Thin-layer electrochemical studies of the underpotential deposition of cadmium and tellurium on polycrystalline Au, Pt and Cu electrodes

Electrochemical atom-by-atom growth of highly uniform thin sheets of thermoelectric bismuth telluride via the route of ECALE

“…Moreover, deposition time dependent growth examination also showed that peak A1 and A2 were independent on the prolonged polarization time, indicating that their corresponding reductive deposition amounts of Te do not change with the deposition time, and verifying that they are the oxidative stripping peaks of Te UPD. The onset of bulk Te (at about À0.25 V) appears when the potential is scanned towards more negative values and its corresponding oxidative stripping peak A3 is at 0.43 V. Te UPD on Au was studied by several researchers before [17,55,56], the CV curve in this work is very similar to that reported by Flowers et al [17].…”

Electrodeposition of Semiconductors

“…Huang and co-workers [67] showed that thick films of CdTe (beyond 10 monolayers) can be deposited with this technique; however, they stated that film morphology suffers above 100 cycles. This technology relies on a thorough understanding of the fundamental mechanisms for the deposition of the constituent elements in atomic monolayers, and this was investigated by this group [68][69][70] and useful experimental data are provided in these references. This has also been investigated in detail for Te by Hayden and Nandhakumar [71], who investigated the structure of wellordered Te layers by scanning tunneling microscopy through the deposition cycle and for Cd by Niece and Gewirth [72].…”

Optimization of CdTe nanofilm formation by electrochemical atomic layer epitaxy (EC-ALE)

“…In the authors' group, the formation of CdTe thin films by EC-ALE has been well studied, using a variety of electrochemical cell configurations and geometries, as well as using a variety of cycle programs and solution chemistries [29,[36][37][38]. The quality of the deposits has improved dramatically from the first studies using a thin layer electrochemical cell (TLE) [39], to the present flow cell design [30].…”