title: Luminescence properties of silicon-cellulose nanocomposite.
abstract: We have characterized the structure and luminescence properties for two-component material composed of nanocrystalline cellulose and nanocrystalline (less to 100 nm) silicon powder. An efficient and stable photoluminescence of nanocomposite, resistant to the influence of gas-phase oxidants, has been found. The obtained material has electret-like properties and demonstrates the possibility of multiple-recharging in an electric field near 5·103 V/cm at temperatures ranging from -70°C to 100°C. The presence of the electric field, as well as ozone or low-temperature plasma treatment, does not change the luminescence spectrum due to quantum size properties of silicon nanoparticles. We believe that these particles may appear in two states: both embedded in a cellulose matrix and in the form of mechanical mixture.
authors: Department of Solid State Physics, Petrozavodsk State University, Petrozavodsk, 185640, Russia. pikulev@petrsu.ru.
authors: Vitaly
authors: V
authors: Pikulev
authors: Svetlana
authors: S
authors: Loginova
authors: Valery
authors: V
authors: Gurtov