Conduction mechanisms in TlSbSe2 chalcogenides

Abstract TlSbSe2 samples used for electrical measurements were cleaved from larger crystals grown by using the Bridgman ‐ Stockbarger method. Electrical properties of the samples are investigated with a view of determining the dominant conduction mechanism. DC conduction studies reveal that Poole – Frenkel conduction is predominant. The DC conduction studies revealed the non‐ohmic type conduction. The activation energies are also calculated. It is seen that the activation energy decreases with increase of applied voltage. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)