Observatorio de I+D+i UPM

Memorias de investigación
Book chapters:
Impact of V-implantation and Si-Vacancies on Crystal Structure and Optical Absorption Properties of Silicon
Research Areas
  • Engineering
Infrared photodetectors have applications in areas such as civil security and surveillance, environmental monitoring and telecommunications.1,2 Nowadays, commonly used infrared photodetection devices are based in mercury cadmium telluride3 or quantum-dot infrared photodetectors.4 However, while these materials allow high performances, they suffer some drawbacks, e.g.: high production costs and hardly integration in CMOS (chip complementary metal-oxide semiconductor) technology. Silicon based devices guarantee the low cost and CMOS compatibility criteria. The band gap of silicon is 1.12 eV (1,100 nm), which hiders its applications in the infrared region.5 Hence, the extent of absorption properties of silicon up to the infrared region would be a promising approach to design new Si-based infrared photodetectors. It has been proven that the incorporation of a dopant element creates a partially filled level that allows sub-bandgap absorption.5,6,7,8,9 In this sense, photodiodes based on S-hyperdoped5,9 and Se-yperdoped6,10,11 silicon yield improved spectral response up to the infrared region.
Book Edition
Book Publishing
Real Sociedad Española de Física
Book title
Current Trends in Energy and Sustainability
From page
To page
  • Autor: Gregorio Jose Garcia Moreno (UPM)
  • Autor: M. Casanova-Páez
  • Autor: Pablo Palacios Clemente (UPM)
  • Autor: E. Menéndez-Proupin
  • Autor: Perla Wahnon Benarroch (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Silicio y Nuevos Conceptos para Células Solares
  • Centro o Instituto I+D+i: Instituto de Energía Solar
  • Departamento: Física Aplicada a Las Ingenierías Aeronáutica y Naval
  • Departamento: Tecnología Fotónica y Bioingeniería
S2i 2021 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)