Deposition of Bismuth Chalcogenide Thin Films Using Novel Single-Source Precursors by Metal-Organic Chemical Vapor Deposition

Abstract

The metal-organic compounds, Bi[(EPR 2 ) 2 N] 3 (E ) S, Se; R ) Ph, i Pr), have been synthesized and used as single-source precursors for the deposition of bismuth chalcogenide thin films via low-pressure and aerosol-assisted metal-organic chemical vapor deposition. Crystalline thin films of rhombohedral Bi 2 Se 3 (using Bi[(SeP i Pr 2 ) 2 N] 3 ), hexagonal BiSe (using Bi[(SePPh 2 ) 2 N] 3 ), and orthorhombic Bi 2 S 3 (using Bi[(SPR 2 ) 2 N] 3 ) have been deposited on glass substrates. Films have been characterized by X-ray powder diffraction, scanning electron microscopy, and energy-dispersive analysis of X-rays.

Alkali Metal and Alkaline Earth Metal Complexes with the Bis(borane‐diphenylphosphanyl)amido Ligand – Synthesis, Structures, and Catalysis for Ring‐Opening Polymerization of ϵ‐Caprolactone

“…[11,12] The di-chalcogenoimido-diphosphinto bismuth compounds, Bi[(EPR 2 ) 2 N] 3 (E = S, Se; R = Ph, iPr), were found to be ideal www.zaac.wiley-vch.de ARTICLE for use as single-source precursors as they are air-stable and readily obtainable in good synthetic yields. [13] The diselenoimido-diphosphinato ligand can also stabilize a wide range of metal coordination spheres including alkali metals, [14][15] group 12, [16] group 13, [17,18] group 14, [19,20,16] group 15, [21] group 16, [22,23] transition metals (V and Cr, [24] Mn [25,26] and Re, [27] Ru, Rh, Ir, [15,28,29] Os, [30] Co, [31] group 10: Ni, [32] Pd, [32,[33][34][35] Pt, [14,30,34] and group 11: [35] , and rare earth metals. [36,37] This could be due to the flexible nature of the ligand moieties, which adopt to several metallacyclic rings depending upon the coordination to the central metal atom.…”

Electrodeposition and characterization of thermoelectric Bi2Se3 thin films

“…Bi 2 Se 3 is one of the important group V-VI binary compounds. Bi 2 Se 3 films have been prepared by various methods such as electrodeposition [3][4], chemical deposition [5][6][7][8], solvo thermalization [9], successive ionic layer adsorption and reaction [10], thermal evaporation [11], electroless solution growth process [12], reactive evaporation [13], compound evaporation [14], chemical vapor deposition (CVD) [15], and metal organic CVD (MOCVD) [16]. Among these methods, electrodeposition is a simple and inexpensive one for the preparation of thin films.…”

Experimental and Theoretical Investigations of the Contact Ion Pairs Formed by Reactions of the Anions [(EPR2)2N]− (R = iPr, tBu; E = S, Se) with the Cations [(TePR2)2N]+ (R = iPr, tBu)

“…The primary focus has been the coordination chemistry of these bidentate ligands, and several reviews that provide details of the complexes of 1 with a diverse array of main group, lanthanide and transition metals have been published. [3][4][5] A significant recent application of these complexes, particularly in the case of the selenium derivative (1, E = Se, R = i Pr), has been as single-source precursors for the generation of metal selenides in the form of semiconducting thin films [6][7][8][9][10][11][12][13][14][15][16][17] or quantum dots 18 via CVD or solvothermal processes.…”