• 337 Citations
  • 11 h-Index
19962019
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Research Output 1996 2019

  • 337 Citations
  • 11 h-Index
  • 25 Article
  • 22 Paper
  • 1 Scientific review
2019
3 Citations (Scopus)

Band-edge emission, defects, morphology and structure of in-doped ZnO nanocrystal films

El Filali, B., Jaramillo Gomez, J. A., Torchynska, T. V., Casas Espinola, J. L. & Shcherbyna, L., 1 Mar 2019, In : Optical Materials. p. 322-328 289 p.

Research output: Contribution to journalArticleResearchpeer-review

Nanocrystals
Photoluminescence
nanocrystals
photoluminescence
Defects

Emission, Er ion defects and structure of ZnO nanocrystal films prepared by ultrasonic spray pyrolysis

El Filali, B., Torchynska, T. V., Ramírez García, J. L., Casas Espinola, J. L. & Polupan, G., 15 Jun 2019, In : Materials Science in Semiconductor Processing. p. 161-166 144 p.

Research output: Contribution to journalArticleResearchpeer-review

ion emission
Spray pyrolysis
Ultrasonics
Nanoparticles
Nanocrystals
2018
Spray pyrolysis
Nanocrystals
pyrolysis
sprayers
Photoluminescence
3 Citations (Scopus)

Morphology, structure and emission of Al-doped ZnO nanocrystal films

Torchynska, T. V., El Filali, B., Polupan, G., Shcherbyna, L. & Casas Espinola, J. L., 1 Sep 2018, In : Journal of Materials Science: Materials in Electronics. p. 15452-15457 13906 p.

Research output: Contribution to journalArticleResearchpeer-review

Nanocrystals
nanocrystals
Photoluminescence
photoluminescence
Surface morphology
2017
1 Citation (Scopus)

Effect of dielectric constant on emission of CdSe quantum dots

Casas Espínola, J. L. & Hernández Contreras, X. A., 1 May 2017, In : Journal of Materials Science: Materials in Electronics. p. 7132-7138 6418 p.

Research output: Contribution to journalArticleResearchpeer-review

Semiconductor quantum dots
Permittivity
quantum dots
permittivity
Excitons

Emission Dependent on composition of Si-rich-SiN<inf>X</inf> Films obtained by PECVD

Jaramillo Gomez, J. A., Torchynska, T. V., Casas Espinola, J. L., Bentosa Gutiérrez, J. A., Khomenkova, L. & Slaoui, A., 16 Feb 2017.

Research output: Contribution to conferencePaperResearch

photoluminescence
silicon
silicon nitrides
gas flow
stoichiometry
1 Citation (Scopus)

Light emitting mechanisms dependent on stoichiometry of Si-rich-SiN<inf>x</inf> films grown by PECVD

Torchynska, T. V., Casas Espinola, J. L., Jaramillo Gomez, J. A., Bentosa Gutiérrez, J. A., Khomenkova, L. & Slaoui, A., 1 May 2017, In : Journal of Materials Science: Materials in Electronics. p. 6977-6981 6278 p.

Research output: Contribution to journalArticleResearchpeer-review

Plasma enhanced chemical vapor deposition
Stoichiometry
stoichiometry
Photoluminescence
photoluminescence
2015
14 Citations (Scopus)

Effect of the stoichiometry of Si-rich silicon nitride thin films on their photoluminescence and structural properties

Torchynska, T. V., Casas Espinola, J. L., Vergara Hernandez, E., Khomenkova, L., Delachat, F. & Slaoui, A., 30 Apr 2015, p. 65-69. 58 p.

Research output: Contribution to conferencePaperResearch

Nanoparticles
Raman Spectrum Analysis
Silicon
Transmission Electron Microscopy
Genetic Recombination
12 Citations (Scopus)

Structural and light emitting properties of silicon-rich silicon nitride films grown by plasma enhanced-chemical vapor deposition

Torchynska, T. V., Casas Espinola, J. L., Khomenkova, L., Vergara Hernandez, E., Andraca Adame, J. A. & Slaoui, A., 3 Jun 2015, In : Materials Science in Semiconductor Processing. p. 46-50 40 p.

Research output: Contribution to journalArticleResearchpeer-review

Silicon
Plasma enhanced chemical vapor deposition
Silicon nitride
silicon nitrides
Photoluminescence

Synthesis and characterization of CdTe/CdSe core/shell nanoparticles with high emission from 570 to 610 nm

Valencia, O. G. R., Espinola, J. L. C. & Tellez, M. C., 17 Jun 2015.

Research output: Contribution to conferencePaperResearch

quantum dots
nanoparticles
synthesis
photoluminescence
reaction time
2014
1 Citation (Scopus)
nanorods
pyrolysis
sprayers
ultrasonics
photoluminescence
16 Citations (Scopus)

Emission of ZnO:Ag nanorods obtained by ultrasonic spray pyrolysis

Velázquez Lozada, E., Torchynska, T. V., Casas Espinola, J. L. & Pérez Millan, B., 1 Jan 2014, In : Physica B: Condensed Matter. p. 111-115 99 p.

Research output: Contribution to journalArticleResearchpeer-review

Spray pyrolysis
Nanorods
pyrolysis
spray
nanorods
2 Citations (Scopus)

Emission variation in infrared (CdSeTe)/ZnS quantum dots conjugated to antibodies

Jaramillo Gómez, J. A., Casas Espinola, J. L. & Douda, J., 1 Jan 2014, In : Physica B: Condensed Matter. p. 72-74 64 p.

Research output: Contribution to journalArticleResearchpeer-review

antibodies
Antibodies
Semiconductor quantum dots
antibody
Photoluminescence
1 Citation (Scopus)
capping
Semiconductor quantum wells
Semiconductor quantum dots
Photoluminescence
well
2013

Comparative study of photoluminescence variation in InAs quantum dots embedded in InAlGaAs quantum wells

Casas Espinola, J. L., Torchynska, T. V., Diosdado, L. D. C. & Polupan, G., 1 Jan 2013.

Research output: Contribution to conferencePaperResearch

Quantum Dots
Temperature
Hot Temperature
indium arsenide

Comparative study of photoluminescence variation in InAs quantum dots embedded in InAlGaAs quantum wells

Casas Espinola, J. L., Torchynska, T. V., Cruz Diosdado, L. D. & Polupan, G., 1 Jan 2013, p. A51-A56. 0 p.

Research output: Contribution to conferencePaperResearch

quantum dots
crystals
temperature
thermal stability
shrinkage

Double core infrared (CdSeTe) / ZnS quantum dots Conjugated to IgG antibodies

Torchynska, T. V., Casas Espinola, J. L., Rodriguez, C. B., Douda, J. & Gazaryan, K., 1 Jan 2013.

Research output: Contribution to conferencePaperResearch

Quantum Dots
Immunoglobulin G
Antibodies
Raman Spectrum Analysis
Spectrum Analysis

Double core Infrared (CdSeTe) / ZnS quantum dots conjugated to Papiloma virus antibodies

Espinola, J. L. C., Torchynska, T. V., Gómez, J. A. J., Douda, J. & Gazarian, K., 1 Jan 2013.

Research output: Contribution to conferencePaperResearch

Quantum Dots
Viruses
Antibodies
Raman Spectrum Analysis
Human papillomavirus 16
6 Citations (Scopus)

Electronic effects in emission of core/shell CdSe/ZnS quantum dots conjugated to anti-Interleukin 10 antibodies

Vazquez, A. L. Q., Torchynska, T. V., Casas Espinola, J. L., Gómez, J. A. J. & Douda, J., 22 May 2013, In : Journal of Luminescence. p. 38-42 33 p.

Research output: Contribution to journalArticleResearchpeer-review

interleukins
Quantum Dots
antibodies
Interleukin-10
Semiconductor quantum dots

Emission and X ray diffraction in AlGaAs/InGaAs quantum wells with embedded InAs quantum dots

Tamayo, R. C., Moreno, I. J. G., Hernandez, A. V., Espinola, J. L. C. & Shcherbyna, L., 1 Jan 2013, p. 43-48. 38 p.

Research output: Contribution to conferencePaperResearch

Quantum Dots
X-Ray Diffraction
Hot Temperature
Temperature
Buffers

Emission modification in ZnO nanosheets at thermal annealing

Diaz Cano, A. I., Filali, B. E., Torchynska, T. V. & Casas Espinola, J. L., 1 Jan 2013.

Research output: Contribution to conferencePaperResearch

Nanosheets
Photoluminescence
Annealing
photoluminescence
annealing
6 Citations (Scopus)

Emission of CdSe/ZnS and CdSeTe/ZnS quantum dots conjugated to IgG antibodies

Torchynska, T. V., Casas Espinola, J. L., Díaz Cano, A., Douda, J. & Gazarian, K., 1 Jan 2013, In : Physica E: Low-Dimensional Systems and Nanostructures. p. 60-64 53 p.

Research output: Contribution to journalArticleResearchpeer-review

antibodies
Antibodies
Semiconductor quantum dots
Photoluminescence
Immunoglobulin G

Emission variation in CdSe/ZnS quantum dots conjugated to papilloma virus antibodies

Jaramillo Gómez, J. A., Torchynska, T. V., Casas Espinola, J. L. & Douda, J., 1 Jan 2013, p. 139-144. 124 p.

Research output: Contribution to conferencePaperResearch

viruses
antibodies
Viruses
Antibodies
Semiconductor quantum dots
7 Citations (Scopus)
viruses
antibodies
Viruses
Antibodies
Semiconductor quantum dots

Photoluminescence variation in InAs quantum dots embedded in InGaAs/AlGaAs quantum wells at thermal annealing

Moreno, I. J. G., Polupan, G. & Casas Espinola, J. L., 1 Jan 2013, p. A81-A86. 0 p.

Research output: Contribution to conferencePaperResearch

quantum dots
annealing
heat
crystals
temperature
10 Citations (Scopus)
capping
annealing
Semiconductor quantum wells
Semiconductor quantum dots
aluminum gallium arsenides

Photoluminescence variation in InAs Quantum dots embedded in InGaAs/AlGaAs Quantum wells at thermal annealing

Moreno, I. J. G., Polupan, G. & Espinola, J. L. C., 1 Jan 2013.

Research output: Contribution to conferencePaperResearch

capping
annealing
Semiconductor quantum wells
Semiconductor quantum dots
Photoluminescence
20 Citations (Scopus)

Structure and emission transformations in ZnO nanosheets at thermal annealing

Cano, A. I. D., Filali, B. E., Torchynska, T. V. & Espinola, J. L. C., 1 Mar 2013, In : Journal of Physics and Chemistry of Solids. p. 431-435 387 p.

Research output: Contribution to journalArticleResearchpeer-review

Nanosheets
Photoluminescence
Annealing
photoluminescence
annealing
24 Citations (Scopus)

"White" emission of ZnO nanosheets with thermal annealing

Diaz Cano, A. I., El Filali, B., Torchynska, T. V. & Casas Espinola, J. L., 1 Jan 2013, In : Physica E: Low-Dimensional Systems and Nanostructures. p. 24-28 21 p.

Research output: Contribution to journalArticleResearchpeer-review

Nanosheets
Annealing
photoluminescence
Photoluminescence
annealing
2012

Electronic effects in CdSe/ZnS quantum dots conjugated to IL-10 antibodies

Torchynska, T. V., Casas Espinola, J. L., Douda, J., Diaz Cano, A. I. & López De La Luz, O. S., 20 Aug 2012, p. 90-93. 80 p.

Research output: Contribution to conferencePaperResearch

antibodies
Antibodies
Interleukin-10
Semiconductor quantum dots
quantum dots

Emission and strain in InGaAs/GaAs quantum wells with InAs quantum dots obtained at different temperatures

Mascorro Alquicira, R. L., Casas Espinola, J. L., Velázquez Lozada, E., Polupan, G. & Shcherbyna, L., 1 Oct 2012, In : Superlattices and Microstructures. p. 844-850 758 p.

Research output: Contribution to journalArticleResearchpeer-review

Semiconductor quantum wells
Semiconductor quantum dots
quantum dots
quantum wells
Photoluminescence
2011
2 Citations (Scopus)

Dispersion of photoluminescence peak positions in asymmetric InAs QD multi quantum well structures

Casas Espínola, J. L., Torchynska, T. V., Polupan, G. & Martínez, M. O., 1 Apr 2011, In : Physica Status Solidi (C) Current Topics in Solid State Physics. p. 1388-1390 1248 p.

Research output: Contribution to journalArticleResearchpeer-review

quantum dots
quantum wells
photoluminescence
blue shift
red shift

Elastic stress and emission nonhomogeneity in asymmetric InAs quantum dot in a well structures

Casas Espínola, J. L., Torchynska, T. V., Palacios Gomez, J., Gómez Gasga, G., Vivas Hernández, A. & Cisneros Tamayo, R., 1 Apr 2011, In : Physica Status Solidi (C) Current Topics in Solid State Physics. p. 1391-1393 1251 p.

Research output: Contribution to journalArticleResearchpeer-review

inhomogeneity
quantum dots
photoluminescence
diffraction
x rays

Potential barrier study at the InGaAs/InAs quantum dot interface in asymmetric multi quantum well structures

Casas Espínola, J. L. & Polupan, G., 25 Oct 2011, p. 1364-1367. 1227 p.

Research output: Contribution to conferencePaperResearch

capping
Semiconductor quantum wells
Semiconductor quantum dots
Chemical analysis
electron
2010
1 Citation (Scopus)

Photoluminescence inhomogeneity and InAs QD laser structure parameters

Casas Espinola, J. L. & Polupan, G., 25 Oct 2010, p. 266-268. 239 p.

Research output: Contribution to conferencePaperResearch

Quantum dot lasers
inhomogeneity
Semiconductor quantum dots
Photoluminescence
laser
2009
5 Citations (Scopus)

Multiexcited state study in InAs DWELL structures

Casas-Espinola, J. L., Torchynska, T. V., Polupan, G. P. & Velazquez-Lozada, E., 25 Nov 2009, In : Materials Science and Engineering B: Solid-State Materials for Advanced Technology. p. 115-117 103 p.

Research output: Contribution to journalScientific reviewResearchpeer-review

Quantum Dots
Semiconductor quantum dots
Photoluminescence
quantum dots
photoluminescence
15 Citations (Scopus)
Semiconductor quantum dots
Photoluminescence
quantum dots
photoluminescence
well
2007
12 Citations (Scopus)

Carrier dynamics in InAs quantum dots embedded in InGaAs/GaAs multi quantum well structures

Espinola, J. L. C., Dybic, M., Ostapenko, S., Torchynska, T. V. & Polupan, G., 1 Apr 2007, p. 180-184. 161 p.

Research output: Contribution to conferenceArticleResearch

quenching
quantum dots
excitons
quantum wells
escape
5 Citations (Scopus)

Exciton thermal escape in symmetric InAs quantum dots in InGaAsZGaAs well structures

Espinola, J. L. C., Torchynska, T. V., Polupan, G. & Sierra, R. P., 1 Dec 2007, p. 379-381. 340 p.

Research output: Contribution to conferencePaperResearch

Quantum Dots
Hot Temperature
Luminescence
Genetic Recombination
Temperature
10 Citations (Scopus)

Localization of defects in InAs QD symmetric InGaAs/GaAs DWELL structures

Casas Espínola, J. L., Torchynska, T. V., Velasquez Lozada, E., Shcherbyna, L. V., Stintz, A. & Peña Sierra, R., 15 Dec 2007, In : Physica B: Condensed Matter. p. 584-586 525 p.

Research output: Contribution to journalArticleResearchpeer-review

Semiconductor quantum dots
defect
Photoluminescence
quantum dots
Semiconductor quantum wells
85 Citations (Scopus)

Thermal activation of excitons in asymmetric InAs dots-in-a-well In <inf>x</inf>Ga<inf>1-x</inf>As/GaAs structures

Torchynska, T. V., Casas Espinola, J. L., Borkovska, L. V., Ostapenko, S., Dybiec, M., Polupan, O., Korsunska, N. O., Stintz, A., Eliseev, P. G. & Malloy, K. J., 13 Mar 2007, In : Journal of Applied Physics.

Research output: Contribution to journalArticleResearchpeer-review

Excitons
Semiconductor quantum dots
Photoluminescence
Chemical activation
quantum dots
2006
27 Citations (Scopus)

Photoluminescence scanning on InAs/InGaAs quantum dot structures

Dybiec, M., Borkovska, L., Ostapenko, S., Torchynska, T. V., Casas Espinola, J. L., Stintz, A. & Malloy, K. J., 30 May 2006, In : Applied Surface Science. p. 5542-5545 4987 p.

Research output: Contribution to journalArticleResearchpeer-review

Semiconductor quantum dots
Photoluminescence
capping
quantum dots
Scanning
2005
2 Citations (Scopus)

Multiple excited state modification in InAs/InGaAs quantum dot structures at high excitation power

Torchynska, T. V., Alfaro Lopez, H. M., Casas Espinola, J. L., Eliseev, P. G., Stintz, A., Malloy, K. J., Pena Sierra, R. & Shcherbina, E., 1 Mar 2005, p. 186-189. 167 p.

Research output: Contribution to conferencePaperResearch

Excited states
Semiconductor quantum dots
pumping
energy
Optical transitions
2003
11 Citations (Scopus)

Localized excitons in InAs self-assembled quantum dots embedded in InGaAs/GaAs multi-quantum wells

Torchynska, T. V., Casas Espinola, J. L., Eliseev, P. G., Stintz, A., Mallooy, K. J. & Pena Sierra, R., 1 Jan 2003, p. 209-213. 187 p.

Research output: Contribution to conferencePaperResearch

Excitons
Semiconductor quantum wells
Semiconductor quantum dots
Ground state
well
34 Citations (Scopus)

Thermal ionisation of ground and multiply excited states in InAs quantum dots embedded into InGaAs/GaAs MQW

Torchynska, T. V., Casas Espinola, J. L., Velásquez Losada, E., Eliseev, P. G., Stintz, A., Malloy, K. J. & Pena Sierra, R., 10 Jun 2003, p. 848-851. 762 p.

Research output: Contribution to conferencePaperResearch

Excited states
Semiconductor quantum wells
Semiconductor quantum dots
Ionization
Photoluminescence

Thermal quenching of emission of self-assembled InAs quantum dots embedded into InGaAs/GaAs MQW

Torchynska, T. V., Casas Espinola, J. L., Lopez, H. M. A., Eliseev, P. G., Stintz, A., Malloy, K. J. & Pena Sierra, R., 1 Dec 2003, p. 69-71. 61 p.

Research output: Contribution to conferencePaperResearch

Excited states
Semiconductor quantum wells
Semiconductor quantum dots
Quenching
Optical transitions
1998

Preferred crystallite orientations depth profile in the two phase alloy Zn-22% wt Al, determined by X-ray and neutron diffraction

Palacios G., J., Casas E., J. L. & De Ita, A., 1 Jan 1998, In : Revista Mexicana de Fisica. p. 580-583 521 p.

Research output: Contribution to journalArticleResearchpeer-review

Neutron Diffraction
X-Ray Diffraction
neutron diffraction
textures
profiles
1996
1 Citation (Scopus)

Measurements of pole figures with a low cost interface

Palacios G, J., De la Torre, A. D. I. & Casas E, J. L., 1 Jan 1996, In : Revista Mexicana de Fisica. p. 136-144 121 p.

Research output: Contribution to journalArticleResearchpeer-review

Powders
goniometers
poles
Software
textures