See also:

ORCiD: 0000-0002-1252-806X

Media Coverage


  1. M. Schleuning, R. van de Krol, and M. M. May. Selective contacts as a key element of every photoelectrochemical cell, submitted.

2020 and earlier

Peer-reviewed and book chapters:

  1. J. Geiger, M. Sprik, and M. M. May. Band Positions of Anatase (001) and (101) Surfaces in Contact with Water from Density Functional Theory, Journal of Chemical Physics 152(19) (2020) p. 194706. doi:10.1063/5.0004779.
  2. M. M. May, H. Stange, J. Weinrich, T. Hannappel, and O. Supplie. The impact of non-ideal surfaces on the solid-water interaction: a time-resolved adsorption study, SciPost Physics 6(5) (2019) p. 58. doi:10.21468/SciPostPhys.6.5.058.
  3. M. Mohamed, M. M. May, M. Kanis, M. Brützam, R. Uecker, R. van de Krol, C. Janowitz, and M. Mulazzi. The electronic structure and the formation of polarons in Mo-doped BiVO4 measured by angle-resolved photoemission spectroscopy, RSC Advances 9(27) (2019), pp. 15606-15614. doi:10.1039/c9ra01092k.
  4. M. M. May and K. Rehfeld. ESD Ideas: Photoelectrochemical carbon removal as negative emission technology, Earth System Dynamics 10(1) (2019), pp. 1-7. doi:10.5194/esd-2018-53.
  5. M. M. May and M. Sprik. Water adsorption on the P-rich GaP(100) surface: Optical spectroscopy from first principles, New Journal of Physics 20(3) (2018), p. 033031. doi:10.1088/1367-2630/aaaf38.
  6. W.-H. Cheng, M. H. Richter, M. M. May, J. Ohlmann, D. Lackner, F. Dimroth, T. Hannappel, H. A. Atwater, and H.-J. Lewerenz. Monolithic Photoelectrochemical Device for 19% Direct Water Splitting, ACS Energy Letters 3(8) (2018), pp. 1795–1800. doi:10.1021/acsenergylett.8b00920. Green open access version.
  7. M. M. May, H. Döscher, and J. Turner. High-efficiency water splitting systems, In: Integrated Solar Fuel Generators. Ed. by I. Sharp, H. Atwater, and H.-J. Lewerenz. The Royal Society of Chemistry, 2018. Chap. 12, pp. 454–499. isbn: 978-1-78262-555-1. doi:10.1039/9781788010313-00454.
  8. O. Supplie, M. M. May, S. Brückner, N. Brezhneva, T. Hannappel, and E. V. Skorb. In Situ Characterization of Interfaces Relevant for Efficient Photoinduced Reactions, Advanced Materials Interfaces 4(21) (2017), p. 1601118. doi:10.1002/admi.201601118. Green open access version.
  9. M. M. May, D. Lackner, J. Ohlmann, F. Dimroth, R. van de Krol, T. Hannappel, and K. Schwarzburg. On the Benchmarking of Multi-Junction Photoelectrochemical Fuel Generating Devices, Sustainable Energy & Fuels 1(3) (2017), pp. 492–503. doi:10.1039/C6SE00083E. Green open access version.
  10. O. Romanyuk, O. Supplie, T. Susi, M. M. May, and T. Hannappel. Ab initio density functional theory study on the atomic and electronic structure of GaP/Si(001) heterointerfaces, Physical Review B 94(15) (2016), p. 155309. doi:10.1103/PhysRevB.94.155309. Green open access version.
  11. O. Supplie, M. M. May, G. Steinbach, O. Romanyuk, F. Grosse, A. Nägelein, P. Kleinschmidt, S. Brückner, and T. Hannappel. Time-resolved in situ spectroscopy during formation of the GaP/Si(100) heterointerface, Journal of Physical Chemistry Letters 6(3) (2015), pp. 464–469. doi:10.1021/jz502526e. Green open access version.
  12. O. Supplie, M. M. May, P. Kleinschmidt, A. Nägelein, A. Paszuk, S. Brückner, and T. Hannappel. In situ controlled heteroepitaxy of single-domain GaP on As-modified Si(100). APL Materials 3(12), 126110 (2015). doi:10.1063/1.4939005.
  13. O. Supplie, M. M. May, C. Höhn, H. Stange, A. Müller, P. Kleinschmidt, S. Brückner, and T. Hannappel. Formation of GaP/Si(100) heterointerfaces in presence of inherent reactor residuals, ACS Applied Materials & Interfaces 7(18) (2015), pp. 9323–9327. doi:10.1021/acsami.5b02231. Green open access version.
  14. M. M. May, H.-J. Lewerenz, D. Lackner, F. Dimroth, and T. Hannappel. Efficient Direct Solar-to-Hydrogen Conversion by In Situ Interface Transformation of a Tandem Structure, Nature Communications 6 (2015), p. 8286. doi:10.1038/ncomms9286.
  15. O. Supplie, M. M. May, H. Stange, C. Höhn, H.-J. Lewerenz, and T. Hannappel. Materials for light-induced water splitting: In situ controlled surface preparation of GaPN epilayers grown lattice-matched on Si(100), Journal of Applied Physics 115(11), 113509 (2014), p. 113509. doi:10.1063/1.4869121.
  16. O. Supplie, S. Brückner, O. Romanyuk, H. Döscher, C. Höhn, M. M. May, P. Kleinschmidt, F. Grosse, and T. Hannappel. Atomic scale analysis of the GaP/Si(100) heterointerface by in situ reflection anisotropy spectroscopy and ab initio density functional theory, Physical Review B 90(23) (2014), p. 235301. doi:10.1103/PhysRevB.90.235301. Green open access version.
  17. P. Sippel, O. Supplie, M. M. May, R. Eichberger, and T. Hannappel. Electronic structures of GaP(100) surface reconstructions probed with two-photon photoemission spectroscopy, Physical Review B 89 (2014), p. 165312. doi:10.1103/PhysRevB.89.165312.
  18. A. Ramı́rez, P. Hillebrand, D. Stellmach, M. M. May, P. Bogdanoff, and S. Fiechter. Evaluation of MnOx , Mn2O3, and Mn3O4 Electrodeposited Films for the Oxygen Evolution Reaction of Water, Journal of Physical Chemistry C 118(26) (2014), pp. 14073–14081. doi:10.1021/jp500939d.
  19. M. M. May, H.-J. Lewerenz, and T. Hannappel. Optical in situ Study of InP(100) Surface Chemistry: Dissociative Adsorption of Water and Oxygen, Journal of Physical Chemistry C 118(33) (2014), pp. 19032–19041. doi:10.1021/jp502955m.
  20. M. M. May, O. Supplie, C. Höhn, R. van de Krol, H.-J. Lewerenz, and T. Hannappel. The interface of GaP(100) and H2O studied by photoemission and reflection anisotropy spectroscopy, New Journal of Physics 15(10) (2013), p. 103003. doi:10.1088/1367-2630/15/10/103003.
  21. T. Hannappel, M. M. May, and H.-J. Lewerenz. Epitaxial III-V Thin Film Absorbers: Preparation, Efficient InP Photocathodes and Routes to High Efficiency Tandem Structures, In: Photoelectrochemical Water Splitting: Materials, Processes and Architectures. Ed. by H.-J. Lewerenz and L. Peter. The Royal Society of Chemistry, 2013. Chap. 9, pp. 223–265. isbn:978-1-84973-647-3. doi:10.1039/9781849737739-00223.
  22. F. F. Abdi, T. J. Savenije, M. M. May, B. Dam, and R. van de Krol. The Origin of Slow Carrier Transport in BiVO4 Thin Film Photoanodes: A Time-Resolved Microwave Conductivity Study, Journal of Physical Chemistry Letters 4(16) (2013), pp. 2752–2757. doi:10.1021/jz4013257.
  23. H. Döscher, O. Supplie, M. M. May, P. Sippel, C. Heine, A. G. Muñoz, R. Eichberger, H.-J. Lewerenz, and T. Hannappel. Epitaxial III-V Films and Surfaces for Photoelectrocatalysis, ChemPhysChem 13(12) (2012), pp. 2899–2909. doi:10.1002/cphc.201200390. Green open access version.
  24. M. M. May, C. Brabetz, C. Janowitz, and R. Manzke. Charge-Density-Wave Phase of 1T-TiSe2 : The Influence of Conduction Band Population, Physical Review Letters 107(17) (2011), p. 176405. doi:10.1103/PhysRevLett.107.176405. Green open access version.
  25. M. M. May, C. Brabetz, C. Janowitz, and R. Manzke. The influence of different growth conditions on the charge density wave transition of 1T-TiSe2, Journal of Electron Spectroscopy and Related Phenomena 184(3–6) (2011), pp. 180–183. doi:10.1016/j.elspec.2011.01.001. Green open access version.

Not peer-reviewed (selection):

  1. M. M. May. "Effiziente Erzeugung regenerativer Brennstoffe über die solare Wasserspaltung". Naturwissenschaftliche Rundschau 72(1) (2019), pp. 10-15.
  2. M. M. May. "YaSoFo - Yet Another SOlar Fuels Optimizer" v1.2.7. Nov. 2018 on Zenodo. doi:10.5281/zenodo.1489158.
  3. M. M. May. "Photoelectron spectroscopy data of InP(100) surfaces in contact with water and oxygen". Oct. 2019 on Zenodo. doi:10.5281/zenodo.3482982.