| Luminescence properties of Eu, RE3+ (RE= Dy, Sm, Tb) co-doped oxyfluoride glasses and glass–ceramics M Kemere, J Sperga, U Rogulis, G Krieke, J Grube Journal of Luminescence 181, 25-30, 2017 | 59 | 2017 |
| Upconversion luminescence in erbium doped transparent oxyfluoride glass ceramics containing hexagonal NaYF4 nanocrystals A Sarakovskis, G Krieke Journal of the European Ceramic Society 35 (13), 3665-3671, 2015 | 55 | 2015 |
| Novel method of phosphorescent strontium aluminate coating preparation on aluminum I Bite, G Krieke, A Zolotarjovs, K Laganovska, V Liepina, K Smits, K Auzins, ... Materials & Design 160, 794-802, 2018 | 53 | 2018 |
| Crystallization and upconversion luminescence of distorted fluorite nanocrystals in Ba2+ containing oxyfluoride glass ceramics G Krieke, A Sarakovskis Journal of the European Ceramic Society 36 (7), 1715-1722, 2016 | 26 | 2016 |
| Electron paramagnetic resonance and photoluminescence investigation of europium local structure in oxyfluoride glass ceramics containing SrF2 nanocrystals A Antuzevics, M Kemere, G Krieke, R Ignatans Optical Materials 72, 749-755, 2017 | 24 | 2017 |
| Comprehensive study on different crystal field environments in highly efficient NaLaF4: Er3+ upconversion phosphor A Sarakovskis, G Krieke, G Doke, J Grube, L Grinberga, M Springis Optical Materials 39, 90-96, 2015 | 24 | 2015 |
| Ordering of fluorite-type phases in erbium-doped oxyfluoride glass ceramics G Krieke, A Sarakovskis, M Springis Journal of the European Ceramic Society 38 (1), 235-243, 2018 | 20 | 2018 |
| Novel broadband near-infrared emitting long afterglow phosphor MgGeO3: Cr3+ G Doke, A Antuzevics, G Krieke, A Kalnina, A Sarakovskis Journal of Alloys and Compounds 918, 165768, 2022 | 19 | 2022 |
| Spectroscopic studies of Cr3+ ions in natural single crystal of magnesium aluminate spinel MgAl2O4 N Mironova-Ulmane, MG Brik, J Grube, G Krieke, A Antuzevics, ... Optical Materials 121, 111496, 2021 | 17 | 2021 |
| Upconversion luminescence of a transparent glass ceramics with hexagonal Na (Gd, Lu) F4 nanocrystals G Krieke, A Sarakovskis, M Springis Journal of Alloys and Compounds 694, 952-958, 2017 | 17 | 2017 |
| UV and X-ray excited red persistent luminescence in Mn2+ doped MgGeO3 material synthesized in air and reducing atmosphere G Doke, A Antuzevics, G Krieke, A Kalnina, M Springis, A Sarakovskis Journal of Luminescence 234, 117995, 2021 | 14 | 2021 |
| Enhancement of persistent luminescence in Ca2SnO4: Sm3+ G Krieke, A Antuzevics, K Smits, D Millers Optical Materials 113, 110842, 2021 | 14 | 2021 |
| How activator ion concentration affects spectroscopic properties on Ba4Y3F17: Er3+, Yb3+, a new perspective up-conversion material J Grube, G Krieke Journal of Luminescence 203, 376-384, 2018 | 14 | 2018 |
| Phase transitions and upconversion luminescence in oxyfluoride glass ceramics containing Ba4Gd3F17 nanocrystals G Krieke, A Sarakovskis, R Ignatans, J Gabrusenoks Journal of the European Ceramic Society 37 (4), 1713-1722, 2017 | 14 | 2017 |
| Rare earth doped glass–ceramics containing NaLaF4 nanocrystals E Elsts, G Krieke, U Rogulis, K Smits, A Zolotarjovs, J Jansons, ... Optical Materials 59, 130-135, 2016 | 14 | 2016 |
| Cubic and rhombohedral Ba4Lu3F17: Er3+ in transparent glass ceramics: Crystallization and upconversion luminescence G Krieke, A Sarakovskis, M Springis Journal of Luminescence 200, 265-273, 2018 | 13 | 2018 |
| EPR, optical and thermometric studies of Cr3+ ions in the α-Al2O3 synthetic single crystal N Mironova–Ulmane, MG Brik, J Grube, G Krieke, M Kemere, ... Optical Materials 132, 112859, 2022 | 11 | 2022 |
| Upconversion luminescence of Er3+/Yb3+ and their role in the stabilization of cubic NaLaF4 nanocrystals in transparent oxyfluoride glass ceramics G Krieke, A Sarakovskis, M Springis Journal of Non-Crystalline Solids 481, 335-343, 2018 | 11 | 2018 |
| Characterization of wurtzite Zn1− xMgxO epilayers grown on ScAlMgO4 substrate by methods of optical spectroscopy L Trinkler, I Aulika, G Krieke, D Nilova, R Ruska, J Butikova, B Berzina, ... Journal of Alloys and Compounds 912, 165178, 2022 | 10 | 2022 |
| The origin of bright cyan persistent luminescence in Ca2SnO4: La3+ A Antuzevics, G Krieke, G Doke, B Berzina Materialia 21, 101374, 2022 | 10 | 2022 |
