Nanoparticles and quantum dots of wide band gap compounds activated with either transition metal (TM) or rare earth (RE) ions are perspective light emitting phosphors and fluorescence labels for applications in optoelectronics and biology and medicine. Unfortunately, intra-shell transitions of these ions are often inefficient, since are deactivated by parity and spin selection rules. In the consequence, intra-shell transitions of RE and TM ions are characterized by relatively long luminescence decay times and low efficiencies of radiative decay. This often limits possibilities of their applications as emission activators in modern light sources and as fluorescence labels.

In my talk I will discuss methods of stimulation of emission of intra-shell transitions of RE and TM ions. Concepts of co-doping, plasmonic mechanism of emission enhancement and idea of super radiance will be discussed based on the recent experimental results.

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2. The effect of annealing on properties of Europium doped ZnO nanopowders obtained by a microwave hydrothermal method
3. Microwave conductivity of ZnO:Co and ZnO:Cu thin films with nano-size metallic Co/Cu inclusions.
4. Tb³⁺ ion luminescence enhancement in yttria host lattice obtained via microwave hydrothermal process
5. Quantum semiconductor nanostructures for applications in biology and medicine -development and commercialisation of new generation devices for molecular diagnostics on the basis of new Polish semiconductor devices
6. Hydrothermal growth of ZnO nanorods for solar cells applications
7. Epitaxial growth and characterization of zinc oxide nanorods obtained by the hydro-thermal method
8. Growth of zinc oxide and dielectric films using Atomic Layer Deposition method from organic precursors
9. Rezonansowe badania fotoemisyjne ferromagnetycznych warstw ZnCoO
10. Resonant photoemission study of Sm atoms on ZnO surface
11. Mangan w warstwach ZnMnO hodowanych metodą osadzania warstw atomowych
12. Lokalne otoczenie atomów kobaltu w cienkich warstwach ZnCoO
13. Contactless electroreflectance of ZnSe layers grown by atomic layer epitaxy
14. Electrical and optical properties of zinc oxide layers obtained by Atomic Layer Deposition
15. Zinc oxide grown by Atomic Layer Deposition - a material for novel 3D electronics
16. Dimethylzinc and diethylzinc as precursors for monocrystalline zinc oxide grown by Atomic Layer Deposition
17. Thin films of ZnS and ZnSe by Atomic Layer Deposition for light sensor applications
18. Photovoltaic cells based on nickel phthalocyanine and zinc oxide formed by atomic layer deposition
19. Effects related to deposition temperature of ZnCoO films grown by Atomic Layer Deposition – uniformity of Co distribution, structural, electric and magnetic properties
20. Effect of annealing on the structure and microstructure of Pr doped ZrO₂-Y₂O₃ nanocrystals
21. Synthesis of doped ZnO nanopowders in microwave hydrothermal reactors
22. Synthesis of Al doped ZnO nanopowders and their enhanced luminescence
23. ZnO thin films for organic/inorganic heterojunctions
24. Combining microwave and pressure techniques for hydrothermal synthesis of ZnO and ZrO₂ nanopowders doped with a range of metal ions
25. Luminescence properties of zinc oxide nanopowders doped with Al ions obtained by the hydrothermal and vapour condensation methods.
26. Wide band-gap II-VI semiconductors for optoelectronic applications
27. Low temperature ZnMnO by ALD
28. ZnMnO Films grown by Atomic Layer Deposition with uniform Mn distribution
29. Effect of annealing on electrical properties of low temperature ZnO films
30. Doping of ZnO nanopowders with Mn, Ni and Cr In an ultrasound and microwave driver hydrothermal reaction
31. Time-resolved ODMR investigations of II-VI based DMS heterostructures
32. Method of Manganese co-doping of LT ZnO films
33. Photoluminescence of ZnO films studied by femptosecond sapphire:Ti laser
34. Two color spectroscopy of ZnSe:Cr
35. Photo-EPR studies of charge tunneling processes in Cd_xZn_(1-x)Se:Fe,Cr (0 ≤ x ≤ 0.3) crystals
36. Luminescence of CdMnTe Crystals in Magnetic Field
37. Luminescence of doped nanoparticles of wide band gap II-VI compounds
38. Doping of ZnO nanopowders with Mn and Cr in an ultrasound and microwave driven hydrothermal reaction
39. Growth and characterization of thin films of ZnO by Atomic Layer Epitaxy
40. Dynamics of spin interactions in II-Mn-VI semiconductors studied with time-resolved optically detected magnetic resonance
41. Influence of n-type doping on light emission properties of GaN layers and GaN-based quantum well structures
42. Fe photoionization transition in ZnSSe:Fe crystals - photo-ESR studies
43. In-depth and in-plane profiling of InGaN-based laser diodes and heterostructures
44. Cathodoluminescence study of n-type doped GaN epilayers and GaN/InGaN quantum well structures
45. Compensation mechanisms in magnesium doped GaN
46. Optical and magnetic resonance investigations of ZnO crystals doped with transition metal ions
47. Optical and ODMR study of GaN-based HEMT structures
48. Photo-ESR and optical studies of Cr photoionization transition in CdZnSe:Cr crystals
49. Luminescent properties of wide bandgap materials at room temperature