Structural and optical properties of CdTe-nanocrystals thin films grown by chemical synthesis

E. Campos-González; F. De Moure-Flores; L. E. Ramírez-Velázquez; K. Casallas-Moreno; A. Guillén-Cervantes; J. Santoyo-Salazar; G. Contreras-Puente; O. Zelaya-Angel

doi:10.1016/j.mssp.2015.03.005

Structural and optical properties of CdTe-nanocrystals thin films grown by chemical synthesis

E. Campos-González, F. De Moure-Flores, L. E. Ramírez-Velázquez, K. Casallas-Moreno, A. Guillén-Cervantes, J. Santoyo-Salazar, G. Contreras-Puente, O. Zelaya-Angel

Escuela Superior de Física y Matemáticas (ESFM)

Research output: Contribution to journal › Article › peer-review

21 Scopus citations

Abstract

By mans of a chemical synthesis technique stoichiometric CdTe-nanocrystals thin films were prepared on glass substrates at 70 C. First, Cd(OH)₂ films were deposited on glass substrates, then these films were immersed in a growing solution prepared by dissolution of Te in hydroxymethane sulfinic acid to obtain CdTe. The structural analysis indicates that CdTe thin films have a zinc-blende structure. The average nanocrystal size was 19.4 nm and the thickness of the films 170 nm. The Raman characterization shows the presence of the longitudinal optical mode and their second order mode, which indicates a good crystalline quality. The optical transmittance was less than 5% in the visible region (400-700 nm). The compositional characterization indicates that CdTe films grew with Te excess.

Original language	English
Pages (from-to)	144-148
Number of pages	5
Journal	Materials Science in Semiconductor Processing
Volume	35
DOIs	https://doi.org/10.1016/j.mssp.2015.03.005
State	Published - Jul 2015

Keywords

CdTe nanocrystals
CdTe thin films
Chemical synthesis
Te excess

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Campos-González, E., De Moure-Flores, F., Ramírez-Velázquez, L. E., Casallas-Moreno, K., Guillén-Cervantes, A., Santoyo-Salazar, J., Contreras-Puente, G., & Zelaya-Angel, O. (2015). Structural and optical properties of CdTe-nanocrystals thin films grown by chemical synthesis. Materials Science in Semiconductor Processing, 35, 144-148. https://doi.org/10.1016/j.mssp.2015.03.005

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title = "Structural and optical properties of CdTe-nanocrystals thin films grown by chemical synthesis",

abstract = "By mans of a chemical synthesis technique stoichiometric CdTe-nanocrystals thin films were prepared on glass substrates at 70 C. First, Cd(OH)2 films were deposited on glass substrates, then these films were immersed in a growing solution prepared by dissolution of Te in hydroxymethane sulfinic acid to obtain CdTe. The structural analysis indicates that CdTe thin films have a zinc-blende structure. The average nanocrystal size was 19.4 nm and the thickness of the films 170 nm. The Raman characterization shows the presence of the longitudinal optical mode and their second order mode, which indicates a good crystalline quality. The optical transmittance was less than 5% in the visible region (400-700 nm). The compositional characterization indicates that CdTe films grew with Te excess.",

keywords = "CdTe nanocrystals, CdTe thin films, Chemical synthesis, Te excess",

author = "E. Campos-Gonz{\'a}lez and {De Moure-Flores}, F. and Ram{\'i}rez-Vel{\'a}zquez, {L. E.} and K. Casallas-Moreno and A. Guill{\'e}n-Cervantes and J. Santoyo-Salazar and G. Contreras-Puente and O. Zelaya-Angel",

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Campos-González, E, De Moure-Flores, F, Ramírez-Velázquez, LE, Casallas-Moreno, K, Guillén-Cervantes, A, Santoyo-Salazar, J, Contreras-Puente, G & Zelaya-Angel, O 2015, 'Structural and optical properties of CdTe-nanocrystals thin films grown by chemical synthesis', Materials Science in Semiconductor Processing, vol. 35, pp. 144-148. https://doi.org/10.1016/j.mssp.2015.03.005

TY - JOUR

T1 - Structural and optical properties of CdTe-nanocrystals thin films grown by chemical synthesis

AU - Campos-González, E.

AU - De Moure-Flores, F.

AU - Ramírez-Velázquez, L. E.

AU - Casallas-Moreno, K.

AU - Guillén-Cervantes, A.

AU - Santoyo-Salazar, J.

AU - Contreras-Puente, G.

AU - Zelaya-Angel, O.

PY - 2015/7

Y1 - 2015/7

N2 - By mans of a chemical synthesis technique stoichiometric CdTe-nanocrystals thin films were prepared on glass substrates at 70 C. First, Cd(OH)2 films were deposited on glass substrates, then these films were immersed in a growing solution prepared by dissolution of Te in hydroxymethane sulfinic acid to obtain CdTe. The structural analysis indicates that CdTe thin films have a zinc-blende structure. The average nanocrystal size was 19.4 nm and the thickness of the films 170 nm. The Raman characterization shows the presence of the longitudinal optical mode and their second order mode, which indicates a good crystalline quality. The optical transmittance was less than 5% in the visible region (400-700 nm). The compositional characterization indicates that CdTe films grew with Te excess.

AB - By mans of a chemical synthesis technique stoichiometric CdTe-nanocrystals thin films were prepared on glass substrates at 70 C. First, Cd(OH)2 films were deposited on glass substrates, then these films were immersed in a growing solution prepared by dissolution of Te in hydroxymethane sulfinic acid to obtain CdTe. The structural analysis indicates that CdTe thin films have a zinc-blende structure. The average nanocrystal size was 19.4 nm and the thickness of the films 170 nm. The Raman characterization shows the presence of the longitudinal optical mode and their second order mode, which indicates a good crystalline quality. The optical transmittance was less than 5% in the visible region (400-700 nm). The compositional characterization indicates that CdTe films grew with Te excess.

KW - CdTe nanocrystals

KW - CdTe thin films

KW - Chemical synthesis

KW - Te excess

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U2 - 10.1016/j.mssp.2015.03.005

DO - 10.1016/j.mssp.2015.03.005

M3 - Artículo

SN - 1369-8001

VL - 35

SP - 144

EP - 148

JO - Materials Science in Semiconductor Processing

JF - Materials Science in Semiconductor Processing

ER -

Structural and optical properties of CdTe-nanocrystals thin films grown by chemical synthesis

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Keywords

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