Facile synthesis and size-dependent optical properties of luminescent ZnIn₂S₄ nanocrystals derived from metal xanthates

Abstract

ZnIn2S4 (ZIS), a ternary semiconductor having photo-absorption in visible region of solar spectrum is a promising active material for catalysis, optoelectronics and photoconductors and exists in various morphologies. Synthesis of...

Molecular precursor approach to develop catalytically relevant nanosized metals, palladium chalcogenides and ternary/quaternary metal chalcogenides

“…Hexagonal phase ZnIn 2 S 4 (ZIS) spherical nanocrystals (NCs) of size ranging from 2.9 to 8.5 nm have been prepared by co-thermolysis of xanthate precursors, [In(S 2 CO i Pr) 3 ] ( 98 ) and [Zn(S 2 CO i Pr) 2 ] ( 99 ), in OAm at 280 °C for different time durations (10, 15 and 20 mins). 3 Moreover, the size dependent optical properties of luminescent ZIS NCs with quantum yields in the range of 7–11% have been investigated. Lifetime measurements of these NCs exhibit lifetimes in the range of 1.3–1.5 ns and 5.7–7.3 ns for the fast- and slow-decaying components, respectively.…”

“…In the past few decades, it has made inroads into yet another dimension of immense relevance, i.e., nanoscience and nanotechnology. Consequently, a wide range of methods for the synthesis of inorganic nanomaterials have been developed over the years which have various potential applications such as catalysis, 2 opto-electronics, 3 thermoelectrics, 4 bio-medical applications, 2 etc. Nanomaterial synthesis methods include physical (top-down or fabrication approach), chemical (bottom-up or synthesis strategy) and hybrid methods.…”

Inorganic Chemistry at the Crossroads of Catalysis and Materials Science

“…ZnIn2S4 is a layered semiconductor occurring in three crystal polymorphs viz., cubic, hexagonal and rhombohedral lattices. Hexagonal phase ZnIn2S4 (ZIS) spherical nanocrystals (NCs) of size ranging from 2.9 to 8.5 nm have been prepared by co-thermolysis of xanthate precursors, [In(S2COPr i )3] and [Zn(S2COPr i )2] in OAm at 280°C at different time (10, 15 and 20 mins) [84]. Moreover, the size dependent optical properties of luminescent ZIS NCs with quantum yields in the range of 7-11% have been investigated.…”