in scientific journals (peer-reviewed)



[30] A. Mutschke, Th. Wylezich, A. D. Sontakke, M. Hoelzel, A. Meijerink, N. Kunkel*, ACaHxF3-x (A=Rb, Cs): Synthesis, structure and bright, site-sensitive tunable Eu2+ luminescence, Adv. Opt. Mater., accepted.

[29] A. Mutschke, G. M. Bernard, M. Bertmer, A. J. Karttunen, C. Ritter,V. K. Michaelis, N. Kunkel*, Na3SO4H – the first representative of the material class of sulphate hydrides, Angew. Chem. Int. Ed., accepted, DOI:


[28] Th. Wylezich, R. Valois, M. Suta, A. Mutschke, C. Ritter, A. Meijerink, A. J. Karttunen, N. Kunkel*, Borate hydrides as a new material class – Structure, computational studies and spectroscopic investigations on Sr5(BO3)3H and Sr5(11BO3)3D, Chem. Eur. J. 2020, 51, 11742-11750, DOI: 10.1002/chem.202002273 (Hot paper).

[27] J. Ueda*, Th. Wylezich, N. Kunkel*, S. Tanabe, Red Luminescence of Eu2+ in K2MgH4 and Comparison with KMgH3, J. Mater. Chem. C 2020, 8, 5124-5130, DOI: 10.1039/C9TC06459A .


[26] A. Mutschke, Th. Wylezich, C. Ritter, A. J. Karttunen, N. Kunkel*, An unprecedented fully H – substituted phosphate hydride Sr5(PO4)3H expanding the apatite family, Eur. J. Inorg. Chem. 2019, 48, 5073-5076, DOI: 10.1002/ejic.201901151

[25] Th. Wylezich, A. D. Sontakke, V. Castaing, M. Suta, B. Viana, A. Meijerink, N. Kunkel*, One ion, many facets: Efficient, structurally and thermally sensitive luminescence of Eu2+ in binary and ternary strontium borohydride chlorides, Chem. Mater. 201931, 8957−8968. DOI: 10.1021/acs.chemmater.9b03048

[24] Th. Wylezich, R. Böttcher, A. Sontakke, V. Castaing, B. Viana, A. Pöppl*, N. Kunkel*, Lanthanide Ions as Local Probes in Ionic Hydrides: A Pulsed Electron Nuclear Double Resonance and Thermoluminescence Study of Eu2+-Doped Hydride Perovskites, J. Phys. Chem. C 2019, 123, 5031-5041, DOI: 10.1021/acs.jpcc.8b12420

[23] D. Rudolph, Th. Wylezich, A. D. Sontakke, A. Meijerink, Ph. Goldner, Ph. Netzsch, H. A. Höppe, N. Kunkel*, Th. Schleid*, Synthesis and Optical Properties of the Eu2+-Doped Alkaline-Earth Metal Hydride Chlorides AE7H12Cl2 (AE = Ca and Sr), J. Lumin., 2019, 209, 150-155, DOI: 10.1016/j.jlumin.2019.01.033

[22] Review: N. Kunkel*, Th. Wylezich, Recent Advances in Rare Earth-Doped Hydrides, Z. Anorg. Allg. Chem. 2019, 645, 137-145, DOI: 10.1002/zaac.201800408 (Cover Feature Z. Anorg. Allg. Chem. 3/2019)


[21] Th. Wylezich, S. Welinski, M. Hölzel, Ph. Goldner, N. Kunkel*, Lanthanide luminescence as a local probe in mixed anionic hydrides – A case study on Eu2+-doped RbMgHxF3-x and KMgHxF3-x, J. Mater. Chem. C 2018, 6, 13006-13012, DOI: 10.1039/C8TC03881C

[20] G. Lefevre, S. Saitzek, R. Desfeux, N. Kunkel, A. Sayede*, Hydrogen storage in MgX (X = Cu and Ni) – is there still news?, J. Power Sources 2018, 402, 394-401, DOI: 10.1016/j.jpowsour.2018.09.043

[19] G. Lefevre, A. Herfurth, H. Kohlmann, A. Sayede, Th. Wylezich, S. Welinski, P. Duarte Vaz, S. F. Parker, J. F. Blach, Ph. Goldner, N. Kunkel*, Phonon-electron coupling in luminescent europium doped hydride perovskites studied by luminescence spectroscopy, inelastic neutron scattering, and first-principle calculations, J. Phys. Chem. C 2018, 122, 10501-10509, DOI: 10.1021/acs.jpcc.8b01011

[18] Review: N. Kunkel*, Ph. Goldner*, Recent Advances in Rare Earth Doped Inorganic Crystalline Materials for Quantum Information Processing, Z. Anorg. Allg. Chem. 2018, 644, 66-76, DOI: 10.1002/zaac.201700425. (Front Cover Z. Anorg. Allg. Chem. 2/2018)


 [17] J. Karlsson*, N. Kunkel, A. Ikesue, A. Ferrier, Ph. Goldner, Nuclear spin coherence properties of 151Eu3+ and 153Eu3+ in a Y2O3 transparent ceramic, J. Phys.: Condens. Matter, 2017, 29, 125501 (7p), DOI 10.1088/1361-648X/aa529a (highlighted in J. Phys.: Condens. Matter News and Views)


[16] N. Kunkel*, A. D. Sontakke, S. Kohaut, B. Viana, P. Dorenbos, Thermally simulated luminescence and first-principle study of defect configurations in the perovskite-type hydrides LiMH3:Eu2+ (M = Sr, Ba) and the corresponding deuterides, J. Phys. Chem. C, 2016, 120, 29141-29422, DOI: 10.1021/acs.jpcc.6b10088

[15] N. Kunkel*, J. Bartholomew, S. Welinski, A. Ferrier, A. Ikesue, Ph. Goldner, Dephasing mechanisms of optical transitions in rare earth doped transparent ceramics, Phys. Rev. B.: Condens. Matter Mat. Phys. 2016, 94, 184301(1-9), DOI: 10.1103/PhysRevB.94.184301

[14] N. Kunkel*, J. Bartholomew, L. Binet,  A. Ikesue, Ph. Goldner, High resolution optical linewidth measurements as a materials characterization tool, J. Phys. Chem. C2016, 120, 13725-13731, DOI: 10.1021/acs.jpcc.6b03337

[13] W. Li, V. R. Celinski, J. Weber, N. Kunkel, H. Kohlmann, J. Schmedt auf der Günne*, Doping homogeneity for doping with paramagnetic ions by NMR, Phys. Chem. Chem. Phys., 2016, 18, 9752-9757, DOI: 10.1039/c5cp07606d

[12] N. Kunkel*, H. Kohlmann, Ionic mixed hydride fluoride compounds: stabilities predicted by DFT, synthesis and luminescence of divalent europium, J. Phys. Chem. C2016, 120, 10506-10511, DOI  10.1021/acs.jpcc.6b00386

[11] N. Kunkel*, R. Böttcher, T. Pilling, H. Kohlmann, A. Pöppl, Eu2+-containing luminescent perovskite-type hydrides studied by electron paramagnetic resonance,  Z. Phys. Chem., 2016, 230, 931-942, DOI 10.1515/zpch-2015-0690


[10] N. Kunkel*, A. Ferrier, C. W. Thiel, M. O. Ramírez, L. E. Bausá, R. L. Cone, A. Ikesue, Ph. Goldner*, Rare-earth doped transparent ceramics for spectral filtering and quantum information processing, Appl. Phys. Lett. Mat. 20153, 096103, DOI 10.1063/1.4930221

[9] N. Kunkel, D. Rudolph,  A. Meijerink, S. Rommel, R. Weihrich, H. Kohlmann*, Th. Schleid*, Green luminescence of divalent europium in the mixed anion compound EuHCl,  Z. Anorg. Allg. Chem., 2015641, 1220-1224, DOI: 10.1002/zaac.201400531 (Front Cover)

[8] R. Hahn, N. Kunkel, C. Hein. R. Kautenburger, H. Kohlmann*, Recovery rate and homogeneity of doping europium into luminescent metal hydrides by chemical analysis, RSC Adv2015, 5, 9722-9728, DOI 10.1039/C4RA14076A

[7] N. Kunkel*, C. Reichert, M. Springborg, D. Wallacher, H. Kohlmann*, Hydrogenation properties of LixSr1-xAlSi studied by quantum-chemical methods (0 ≤ x ≤ 1) and in situ neutron powder diffraction (x = 1), J. Solid State Chem2015, 221, 318-324,

Until 2014

[6] N. Kunkel*, A Meijerink, H. Kohlmann*, Variation of the Eu(II) emission wavelength by substitution of fluoride by hydride in EuHxF2-x Inorg. Chem. 2014, 53, 4800-4802, DOI 10.1021/ic500744s

[5] N. Kunkel*, A. Meijerink, M. Springborg, H. Kohlmann*, Eu(II) luminescence in the perovskite host lattices KMgH3, NaMgH3 and mixed crystals LiBaxSr1-xH3J. Mater. Chem. C 2014, 2, 4799-4804, DOI 10.1039/C4TC00644E

[4] N. Kunkel*, A. Meijerink, H. Kohlmann*, Bright yellow and green Eu(II) luminescence and vibronic fine structures in LiSrH3, LiBaH3 and their corresponding deuterides, Phys. Chem. Chem. Phys2014, 16, 4807-4813, DOI 10.1039/C3CP55102D

[3] J. Bauer, J. N. Becker, P. I. Chu, A. Giehr, N. Kunkel, M. Springborg* and H. Kohlmann, Electronic structure of ternary rhodium hydrides with lithium and magnesium, Inorg. Chem2014, 50, 1135-1143, DOI 10.1021/ic402687p

[2] N. Kunkel, H. Kohlmann*, A. Sayede, M. Springborg, Alkaline-Earth Metal Hydrides as Novel Host Lattices for EuII Luminescence, Inorg. Chem2011, 50, 5873-5875, DOI 10.1021/ic200801x

[1] N. Kunkel, J. Sander, N. Louis, Y. Pang, L.-M. Dejon, F. Wagener, Y. N. Zang, A. Sayede, M. Bauer, M. Springborg*, H. Kohlmann, Theoretical investigation of the hydrogenation induced atomic rearrangements in palladium rich intermetallic compounds MPd3 (M = Mg, In, Tl), Eur. Phys. J. B 2011, 82, 1-6,





Blickpunkt Anorganische Chemie 2019:.

(5) N. Kunkel*, O. Clemens*, Daten speichern im Kristallgitter, Nachrichten aus der Chemie 2019, 67 (Dezember), 47-50, DOI: 10.1002/nadc.20194090189 .

(4) O. Clemens*, N. Kunkel*, Ordnung in der Ordnung, Nachrichten aus der Chemie 2019, 67 (Oktober), 62-66, DOI: 10.1002/nadc.20194090183 .

(3) N. Kunkel*, O. Clemens*, M. Suta, Sieh mal, Seltene Erden, Nachrichten aus der Chemie 2019, 67 (Juli/August), 71-75, DOI: 10.1002/nadc.20194089019 .

(2) N. Kunkel*, O. Clemens*, M. Hölzel, A. Senyshyn, Strukturen, Zusammensetzung, Mechanismen, Nachrichten aus der Chemie 2019, 67 (Juni), 66-69, DOI: 10.1002/nadc.20194085457 .

(1) O. Clemens*, N. Kunkel*, Mit dem richtigen Dreh die Thermodynamik überlisten, Nachrichten aus der Chemie 2019, 67 (Februar), 59-62, DOI: 10.1002/nadc.20194083930.