Naslov
Electrodeposition of Thin Sulfide Films: Nucleation and Growth Observed for Bi_2S_3

Autori
Grubač, Zoran ; Metikoš-Huković, Mirjana

Izvornik
Thin Solid Films (0040-6090) 413 (2002), 1-2; 248-256

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
nucleation; bismuth; sulfide films; chronoamperometry; cyclic voltammetry

Sažetak
The potentiostatic pulse technique proved to be the most powerful electrochemical technique for in situ studies of the early stages of Bi_2S_3 electrodeposition on bismuth.The current-time response recorded at the overpotentials in the vicinity of Er (Bi_2S_3/Bi) in dependence of hydrosulfide ion concentrations, was described by a theoretical expression for 3D progressive nucleation and growth under diffusion control. Through the application of relations which hold true for such a nucleation model, the following parameters were determined: (i) the anodic nucleation potential (E_A_N), (ii) the rate of nucleation (A_N_0), (iii) the diffusion coefficient (D) and (iv) the density of the growing sites (N_s).

Izvorni jezik
Engleski

Znanstvena područja
Kemija, Kemijsko inženjerstvo

POVEZANOST RADA