Growth and characterization of HgI2, PbI2 and PbI2:HgI2 layered semiconductors

Authors :: Antônio Carlos Hernandes
Rodrigo Fernando Bianchi
M C C Custódio
Erika Regina Manoel
Francisco Eduardo Gontijo Guimarães
Source :: Materials Research, Vol 2, Iss 2, Pp 75-79 (1999), Materials Research, Volume: 2, Issue: 2, Pages: 75-79, Published: APR 1999, Materials Research v.2 n.2 1999, Materials research (São Carlos. Online), Universidade Federal de São Carlos (UFSCAR), instacron:ABM ABC ABPOL
Publication Year :: 1999
Publisher :: Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol), 1999.
Abstract: This paper presents a methodology for the preparation of a-HgI2 by Physical Vapor Transport and of PbI2 crystals using the Bridgman technique. The results of the growth of HgI2 diluted in PbI2 by the Bridgman technique are shown for the first time, its limit of solubility having been determined at 600 ppm of HgI2 in the PbI2 matrix. Optical absorption, photoluminescence and electrical conductivity measurements show that the crystals prepared are of good crystalline quality.

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