Отримано композитний фотокаталiзатор, що складається з шару зародкiв ZnO з n-типом електропровiдностi, "наноквiтiв" ZnO з n-типом електропровiдностi та поруватого кремнiю з p-типом електропровiдностi. Дослiджено фотодеґрадацiю барвника з використанням композитних фотокаталiзаторiв на основi тонких плiвок i "наноквiтiв". Використання "наноквiтiв" ZnO дало змогу полiпшити фотокаталiтичнi властивостi композиту.Ключовi слова: композит, фотокаталiзатор, фотодеґрадацiя, оксид цинку, поруватий кремнiй.
The photoluminescence spectra of ZnO nanorods grown by the hydrothermal method were investigated. In the nanostructures the neutral donor bound excitons dominate in the ultraviolet (UV) region of the photoluminescence spectrum at liquid helium temperature. The presence of the band two electron satellite transitions (TES) of the donor bound excitons allow to determine the donor binding energies ED of about 53 meV. On the basis of the measurements performed at different temperatures the thermal activation energy of the luminescence quenching (Ea 14 meV) was obtained.
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