015, 6, 444–450.

[2] I. Enculescu; M. Sima; M. Enculescu; Enache, M.; Ion, L.; Antohe, S.; Neumann, R., Physica Status Solidi B-Basic Solid State Physics, Volume 244, Issue 5, p.1607-1611 (2007)

[3] M. Sima, I. Enculescu, C. Trautmann, R. Neumann, Journal of Optoelectronics and Advanced Materials Vol. 6, No. 1, March 2004, p. 121 - 125