Результаты исследований: Научные публикации в периодических изданиях › статья
Charge-controlled fixation of DNA molecules on silicon surface and electro-physical properties of Au–DNA–Si interface. / Bazlov, N.V.; Vyvenko, O.F.; Sokolov, P.A.; Kas'Yanenko, N.A.; Petrov, Y.V.
в: Applied Surface Science, Том 267, 2013, стр. 224-228.Результаты исследований: Научные публикации в периодических изданиях › статья
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TY - JOUR
T1 - Charge-controlled fixation of DNA molecules on silicon surface and electro-physical properties of Au–DNA–Si interface
AU - Bazlov, N.V.
AU - Vyvenko, O.F.
AU - Sokolov, P.A.
AU - Kas'Yanenko, N.A.
AU - Petrov, Y.V.
PY - 2013
Y1 - 2013
N2 - Light-induced fixation of DNA molecules on silicon surface was done and electro-physical properties of Schottky diodes with DNA on interfaces were investigated. Thymus DNA molecules were deposited on silicon from a water solution. Fixed molecular structures were observed with helium ionic microscopy and atomic force microscopy and then they were covered with thermal sputtered gold film. Obtained structures Au–DNA–(n-Si) were examined with current–voltage and frequency dependent admittance measurements. In darkness immobilizing of molecules leaded to form DNA ropes with thickness up to 10 nm and distances between them about 1 mkm. Fixation under illumination resulted in forming of single DNA mesh with thickness about 1 nm and cell size about 100 nm. Presence of molecular mesh on interface leaded to increasing of charge density controlled by metal Fermi level and improved diode quality. Presence of molecular ropes resulted in increasing of charge density controlled by semiconductor. From the estimation of inter
AB - Light-induced fixation of DNA molecules on silicon surface was done and electro-physical properties of Schottky diodes with DNA on interfaces were investigated. Thymus DNA molecules were deposited on silicon from a water solution. Fixed molecular structures were observed with helium ionic microscopy and atomic force microscopy and then they were covered with thermal sputtered gold film. Obtained structures Au–DNA–(n-Si) were examined with current–voltage and frequency dependent admittance measurements. In darkness immobilizing of molecules leaded to form DNA ropes with thickness up to 10 nm and distances between them about 1 mkm. Fixation under illumination resulted in forming of single DNA mesh with thickness about 1 nm and cell size about 100 nm. Presence of molecular mesh on interface leaded to increasing of charge density controlled by metal Fermi level and improved diode quality. Presence of molecular ropes resulted in increasing of charge density controlled by semiconductor. From the estimation of inter
U2 - 10.1016/j.apsusc.2012.11.002
DO - 10.1016/j.apsusc.2012.11.002
M3 - Article
VL - 267
SP - 224
EP - 228
JO - Applied Surface Science
JF - Applied Surface Science
SN - 0169-4332
ER -
ID: 7369019