Enhanced electrical properties of antimony doped tin oxide thin films deposited via aerosol assisted chemical vapour deposition

Abstract

A scalable CVD route to SnO2 : Sb thin films that show resistivity as low as 4.7 × 10−4 Ω cm and a corresponding sheet resistance of 9 Ω sq−1. Theoritical insight into the defect chemistry is provided by ab initio hybrid density functional theory.

Phosphorus doped SnO2 thin films for transparent conducting oxide applications: synthesis, optoelectronic properties and computational models

“…Extended X-ray absorption fine structure (EXAFS) experiments on Sb-doped SnO 2 have proposed the clustering of substitutional Sb with oxygen vacancies, which has also been corroborated through theoretical calculations. 121 , 124 A similar analysis can be carried out in P-doped SnO 2 by assessing the viability of such a cluster by calculating [Sb Sn + V O ] in both a ‘near’ (neighbouring each other) and ‘far’ (∼8 Å apart) configuration. From our calculations, we find that the ‘near’ configuration is more favourable than the ‘far’ configuration by ∼0.14 eV.…”

Ultrasonic Spray Pyrolysis of Antimony‐Doped Tin Oxide Transparent Conductive Coatings

“…This has previously been ascribed to the presence of some Sb 3+ species, and to the filling of an impurity band which has a metallike behavior and an optical absorption close to 1.5 eV. [40,41,25] From the optical absorption spectra we can also estimate the band gap of the coatings. The Tauc plots for the ATO samples deposited at 400 and 440 °C are reported in Figure S10, Supporting Information.…”

“…This effect has been observed in previous studies conducted on ATO films, and it has been ascribed to a combination of the increased amount of Sb (III) over Sb (V) which act as electron acceptors, and of the increased activation energy of the donors. [24,25] Since the mobility continues to decline, there is a sharp increase in electrical resistance at these higher doping levels, especially in the ATO coatings deposited at low temperatures.…”

“…Antimony-doped tin oxide (ATO) films have also demonstrated high optoelectronic performance, validating the use of antimony as a dopant. [15,[23][24][25] Moreover, the fabrication of ATO avoids the use of fluorine precursors, that can release HF as a by-product especially when aqueous-based methods are used. [26,27] Previous studies of ATO coatings deposited by ultrasonic spray pyrolysis have individually and unsystematically explored the structural, electrical, and optical properties of the deposited films by altering some of the key parameters including dopant concentration, film thickness, and processing temperature.…”

SnO2 as Advanced Anode of Alkali‐Ion Batteries: Inhibiting Sn Coarsening by Crafting Robust Physical Barriers, Void Boundaries, and Heterophase Interfaces for Superior Electrochemical Reaction Reversibility

“…The second issue is the poor intrinsic electrical conductivity of SnO 2 , demonstrating a resistivity of 10 −2 to 10 −3 Ω cm at room temperature, which leads to a low electron transfer rate and slow reaction kinetics . Compositing SnO 2 with highly conductive materials (e.g., carbonaceous materials, conductive polymers, metals, etc.)…”