Study of phoconductive and electrical properties of AgInS 2 thin films prepared by co-evaporation

C. A. Arredondo, F. Mesa, E. Romero, G. Gordillo

Resultado de la investigación: Capítulo en Libro/Reporte/ConferenciaContribución a la conferencia

Resumen

AgInS 2 (AIS) thin films with chalcopyrite type tetragonal structure were grown using a procedure based on the co-evaporation of their precursors in a two stage process. The effect of the evaporated mass of Ag to evaporated mass of In (m Ag/m In) ratio on the electrical transport properties was investigated through temperature dependent conductivity and Hall voltage measurements carried out in the range between 90K and 600K. The study revealed that the electrical conductivity of the AIS films is affected by hole transport in extended states of the valence band as well as by variable range hopping (VRH) transport mechanism. Transient photocurrent measurements, indicated that the electrical transport is affected by recombination processes via band to band transitions and trap assisted transitions, being the band to band recombination de dominant one. It was also found that the AgInS 2 thin films present p-type conductivity, a high absorption coefficient (greater than 10 4 cm -1) and an energy band gap E g of about 1.94 eV, indicating that this compound has good properties to perform as absorbent layer on the top cell in two junction tandem solar cells.

Idioma originalInglés estadounidense
Título de la publicación alojadaProgram - 37th IEEE Photovoltaic Specialists Conference, PVSC 2011
Páginas320-325
Número de páginas6
DOI
EstadoPublicada - 2011
Publicado de forma externa
Evento37th IEEE Photovoltaic Specialists Conference, PVSC 2011 - Seattle, WA, Estados Unidos
Duración: jun. 19 2011jun. 24 2011

Serie de la publicación

NombreConference Record of the IEEE Photovoltaic Specialists Conference
ISSN (versión impresa)0160-8371

Conferencia

Conferencia37th IEEE Photovoltaic Specialists Conference, PVSC 2011
País/TerritorioEstados Unidos
CiudadSeattle, WA
Período6/19/116/24/11

Áreas temáticas de ASJC Scopus

  • Ingeniería de control y sistemas
  • Ingeniería industrial y de fabricación
  • Ingeniería eléctrica y electrónica

Huella

Profundice en los temas de investigación de 'Study of phoconductive and electrical properties of AgInS 2 thin films prepared by co-evaporation'. En conjunto forman una huella única.

Citar esto