Optical and structural characterization of oleic acid-stabilized CdTe nanocrystals for solution thin film processing
This work presents results of the optical and structural characterization of oleic acid-stabilized cadmium telluride nanocrystals (CdTe-NC) synthesized by an organometallic route. After being cleaned, the CdTe-NC were dispersed in toluene to obtain an inklike dispersion, which was drop-cast on glas...
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| Format: | Article |
| Language: | English |
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Beilstein-Institut zur Förderung der Chemischen Wissenschaften
2014
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| Online Access: | http://eprints.uanl.mx/15227/1/324.pdf |
| _version_ | 1824414291073171456 |
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| author | Gutiérrez Lazos, Claudio Davet Ortega López, Mauricio Pérez Guzmán, Manuel A. Espinoza Rivas, A. Mauricio Solís Pomar, Francisco Ortega Amaya, Rebeca Silva Vidaurri, Luis Gerardo Castro Peña, Virginia Carolina Pérez Tijerina, Eduardo |
| author_facet | Gutiérrez Lazos, Claudio Davet Ortega López, Mauricio Pérez Guzmán, Manuel A. Espinoza Rivas, A. Mauricio Solís Pomar, Francisco Ortega Amaya, Rebeca Silva Vidaurri, Luis Gerardo Castro Peña, Virginia Carolina Pérez Tijerina, Eduardo |
| author_sort | Gutiérrez Lazos, Claudio Davet |
| collection | Repositorio Institucional |
| description | This work presents results of the optical and structural characterization of oleic acid-stabilized cadmium telluride nanocrystals (CdTe-NC) synthesized by an organometallic route. After being cleaned, the CdTe-NC were dispersed in toluene to obtain an inklike
dispersion, which was drop-cast on glass substrate to deposit a thin film. The CdTe-NC colloidal dispersion as well as the CdTe drop-cast thin films were characterized with regard to the optical and structural properties. TEM analysis indicates that the CdTeNC have a nearly spherical shape (3.5 nm as mean size). Electron diffraction and XRD diffraction analyses indicated the bulk-CdTe face-centered cubic structure for CdTe-NC. An additional diffraction line corresponding to the octahedral Cd3P2 was also detected as a secondary phase, which probably originates by reacting free cadmium ions with trioctylphosphine (the tellurium reducing agent). The Raman spectrum exhibits two broad bands centered at 141.6 and 162.3 cm−1, which could be associated to the TO and LO modes of cubic CdTe nanocrystals, respectively. Additional peaks located in the 222 to 324 cm−1 range, agree fairly well with the wavenumbers reported for TO modes of octahedral Cd3P2. |
| format | Article |
| id | eprints-15227 |
| institution | UANL |
| language | English |
| publishDate | 2014 |
| publisher | Beilstein-Institut zur Förderung der Chemischen Wissenschaften |
| record_format | eprints |
| spelling | eprints-152272020-06-10T20:04:14Z http://eprints.uanl.mx/15227/ Optical and structural characterization of oleic acid-stabilized CdTe nanocrystals for solution thin film processing Gutiérrez Lazos, Claudio Davet Ortega López, Mauricio Pérez Guzmán, Manuel A. Espinoza Rivas, A. Mauricio Solís Pomar, Francisco Ortega Amaya, Rebeca Silva Vidaurri, Luis Gerardo Castro Peña, Virginia Carolina Pérez Tijerina, Eduardo T Tecnología en General This work presents results of the optical and structural characterization of oleic acid-stabilized cadmium telluride nanocrystals (CdTe-NC) synthesized by an organometallic route. After being cleaned, the CdTe-NC were dispersed in toluene to obtain an inklike dispersion, which was drop-cast on glass substrate to deposit a thin film. The CdTe-NC colloidal dispersion as well as the CdTe drop-cast thin films were characterized with regard to the optical and structural properties. TEM analysis indicates that the CdTeNC have a nearly spherical shape (3.5 nm as mean size). Electron diffraction and XRD diffraction analyses indicated the bulk-CdTe face-centered cubic structure for CdTe-NC. An additional diffraction line corresponding to the octahedral Cd3P2 was also detected as a secondary phase, which probably originates by reacting free cadmium ions with trioctylphosphine (the tellurium reducing agent). The Raman spectrum exhibits two broad bands centered at 141.6 and 162.3 cm−1, which could be associated to the TO and LO modes of cubic CdTe nanocrystals, respectively. Additional peaks located in the 222 to 324 cm−1 range, agree fairly well with the wavenumbers reported for TO modes of octahedral Cd3P2. Beilstein-Institut zur Förderung der Chemischen Wissenschaften 2014 Article PeerReviewed text en cc_by_nc_nd http://eprints.uanl.mx/15227/1/324.pdf http://eprints.uanl.mx/15227/1.haspreviewThumbnailVersion/324.pdf Gutiérrez Lazos, Claudio Davet y Ortega López, Mauricio y Pérez Guzmán, Manuel A. y Espinoza Rivas, A. Mauricio y Solís Pomar, Francisco y Ortega Amaya, Rebeca y Silva Vidaurri, Luis Gerardo y Castro Peña, Virginia Carolina y Pérez Tijerina, Eduardo (2014) Optical and structural characterization of oleic acid-stabilized CdTe nanocrystals for solution thin film processing. Beilstein journal of nanotechnology, 5. pp. 881-886. ISSN 2190-4286 http://doi.org/10.3762/bjnano.5.100 doi:10.3762/bjnano.5.100 |
| spellingShingle | T Tecnología en General Gutiérrez Lazos, Claudio Davet Ortega López, Mauricio Pérez Guzmán, Manuel A. Espinoza Rivas, A. Mauricio Solís Pomar, Francisco Ortega Amaya, Rebeca Silva Vidaurri, Luis Gerardo Castro Peña, Virginia Carolina Pérez Tijerina, Eduardo Optical and structural characterization of oleic acid-stabilized CdTe nanocrystals for solution thin film processing |
| thumbnail | https://rediab.uanl.mx/themes/sandal5/images/online.png |
| title | Optical and structural characterization of oleic acid-stabilized CdTe nanocrystals for solution thin film processing |
| title_full | Optical and structural characterization of oleic acid-stabilized CdTe nanocrystals for solution thin film processing |
| title_fullStr | Optical and structural characterization of oleic acid-stabilized CdTe nanocrystals for solution thin film processing |
| title_full_unstemmed | Optical and structural characterization of oleic acid-stabilized CdTe nanocrystals for solution thin film processing |
| title_short | Optical and structural characterization of oleic acid-stabilized CdTe nanocrystals for solution thin film processing |
| title_sort | optical and structural characterization of oleic acid stabilized cdte nanocrystals for solution thin film processing |
| topic | T Tecnología en General |
| url | http://eprints.uanl.mx/15227/1/324.pdf |
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