Study of solvent effect on structural and photoconductive behavior of ternary chalcogenides InBiS3-In2S3-Bi2S3 composite thin films deposited via AACVD

Abstract

In the present work ternary composite InBiS3-In2S3-Bi2S3 (IBS) thin films are developed using a homogeneous mixture of precursors [Bi(S2CN(C2H5)2)3]2 (1) and [In(S2CNCy2)3]‧2py (2), separately in toluene and chloroform solutions at 500°C under an inert atmosphere of argon gas via aerosol assisted chemical vapor deposition (AACVD) technique. The phase purity, chemical composition and morphological study of both the films deposited from toluene and chloroform solutions are characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Raman spectroscopy and Field emission scanning electron microscopy (FESEM). The surface morphology showed rod like structure of the films developed from toluene while the films grown from chloroform solution give flake like shapes. The UV-visible spectroscopy explicated that the thin films developed from toluene and chloroform solutions show wide range absorption in whole visible region. Linear Scan voltammetry results show that both the films give negligible dark current, however, the films fabricated from toluene solution give a sharp steep curve with maximum photocurrent density of 2.3 mA‧cm-2 at 0.75 V vs Ag/AgCl/3M KCl using 0.05 M sodium sulphide solution under AM 1.5 G illumination (100 mW‧cm-2), while the film grown from chloroform generates a photocurrent density of 2.1 mA‧cm-2 under similar conditions. The LSV outcomes are further supported by electrochemical impedance spectroscopy (EIS) that gives charge transfer resistance (Rct) value of 8,571 Ω for the films developed from toluene as compared to films fabricated from chloroform with Rct value of 12,476 Ω.

Printed Chemiresistive In2O3 Nanoparticle-Based Sensors with ppb Detection of H2S Gas for Food Packaging

“…The diffraction peaks at 2θ = 12.82° (Figure S3B) and 26.56° (Figure S3C) correspond to CuAc and Gt flakes, respectively. Typically, In 2 S 3 has diffraction peaks at 2θ ≈ 25.2, 27.4, 28.8, 34.1, 51.5, and 59.2° corresponding to the (300), (311), (222), (410), (610), and (444) planes, respectively. Moreover, CuS has diffraction peaks at 2θ ≈ 27.6, 29.3, 31.7, 32.7, 47.9, 52.7, 59.3, and 73.8° corresponding to the (101), (102), (103), (006), (110), (108), (116), and (208) planes, respectively.…”

String ball-like SnS2/ZnTe heterostructures with improved bifunctional photo/electrocatalytic activity towards overall water splitting

“…11 Among these materials, copper oxides (Cu 2 O and CuO), Cr 2 O 3 -Mn 2 O 3 , Y 2 CuO 4 -5CuO, and InBiS 3 -In 2 S 3 -Bi 2 S 3 have emerged as promising candidates owing to their non-toxic nature, affordability, and appropriate bandgap properties. [12][13][14] However, their performance as photocathodes in PEC water splitting is hampered by two key challenges: the gradual degradation of their photostability over time in the electrolyte and their constrained photocurrent generation capability. 10,15,16 SnS 2 possesses a crystal structure akin to that of CdI 2 , characterized by densely packed atomic layers of tin sandwiched between two layers of sulfur.…”

Synthesis, characterization and properties of indium-doped manganese oxide molecular sieve sponges

“…Oxides/sulfides doped with heteroatoms can be widely utilized. [23][24][25][26][27] Indium-doping may offer manganese oxide molecular sieve materials with better semiconducting and electrocatalysis properties. 28 At present, research on indium-doped manganese oxide molecular sieve materials is still at the level of macroscopic zero dimension (i.e.…”