On the origins of the green luminescence in the “zero-dimensional perovskite” Cs4PbBr6: conclusive results from cathodoluminescence imaging von Riesen, Nicolas, Lockrey, Mark, Badek, Kate, Riesen, Hans

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Efficient Generation of Stable Sm2+ in Nanocrystalline BaLiF3:Sm3+ by UV- and X‑Irradiation von Chowdhury, Nishita, Riesen, Nicolas, Riesen, Hans

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Luminescence and photoionization of X-ray generated Sm2+ in coprecipitated CaF2 nanocrystals von Z Siti Rozaila, Riesen, Nicolas, Riesen, Hans

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Optical Spectroscopy of Graphene Quantum Dots: The Case of C132 von Riesen, Hans, Wiebeler, Christian, Schumacher, Stefan

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Photoluminescence Properties of X-Ray Generated Divalent Sm in Mechanochemically Prepared Nanocrystalline CaF₂:Sm3 von Rozaila, Z. Siti, Riesen, Nicolas, Riesen, Hans

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Mechanochemical synthesis of an efficient nanocrystalline BaFBr:Eu2+ X-ray storage phosphor von Wang, Xianglei, Riesen, Hans

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Ultra-slow electron spin-lattice relaxation in a low magnetic field enables massive optical spin polarization in the 4 A 2 ground state of Cr 3 + in ruby von Riesen, Hans

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Ultra-slow electron spin-lattice relaxation in a low magnetic field enables massive optical spin polarization in the 4A2 ground state of Cr3+ in ruby This paper is dedicated to my... von Riesen, Hans

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Highly efficient valence state switching of samarium in BaFCl:Sm nanocrystals in the deep UV for multilevel optical data storage von Riesen, Hans, Badek, Kate, Monro, Tanya M., Riesen, Nicolas

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Photoreduction of Sm3+ in Nanocrystalline BaFCl von Riesen, Nicolas, François, Alexandre, Badek, Kate, Monro, Tanya M, Riesen, Hans

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Slow light and photon echoes in the 7 F 0 → 5 D 0 transition of Sm 2+ in single-crystal BaFCl von Riesen, Hans, Rebane, Aleksander

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Slow light and photon echoes in the 7F0→5D0 transition of Sm2+ in single-crystal BaFCl von Riesen, Hans, Rebane, Aleksander

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Persistent Photochemical Hole-Burning in the R-Lines of Tetravalent Manganese in Submicron α-Al 2 O 3 von Wahib, Norfadira, Riesen, Hans

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Persistent Photochemical Hole-Burning in the R‑Lines of Tetravalent Manganese in Submicron α‑Al2O3 von Wahib, Norfadira, Riesen, Hans

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Efficient X-ray Generation of Sm2+ in Nanocrystalline BaFCl/Sm3+:  a Photoluminescent X-ray Storage Phosphor von Riesen, Hans, Kaczmarek, Wieslaw A

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Photostimulated and persistent luminescence of samarium ions in BaFCl von Zhang, Jun, Riesen, Hans

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Photoinduced electron transfer in Eu2+ and Sm3+ co-doped CaF2 nanocrystals prepared by co-precipitation von Rozaila, Z. Siti, Riesen, Hans

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Ultra-slow electron spin-lattice relaxation in a low magnetic field enables massive optical spin polarization in the4A2ground state of Cr3+in ruby von Riesen, Hans

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Photoluminescence of X‑ray-Induced Divalent Tm Ions in BaLiF3:Tm3+ Nanocrystals von Chowdhury, Nishita, Riesen, Nicolas, Riesen, Hans

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Controlled Generation of Tm2+ Ions in Nanocrystalline BaFCl:Tm3+ by X‑ray Irradiation von Zhang, Jun, Riesen, Hans

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