Investigations of the pore formation in the lead selenide films using glacial acetic acid- and nitric acid-based electrolyte
1 Microelectronics Department, Yaroslavl State University, Yaroslavl, 150000, Russia
2 Yaroslavl Branch of the Institute of Physics and Technology of Russian Academy of Sciences, Yaroslavl, 150007, Russia
Nanoscale Research Letters 2012, 7:338 doi:10.1186/1556-276X-7-338Published: 22 June 2012
We report a novel synthesis of porous PbSe layers on Si substrates by anodic electrochemical treatment of PbSe/CaF2/Si(111) epitaxial structures in an electrolyte solution based on glacial acetic acid and nitric acid. Electron microscopy, X-ray diffractometry, and local chemical microanalysis investigation results for the porous layers are presented. Average size of the synthesized mesopores with approximately 1010 cm−2 surface density was determined to be 22 nm. The observed phenomenon of the active selenium redeposition on the mesopore walls during anodic treatment is discussed.