Ingeniería Física en Colombia Applied Physics, Engineering & Innovation in Colombia

ISBN 978-958-52059-0-1

Autor:Sociedad Colombiana de Ingeniería Física
Perez Taborda, Jaime Andres
Avila Bernal, Alba Graciela
Editorial:Sociedad Colombiana de Ingeniería Física
Materia:Física aplicada
Público objetivo:Enseñanza universitaria o superior

Recognition as one of the 50 leaders among all graduates of his bachelor.

Dr. Perez-Taborda has been recognized as one of the 50 leaders among all graduates of the Technological University of Pereira (UTP) – Colombia. Dr. Perez-Taborda obtained his bachelor’s degree in physical engineering in 2011. More information about the note here:

El arte de la ciencia / Sociedad Colombiana de Ingeniería Física

Resultado de imagen para Prometeo 50 años utp + ingenieria fisica

Asociación de Egresados UTP

BREAKTHROUGH FOR BODY HEAT-POWERED TECHNOLOGIES

New thermoelectric material shows great potential for wearable devices, embedded to clothing and accessories, and other flexible technologies
One of the biggest challenges for the advancement of wearable devices, embedded to clothing and accessories, which would be capable, for example, of continuously measuring and transmitting vital sign data, is the availability of power without the need for large batteries.

Thermoelectric materials – in which a temperature difference between two points of the material creates an electric current or vice versa – make it possible to obtain the electrical energy used by the device from the temperature difference between the surface of the human body and the ambient air.

The efficiency of these materials is characterized by their figure of merit zTzT, which is directly proportional to the electrical conductivity and the absolute temperature of the material and inversely proportional to its thermal conductivity. Thus, obtaining new materials with high value for zTzT at room temperature and low thermal conductivity is a key element for the development of a new generation of wearable devices based on thermoelectric heat recovery.

Most of the materials of interest for the use of this thermoelectric effect are semiconductors, as is the case of Selenium-based materials. Thus, J.A. Perez-Taborda et al. [1] have developed a new thin film deposition technique, called pulsed hybrid reactive magnetron sputtering, in which it is possible to produce selenium-based films with high crystallinity and different compositions in a few minutes.

Using the technique, the group obtained [2] a new n-type Ag2SeAg2Se thin film that presented, at room temperature, superior performance to materials already used in commercial applications, in addition to being composed of more abundant chemical elements.

The high value of zT=1.2zT=1.2 for the obtained film is explained by the low thermal conductivity (0.64±0.1Wm1K1)(0.64±0.1Wm−1K−1) provided by its nanostructure . This breakthrough in the production of Ag2SeAg2Se thin films with high thermoelectric efficiency opens new possibilities for wearable devices, embedded to clothing and accessories, and other flexible technologies such as cell phones and portable computers.

The researchers used XRD2 X-ray diffraction beamline facilities from the Brazilian Synchrotron Light Laboratory (LNLS) to structurally characterize the thin films.

Sources:

[1] J. A. Perez-Taborla, L. Vera, O. Caballero-Calero, E. O. Lopez, J. J. Romero, D. G. Stoppa, F. Briones, M. Martin Gonzalez, Thermoelectric Films: Pulsed Hybrid Reactive Magnetron Sputtering for High zT Cu2Se Thermoelectric Films, Adv. Mater. Terchnol. 2017, 2, 1700012.

[2] J. A. Perez-Taborla, O. Caballero-Calero, L. Vera-Londono, F. Briones, M. Martin- Gonzalez, High Thermoelectric zT in n-Type Silver Selenide films at Room Temperature, Adv. Energy Mater. 2017,8, 1702024.

 

Breakthrough for body heat-powered technologies

Retos y perspectivas de la Ingeniería Física en Colombia

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Para el presidente de la Sociedad Colombiana de Ingeniería Física, Jaime Andrés Pérez Taborda; los desafíos en materia investigativa para el país se resumen en la implementación de tecnología avanzada, generar una cultura de ciencia e incentivar la inversión de recursos a los proyectos que genere la academia. Escuchar entrevista.

Press releases on the paper published in Advanced Energy Materials

 

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Jaime Andres Perez-Taborda, Olga Caballero-Calero, Liliana Vera-Londono, Fernando Briones, Marisol Martin-Gonzalez. High Thermoelectric zT in n-type Silver Selenide films at room temperature. Advanced Energy Materials. DOI: 10.1002/aenm.201702024

Un equipo del CSIC logra un método de fabricación de materiales termoeléctricos baratos, ligeros y resistentes. Esta técnica elabora compuestos de plata y selenio y podría aplicarse a la electrónica portátil personal.

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Bastará con llevar el dispositivo pegado a la pielCargar el reloj con el calor del propio cuerpo 

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BoletinEnero2018

Invitation BOOK: Coatings and Thin-Film Technologies

BOOK: Coatings and Thin-Film Technologies
ISBN: 978-953-51-6726-6
February 21, 2018
FULL CHAPTER (14-20 PAGES)
April 22, 2018
Review results: June 21, 2018
EXPECTED PUBLICATION DATE
September 2018

About the Book

COATINGS AND
THIN-FILM TECHNOLOGIES
The field of Coatings and Thin-Film Technologies is rapidly advancing to keep up with new applications in semiconductor, optical, tribological, decorative, thermoelectric, solar, security, smart sensing, food industry and bio-medical technologies among others. In this sense, thin film coatings and structures are increasingly sophisticated with more specific properties, new geometries, large areas, the use of heterogeneous materials and flexible and rigid substrates coating substrates to produce thin film structures with improved performance and properties in response to new challenges that the industry presents. In addition, parallel to the research in new materials, new deposition processes are being developed to improve the physical properties from technologies widely used by the industry such as High-power impulse magnetron sputtering (HiPIMS). This book aims to provide the reader with a complete overview of the current state of applications and developments of thin film technology, filed of applications, health and safety in thin films, presenting reviews and experimental results of recognized experts in the area of Coatings and Thin-Film Technologies.

Interview in Spanish

Retos y perspectivas de la Ingeniería Física en Colombia

Para el presidente de la Sociedad Colombiana de Ingeniería Física, Jaime Andrés Pérez Taborda; los desafíos en materia investigativa para el país se resumen en la implementación de tecnología avanzada, generar una cultura de ciencia e incentivar la inversión de recursos a los proyectos que genere la academia.

https://laud.udistrital.edu.co/content/retos-y-perspectivas-de-la-ingenier%C3%ADa-f%C3%ADsica-en-colombia

: LAUD 90.4 FM ESTÉREO Universidad Distrital Francisco José de Caldas

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