| Title |
Dujoms jautrių hibridinių darinių ir nanosistemų integruotų metalo oksido plėvelėse kūrimas ir tyrimai Skenuojančio zondo mikroskopijos metodais / |
| Translation of Title |
Application of scanning probe microscopy for development and investigation of gas sensitive nanosystems and hybrid structures integrated with the ultra-thin metal oxide. |
| Authors |
Bukauskas, Virginijus |
| Full Text |
|
| Pages |
143 |
| Keywords [eng] |
Scanning probe microscopy ; tin oxide ; nanosystems ; hybrid structures ; ultra-thin films. |
| Abstract [eng] |
Modification of the properties of solid state structures, used for gas sensing is important task in making detection and measurement systems of volatile chemical compounds. These properties depend on material, inner structure and interaction with gas atmosphere. In hybrid materials (solid-biomolecular) biochemical recognition plays important role in gas sensing mechanism. In this work the methodologies of the SPM was applied for characterization of the local point and local area properties in the gas sensitive MO films with the nanoscaled thickness that can be used for nanosystems and hybrid materials in novel types of chemical detectors. In this dissertation morphology and physical properties of metal oxide films with thickness from a few to about 50 nm was investigated and described a relationship between the gas response and film thickness. It was experimentally shown that effects of external influence on the properties of the surface nanostructures can be described by the specific characteristics of the scanning probe spectroscopy displaying the dependences of the probe contact electric current on both the probe potential and the probe pressing force. An original method based on the SPM probe controlled electrical current was proposed for the formation of nanosystems with various electrical properties on the surfaces of thin MO films. |
| Type |
Doctoral thesis |
| Language |
Lithuanian |
| Publication date |
2010 |
