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Hernández Simón ZJ, Luna López JA, de la Luz ADH, Pérez García SA, Benítez Lara A, García Salgado G, Carrillo López J, Mendoza Conde GO, Martínez Hernández HP. Spectroscopic Properties of Si-nc in SiO x Films Using HFCVD. NANOMATERIALS 2020; 10:nano10071415. [PMID: 32698419 PMCID: PMC7407559 DOI: 10.3390/nano10071415] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 06/25/2020] [Accepted: 06/28/2020] [Indexed: 01/11/2023]
Abstract
In the present work, non-stoichiometric silicon oxide films (SiOx) deposited using a hot filament chemical vapor deposition technique at short time and simple parameters of depositions are reported. This is motivated by the numerous potential applications of SiOx films in areas such as optoelectronics. SiOx films were characterized with different spectroscopic techniques. The deposited films have interesting characteristics such as the presence of silicon nanoclusters without applying thermal annealing, in addition to a strong photoluminescence after applying thermal annealing in the vicinity of 1.5 eV, which may be attributed to the presence of small, oxidized silicon grains (less than 2 nm) or silicon nanocrystals (Si-nc). An interesting correlation was found between oxygen content, the presence of hydrogen, and the formation of defects in the material, with parameters such as the band gap and the Urbach energies. This correlation is interesting in the development of band gap engineering for this material for applications in photonic devices.
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Affiliation(s)
- Zaira Jocelyn Hernández Simón
- Centro de Investigaciones en Dispositivos Semiconductores (CIDS-ICUAP), Benemérita Universidad Autónoma de Puebla (BUAP), Col. San Manuel, Cd. Universitaria, Av. San Claudio y 14 Sur, Edificios IC5 y IC6, Puebla 72570, Mexico; (Z.J.H.S.); (A.D.H.d.l.L.); (G.G.S.); (J.C.L.); (G.O.M.C.)
| | - Jose Alberto Luna López
- Centro de Investigaciones en Dispositivos Semiconductores (CIDS-ICUAP), Benemérita Universidad Autónoma de Puebla (BUAP), Col. San Manuel, Cd. Universitaria, Av. San Claudio y 14 Sur, Edificios IC5 y IC6, Puebla 72570, Mexico; (Z.J.H.S.); (A.D.H.d.l.L.); (G.G.S.); (J.C.L.); (G.O.M.C.)
- Correspondence: ; Tel.: +52-222-2295500
| | - Alvaro David Hernández de la Luz
- Centro de Investigaciones en Dispositivos Semiconductores (CIDS-ICUAP), Benemérita Universidad Autónoma de Puebla (BUAP), Col. San Manuel, Cd. Universitaria, Av. San Claudio y 14 Sur, Edificios IC5 y IC6, Puebla 72570, Mexico; (Z.J.H.S.); (A.D.H.d.l.L.); (G.G.S.); (J.C.L.); (G.O.M.C.)
| | - Sergio Alfonso Pérez García
- Centro de Investigación en Materiales Avanzados (CIMAV), Alianza Norte 202, Parque de Investigación e innovación Tecnológica Apodaca, Nuevo León 66600, Mexico;
| | - Alfredo Benítez Lara
- CONACYT-Centro de Investigaciones En Óptica AC (CIO), León, Guanajuato 36000, Mexico;
| | - Godofredo García Salgado
- Centro de Investigaciones en Dispositivos Semiconductores (CIDS-ICUAP), Benemérita Universidad Autónoma de Puebla (BUAP), Col. San Manuel, Cd. Universitaria, Av. San Claudio y 14 Sur, Edificios IC5 y IC6, Puebla 72570, Mexico; (Z.J.H.S.); (A.D.H.d.l.L.); (G.G.S.); (J.C.L.); (G.O.M.C.)
| | - Jesus Carrillo López
- Centro de Investigaciones en Dispositivos Semiconductores (CIDS-ICUAP), Benemérita Universidad Autónoma de Puebla (BUAP), Col. San Manuel, Cd. Universitaria, Av. San Claudio y 14 Sur, Edificios IC5 y IC6, Puebla 72570, Mexico; (Z.J.H.S.); (A.D.H.d.l.L.); (G.G.S.); (J.C.L.); (G.O.M.C.)
| | - Gabriel Omar Mendoza Conde
- Centro de Investigaciones en Dispositivos Semiconductores (CIDS-ICUAP), Benemérita Universidad Autónoma de Puebla (BUAP), Col. San Manuel, Cd. Universitaria, Av. San Claudio y 14 Sur, Edificios IC5 y IC6, Puebla 72570, Mexico; (Z.J.H.S.); (A.D.H.d.l.L.); (G.G.S.); (J.C.L.); (G.O.M.C.)
| | - Hayde Patricia Martínez Hernández
- Departamento de Ingeniería Eléctrica y Electrónica, Instituto Tecnológico de Apizaco (ITA), Fco I Madero s/n, Barrio de San José, Apizaco, Tlaxcala 90300, Mexico;
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Gawande MB, Goswami A, Asefa T, Guo H, Biradar AV, Peng DL, Zboril R, Varma RS. Core-shell nanoparticles: synthesis and applications in catalysis and electrocatalysis. Chem Soc Rev 2016; 44:7540-90. [PMID: 26288197 DOI: 10.1039/c5cs00343a] [Citation(s) in RCA: 459] [Impact Index Per Article: 57.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Core-shell nanoparticles (CSNs) are a class of nanostructured materials that have recently received increased attention owing to their interesting properties and broad range of applications in catalysis, biology, materials chemistry and sensors. By rationally tuning the cores as well as the shells of such materials, a range of core-shell nanoparticles can be produced with tailorable properties that can play important roles in various catalytic processes and offer sustainable solutions to current energy problems. Various synthetic methods for preparing different classes of CSNs, including the Stöber method, solvothermal method, one-pot synthetic method involving surfactants, etc., are briefly mentioned here. The roles of various classes of CSNs are exemplified for both catalytic and electrocatalytic applications, including oxidation, reduction, coupling reactions, etc.
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Affiliation(s)
- Manoj B Gawande
- Regional Centre of Advanced Technologies and Materials, Faculty of Science, Department of Physical Chemistry, Palacky University, Šlechtitelů 11, 783 71, Olomouc, Czech Republic.
| | - Anandarup Goswami
- Regional Centre of Advanced Technologies and Materials, Faculty of Science, Department of Physical Chemistry, Palacky University, Šlechtitelů 11, 783 71, Olomouc, Czech Republic. and Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 610 Taylor Road, Piscataway, New Jersey 08854, USA
| | - Tewodros Asefa
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 610 Taylor Road, Piscataway, New Jersey 08854, USA and Department of Chemical and Biochemical Engineering, Rutgers, The State University of New Jersey, 98 Brett Road, Piscataway, New Jersey 08854, USA
| | - Huizhang Guo
- Department of Materials Science and Engineering, College of Materials, Xiamen University, Xiamen 361005, People's Republic of China
| | - Ankush V Biradar
- Catalysis Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
| | - Dong-Liang Peng
- Department of Materials Science and Engineering, College of Materials, Xiamen University, Xiamen 361005, People's Republic of China
| | - Radek Zboril
- Regional Centre of Advanced Technologies and Materials, Faculty of Science, Department of Physical Chemistry, Palacky University, Šlechtitelů 11, 783 71, Olomouc, Czech Republic.
| | - Rajender S Varma
- Sustainable Technology Division, National Risk Management Research Laboratory, US Environmental Protection Agency, 26 West Martin Luther King Drive, MS 443, Cincinnati, Ohio 45268, USA.
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Ding Y, Jin B, Gu G, Xia XH. One-step pyrolysis method for the synthesis of highly efficient 3D hollow carbon nanostructure supported metallic catalysts. ACTA ACUST UNITED AC 2009. [DOI: 10.1039/b913767j] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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