Synthesis of photo-responsive indium selenides (InSe and In₂Se₃) from tris(4,6-dimethyl-2-pyrimidylselenolato)indium(iii) as a molecular precursor

Abstract

Indium selenides (InSe and In2Se3) has garnered enormous interest owing to its favourable carrier mobility and high photoresponsivities, exhibiting great application potential in high performance photovoltaic and optoelectronic devices. Selective...

Molecular precursor-mediated facile synthesis of photo-responsive stibnite Sb2S3 nanorods and tetrahedrite Cu12Sb4S13 nanocrystals

“…It is important to note here that there are several reports in the literature, wherein despite the mismatch between the calculated and observed weight loss in TG, the complex serves as an efficient precursor for the synthesis of nanostructures by either solventless or solvent mediated routes. 26,32,36,44…”

“…In contrast, a molecular precursor, which comprises a preformed bond between the desired elements of materials, offers several distinct advantages in terms of simplicity, lower defect concentration and the ability to produce nanomaterials under milder conditions with better control over their stoichiometries and good reproducibility. 25,26 In addition, molecular precursors are equally suitable for the preparation of nanomaterials and deposition of thin films. 27 Revaprasadu and co-workers have successfully used thio-benzoates and seleno-benzoates for the preparation of Sb 2 S 3 , Sb 2 Se 3 and Sb 2 (S 1−x Se x ) 3 solid solutions for electrocatalytic energy conversion and storage.…”

“…Previously, our group has successfully used hemilabile internally functionalized chalcogenolate ligand derived metal complexes for the facile synthesis of binary and ternary metal chalcogenide nanostructures and thin films which have been evaluated for their photo-responsive behaviour and energy storage applications. 26,35,36 The internally functionalized ligand especially pyridyl/pyrimidyl chalcogenolates provides stability to the precursor towards an oxidizing environment. 37,38 To expand the horizon of molecular precursors for binary antimony sulfide and ternary copper antimony sulfide, in this article we present the synthesis and characterization including structure elucidation of an air-stable antimony (III)-4,6-dimethylpyrimidylthiolate complex.…”

Facile one pot synthesis of highly photoresponsive coinage metal selenides (Cu1.8Se and Ag2Se) achieved through novel Cu and Ag pyridylselenolates as molecular precursors

“…They include the decomposition of [Ag{SeC 4 H(Me-4,6) 2 N 2 }] 6 • 6MeOH•H 2 O to prepare Ag 2 Se as reported by Sharma et al 25 and the utilization of [Ag 4 (TFA) 4 ( t Bu 2 S) 4 ] for synthesizing the Ag 2 S material by Gahlot et al 29 Previously, we have extensively utilized metal complexes with internally functionalized hemilabile chalcogenolate ligands to afford high quality nanocrystals and thin films which have been evaluated for their photo-responsive behaviour and energy storage applications. [30][31][32] Extending our quest to molecular precursors for coinage metal chalcogenides, in this article, we present the synthesis and characterization of novel air stable copper and silver complexes with 5-methyl-2pyridylselenolate and 4,6-dimethyl-2-pyridylselenolate ligands. The utility of these complexes as suitable SSPs for the preparation of highly photo-responsive phase pure copper and silver selenide materials has been successfully demonstrated by low temperature thermolysis of the same.…”

Synthesis of photoresponsive and photoemissive ultrathin 2D nanosheets of In2S3 achieved through a new single source molecular precursor

“…In addition, producing high quality indium sulfide NSs is often limited by the inherent drawbacks of conventional synthetic procedures such as hydrothermal, template, microwave, and solvothermal approaches using multiple precursors. 18 Single source molecular precursor (SSP) route is an alternative low-cost pathway to achieve these materials, which often proves to be advantageous because it provides better control over the stoichiometry and leads to materials with better phase purity and lower defect concentration. 19 Conventional SSPs for indium sulfide materials include indium thiolates, thiocarboxylates, dithiocarbamates, dithioimidodiphosphinates, and dithiobiurets.…”