Organic Hole Transport Materials for opto-electronic devices,Shahzada Ahmad, Samrana Kazim, Laura Calio, Manual Salado,2016, Patent Application No. P201631098
We have developed new p-type organic small molecule based semiconductors with high mobility and ideal energy level for solar cells applications.The developed semiconductor were molecularly engineered as such to allow desired electro-optical properties such as required energy level and interfacial properties. These molecules are based on di-thiophene or terthiophene as core group, while side chains were modulated to allow better anchoring on active materials and interface along with the HUMO-LUMO level. The developed molecules were then integrated in a perovskite solar cells and work at par with the costly state-of-the art product from Merck.


Organic Hole Transport Materials Containing an Ionic Liquid,
Shahzada Ahmad, Samrana Kazim, Laura Calio, Manual Salado,Patent Application No. P201630446, Filed April, 2016
We have developed an hydrophobic doping for organic semiconductors to increase the charge mobilities.



58. Devices from Hybrid and Organic Materials, Book Ed. V. Turkovic, M. Madsen, H.-G. Rubahn, part of the ‘World Scientific Reference of Hybrid Materials’ book series, DOI: 10.1142/10993   (2019)

57Molecular parameters responsible for thermally activated transport in doped organic semiconductors, Martin Schwarze, Christopher Gaul, Reinhard Scholz, Fabio Bussolotti, Andreas Hofacker, Karl Sebastian Schellhammer, Bernhard Nell, Benjamin D. Naab, Zhenan Bao, Donato Spoltore, Koen Vandewal, Johannes Widmer, Satoshi Kera, Nobuo Ueno, Frank Ortmann & Karl Leo, Nature Materials (2019)
DOI: 10.1038/s41563-018-0277-0

56. Area-dependent behavior of bathocuproine (BCP) as cathode interfacial layers in organic photovoltaic cells, B. R. Patil, M. Ahmadpour, G. Sherafatipour, T. Qamar, A. F. Fernández, K. Zojer, H.-G. Rubahn and M. Madsen, Sci. Rep., 8, 12608 (2018)
DOI: 10.1038/s41598-018-30826-7

55. Crystalline molybdenum oxide layers as efficient and stable hole contacts in organic photovoltaic devices, M. Ahmadpour, A. L. F. Cauduro, C. Méthivier, B. Kunert, R. Resel, V Turkovic, H.-G. Rubahn, N. Witkowski, A. K. Schmid and M. Madsen , ACS Appl. Energy Mater.
DOI: 10.1021/acsaem.8b01452  (2018)

54. High Tolerance of Double-Decker Phthalocyanine toward Molecular Oxygen, Mattia Farronato, Johann Lüder, Danilo Longo, Hervé Cruguel, Marcel Bouvet , Barbara Brena, and Nadine Witkowski, J. Phys. Chem. C, 2018, 122 (35), pp 20244–20251
DOI: 10.1021/acs.jpcc.8b04084

53. New Quadratic Self-Assembly of Double-Decker Phthalocyanine on Gold(111) Surface: From Macroscopic to Microscopic Scale, Mattia Farronato, Ieva Bidermane, Johann Lüder, Marcel Bouvet , Alina Vlad, Andrew Jones , Josif Simbrunner, Roland Resel , Barbara Brena, Geoffroy Prévot, and Nadine Witkowski, J. Phys. Chem. C, 2018, 122 (46), pp 26480–26488
DOI: 10.1021/acs.jpcc.8b08462

52. Influence of Dopant–Host Energy Level Offset on Thermoelectric Properties of Doped Organic Semiconductors, Bernhard Nell , Katrin Ortstein, Olga V. Boltalina, and Koen Vandewal, J. Phys. Chem. C
DOI: 10.1021/acs.jpcc.8b03804

51. Benzothiadiazole-triphenylamine as efficient excitonblocking layer in small molecule based organic solar cellsL. Calio, B. R. Patil, J. Bendum, K. Vandewal, H.-G. Rubahn, M. Madsen, S. Kazim and S. Ahmad, Sustainable Energy Fuels
DOI: 10.1039/C8SE00251G (2018)

50. Influence of Dopant–Host Energy Level Offset on Thermoelectric Properties of Doped Organic SemiconductorsBernhard Nell , Katrin Ortstein, Olga V. Boltalina, and Koen Vandewal, J. Phys. Chem. C
49. Modeling Multi-junction Solar Cells by Non-Local Tunneling and Sub-Cell AnalysisY. Liu, M. Ahmadpour, J. Adam, J. Kjelstrup-Hansen, H.-G. Rubahn, M. MadsenIEEE J. Photovolt.
DOI: 10.1109/JPHOTOV.2018.2851308 (2018)
48. Numerical Analysis on Effects of Experimental Ga Grading on Cu(In,Ga)Se2 Solar Cell PerformanceY. Liu, B. Li, S. Lin, W. Liu, J. Adam, M. Madsen, H.-G. Rubahn and Y. Sun, J. Phys. Chem. Solids.,120, 190 (2018)
DOI: 10.1016/j.jpcs.2018.04.041
47. van der Waals Interaction Activated Strong Electronic Coupling at the Interface between Chloro Boron-Subphthalocyanine and Cu(111). Shashank S. Harivyasi, Oliver T. Hofmann, Nahid Ilyas, Oliver L. A. Monti, and Egbert Zojer,   The Journal of Physical Chemistry C, 122 (26), 14621–14630, 2018
DOI: 10.1021/acs.jpcc.8b03675

46. A Generic Route of Hydrophobic Doping in Hole Transporting Material to Increase Longevity of Perovskite Solar Cells. Laura Caliò, Manuel Salado, Samrana Kazim, Shahzada Ahmad, Joule, 2018

45. Design of cyclopentadithiophene-based small organic molecules as hole selective layers for perovskite solar cells. Laura Caliò, Samrana Kazim, Manuel Salado, Iwan Zimmermann, Mohammad Khaja Nazeeruddin and Shahzada Ahmad, Sustainable Energy Fuels, 2018
DOI: 10.1039/C8SE00119G

44. Gold nanoparticle triggered dual optoplasmonic-impedimetric sensing of prostate-specific antigen on interdigitated porous silicon platforms. C.Rodriguez,V.Torres-Costaac, O.Ahumada, V.Cebrián, C.Gómez-Abad,A.Díaz, M.Manso Silván, Sensors and Actuators B: Chemical, 267, p. 559ff, 2018
DOI: 10.1016/j.snb.2018.03.179

43. Controlling the electronic properties of van der Waals heterostructures by applying electrostatic designChristian Winkler, Shashank S. Harivyasi and Egbert Zojer, 2D Materials, 2018
DOI: 10.1088/2053-1583/aabea6

42. Elementary steps in electrical doping of organic semiconductors, Max L. Tietze,  Johannes Benduhn, Paul Pahner, Bernhard Nell, Martin Schwarze, Hans Kleemann, Markus Krammer, Karin ZojerKoen Vandewal and Karl Leo, Nature Communications 9, 1182 (2018)
DOI: 10.1038/s41467-018-03302-z

41. Dynamics of photoinduced degradation of perovskite photovoltaics: from reversible to irreversible processes,  M. V. Khenkin, K.M. Anoop, I. Visoly-Fisher, S. Kolusheva, Y. Galagan, F. Di Giacomo, O. Vukovic, B. R. Patil, G. Sherafatipour, V. Turkovic, H.-G. Rubahn, M. Madsen, A. V. Mazanik, and E. A. Katz,  ACS Appl. Energy Mater.
DOI 10.1021/acsaem.7b00256  (2018)

40. Reconsidering Figures of Merit for the Performance and Stability of Perovskite Photovoltaics, M. V. Khenkin, K. M. Anoop, I. Visoly-Fisher, Y. Galagan, F. Di Giacomo, B. R. Patil, G. Sherafatipour, V. Turkovic, H.-G. Rubahn, M. Madsen, T. Merckx, G. Uytterhoeven, J. P. A. Bastos, T. Aernouts, F. Brunetti, M. Lira-Cantu and Eugene A. Katz,  Energy Environ. Sci.
DOI 10.1039/C7EE02956J  (2018)

39. Suzuki-Miyaura cross-coupling of latent pigments in water/toluene emulsion under aerobic atmosphereMyles Rooney, Sara Mattiello, Rebecca Stara, Alessandro Sanzone, Paolo Brazzo, Mauro Sassi, Luca Beverina, Dyes and Pigments 2017.
DOI: 10.1021/acs.orglett.6b03817

38. Chemisorption of Pentacene on Pt(111) with a Little Molecular Distortion, Aldo Ugolotti, Shashank S. Harivyasi, Anu Baby, Marcos Dominguez, Anna Lisa Pinardi, Maria Francisca López, José Ángel Martín-Gago, Guido Fratesi, Luca Floreano, and Gian Paolo Brivio, Journal of Physical Chemistry C 2017 121 (41), 22797-22805.
DOI: 10.1021/acs.jpcc.7b06555

37. Design of active and stable oxygen reduction reaction catalysts by embedding CoxOy nanoparticles into nitrogen-doped carbon, F. Yang, M. Abadia, C. Chen, W. Wang, L. Li, L. Zhang, C. Rogero, M. Knez, Nano Research, 1, 97-107 (2017)
DOI: 10.1007/s12274-016-1269-5

36.  Cu(II) and Zn(II) based Phthalocyanine as Hole selective layers for Perovskite Solar Cells, L. Calio, J. Follana-Berná, S. Kazim, M. Madsen, H.-G. Rubahn, Á. Sastre-Santos and S. Ahmad, Sustainable Energy Fuels, 2017
DOI: 10.1039/C7SE00367F (2017)

35. Conductive Polymer-Inorganic Hybrid Materials through Synergistic Mutual Doping of the ConstituentsWeike Wang, Chaoqiu Chen, Christopher Tollan, Fan Yang, Mikel Beltrán, Yong Qin, and Mato Knez, ACS Applied Materials & Interfaces, 9(33), 27964-27971, 2017
DOI: 10.1021/acsami.7b09270

34. Identifying the charge generation dynamics in Cs+-based triple cation mixed perovskite solar cells

33. Utilizing Schottky barriers to suppress short-channel effects in organic transistors, Anton F. Fernández and  Karin Zojer, Appl. Phys. Lett. 111, 173302 (2017)
DOI: 10.1063/1.4997405

32. The influence of electrical effects on device performance of organic solar cells with nano-structured electrodes, M. Mirsafaei, A. H. Fallahpour, P. Lugli, H.-G. Rubahn, J. Adam and M. Madsen, Sci. Rep., 7, 5300 (2017)
DOI: 10.1038/s41598-017-05591-8

31. 4P-NPD ultra thin-films as efficient exciton blocking layers in inverted DBP/C70 based organic solar cells, R. Patil, Y. Liu, T. Qamar, H.-G. Rubahn and M. Madsen J. Phys. D: Appl. Phys. (2017)
DOI: 10.1088/1361-6463/aa7f1c

30. ITO with embedded silver grids as transparent conductive electrodes for large area organic solar cells, B. R. Patil, M. Mirsafaei, P. P. Cielecki, A. L. F. Cauduro, J. Fiutowski, H.-G. Rubahn and M. Madsen, Nanotechnology (2017)
DOI: 10.1088/1361-6528/aa820a

29. Current Matching in Multifold DBP/C70 Organic Solar Cells with Open Circuit Voltages of up to 6.44 V, MAhmadpour, Y. Liu, H.-G. Rubahn and M. Madsen,  IEEE J. Photovolt. (2017)
DOI: 10.1109/JPHOTOV.2017.2713405

28. Work Function Mapping of MoOx Thin-Films for Application in Electronic Devices, A. L. F. Cauduro, R. dos Reis, G. Chen, A. K. Schmid, H.-G. Rubahn and M. Madsen, Ultramicroscopy (2017)
DOI: 10.1016/j.ultramic.2017.03.025

27. Origin and whereabouts of recombination in perovskite solar cells, Contreras-Bernal, M. Salado, A. Todinova, L. Calio, S. Ahmad, J. Idígoras and J. A. Anta, Phys. Chem. C, 2017
DOI: 10.1021/acs.jpcc.7b01206.

26. Impact of Moisture on efficiency-determining electronic processes in perovskite solar cells, Salado, L. Contreras-Bernal, L. Caliò, A. Todinova, C. López, S. Ahmad, A. Borrás, J.Idígoras, J. A. Anta, Journal of Materials Chemistry A (2017)
DOI: 10.1039/C7TA02264F

25. Efficient and Controllable Vapor to Solid doping of the Polythiophene P3HT by Low Temperature Vapor Phase InfiltrationWeike Wang, Chaoqiu Chen, Christopher Tollan, Fan Yang, Yong Qin, and Mato Knez. Journal of Materials Chemistry C, 2017.
DOI: 10.1039/C6TC05544C

24. Tuning the Conductivity of Polyaniline through Doping by Means of Single Precursor Vapor Phase Infiltration,  Weike Wang, Fan Yang, Chaoqiu Chen, Lianbing Zhang, Yong Qin, and Mato Knez,  Advanced Materials Interfaces. 2016.
DOI: 10.1002/admi.201600806.

23. Crystalline Molybdenum Oxide Thin-Films for Application as Interfacial Layers in Optoelectronic Devices, André L. F. Cauduro, Roberto dos Reis, Gong Chen, Andreas K. Schmid, Christophe Méthivier, Horst-Günter Rubahn, Léo Bossard-Giannesini, Hervé Cruguel, Nadine Witkowski, and Morten Madsen, ACS Appl. Mater. Interfaces, 2017.
DOI: 10.1021/acsami.6b14228

22. Suzuki−Miyaura Micellar Cross-Coupling in Water, at Room Temperature, and under Aerobic Atmosphere, Sara Mattiello, Myles Rooney, Alessandro Sanzone, Paolo Brazzo, Mauro Sassi, and Luca Beverina, Organic Letters, 2017, 19 (3), pp 654–657.
DOI: 10.1021/acs.orglett.6b03817

21. Vacuum deposited perovskite solar cells employing dopant-free triazatruxene as the hole transport material, Laura Calió, Cristina Momblonab, Lidon Gil-Escrigb, Samrana Kazim, Michele Sessolob,Ángela Sastre-Santosc, Henk J. Bolinkb, Shahzada Ahmad, Solar Energy Materials and Solar Cells, 163, 2017,  237–241.
DOI: 10.1016/j.solmat.2017.01.037

 20. Cesium power: low Cs+ levels impart stability to perovskite solar cells, Melepurath Deepa, Manuel Salado, L. Calio, S. Kazim, S. M. Shivaprasadc and Shahzada Ahmad, Phys.Chem.Chem.Phys.,2017, 19, 4069.
DOI: 10.1039/c6cp08022g

19. Extending the lifetime of perovskite solar cells using a perfluorinated dopant, Salado, F. J. Ramos, V. Manzanares, P. Gao, M. K. Nazeeruddin, P. J. Dyson and S. AhmadChemSuSChem, 2016, 9, 2708-2714
DOI: 10.1002/cssc.201601030

18. Interface play between Perovskite and Hole Selective Layer on the Performance and Stability of Perovskite Solar Cells, Salado, J. Idigoras, L. Calio, S. Kazim, M. K. Nazeeruddin, J. A. Anta and S. Ahmad, ACS Applied Materials & Interfaces, (2016)
DOI: 10.1021/acsami.6b12236

17. Hole transport materials for perovskite solar cells.L.Calio, S. Kazim, M. Grätzel and S. Ahmad,
Angewandte Chemie International Edition, 2016,
DOI: 10.1002/anie.201601757

16. The influence of mixed organic cation ratio in lead iodide based perovskite on the performance of solar cells. M. Salado, L.Calio,R. Berger, S. Kazim and S. Ahmad Phys. Chem. Chem. Phys, 2016,18, 27148-27157
DOI: 10.1039/c6cp03851d

15. Near-infrared roll-o -free electroluminescence from highly stable diketopyrrolopyrrole light emitting diodes. Mauro Sassi, Nunzio Buccheri, Myles Rooney, Chiara Botta, Francesco Bruni, Umberto Giovanella, Sergio Brovelli & Luca Beverina. Sci. Rep. 6, 34096,
DOI: 10.1038/srep34096 (2016)

14. Periodically arranged colloidal gold nanoparticles for enhanced light
harvesting in organic solar cells, Mina Mirsafaei, André Luis Fernandes Cauduro, Casper Kunstmann-Olsen, Adam Michael Davidson, Søren Hassing, Martin A.B. Hedegaard, Horst-Günter Rubahn, Jost Adam, and Morten Madsen, Proc. of SPIE Vol. 9898 989810

13. Femtomagnetism in graphene induced by core level excitation of organic adsorbates, Abhilash Ravikumar, Anu Baby, He Lin, Gian Paolo Brivio, Guido Fratesi, Scientific Reports 6, Article number: 24603 (2016)

12. Sticking with the Pointy End? Molecular Configuration of Chloro Boron-Subphthalocyanine on Cu(111), Nahid Ilyas, Shashank S. Harivyasi, Percy Zahl, Rocio Cortes, Oliver T. Hofmann, Peter Sutter, Egbert Zojer, and Oliver L. A. Monti. The Journal of Physical Chemistry C 2016 120 (13), 7113-7121
DOI: 10.1021/acs.jpcc.5b11799

11. Interplay between Steps and Oxygen Vacancies on Curved TiO2(110), L. A. Miccio, M. Setvin, M. Müller, M. Abadía, I. Piquero, J. Lobo-Checa, F. Schiller, C. Rogero, M. Schmid, D. Sánchez-Portal, U. Diebold, and J. E. Ortega. Nano Letters 16, 2017–2022 (2016).
DOI: 10.1021/acs.nanolett.5b05286

10. Long-Term Stabilization of Organic Solar Cells using UV Absorbers, V. Turkovic, S. Engmann, N. Tsierkezos, H.Hoppe, M. Madsen, H.-G. Rubahn, U. Ritter and G. Gobsch, J. Phys. D: Appl. Phys, 49, 125604 (2016)
DOI: 10.1088/0022-3727/49/12/125604

9. Enhanced absorption in organic thin-films from imprinted concave nanostructures, A. J. Goszczak, H.-G. Rubahn and M. Madsen, Mater. Sci, 23(2016)

8. Long-Term Stabilization of Organic Solar Cells using Hydoperoxide Decomposers as Additives, V. Turkovic, S. Engmann, N. Tsierkezos, H.
Hoppe, M. Madsen, H.-G. Rubahn, U. Ritter and G. Gobsch, Appl. Phys. A, 122, 255 (2016)

7. Nanoscale Aluminum concaves for light-trapping in organic thin-films, A. J. Goszczak, J. Adam, P. P. Cielecki, J. Fiutowski, H.-G. Rubahn and M. Madsen, Opt. Commun., 370, 135 (2016)
DOI: 10.1016/j.optcom.2016.02.021

6. Postadsorption Work Function Tuning via Hydrogen Pressure Control
Hermann Edlbauer, Egbert Zojer, and Oliver T. Hofmann, J. Phys. Chem. C 2015, 119, 27162−27172J.
DOI 10.1021/acs.jpcc.5b08827

5. Organic and Hybrid Photonic Crystals , Springer International Publishing (2015) 359-374.
D. Comoretto, F. Marabelli, A. Valsesia, S. Giudicatti, L. Fornasari,P. Pellacani, A. Frangolho, “Plasmonic Sensors on 2D Ordered Structures”.
DOI 10.1007/978-3-319-16580-6

4. Hydrophobic perfluoro-silane functionalization of porous silicon photoluminescent films and particles ,C. Rodrigueza, P. Laplacea, D. Gallach-Péreza,P. Pellacani, R.J. Martín-Palmaa, V. Torres-Costaa, G. Cecconec, M. Manso Silván, Appl.Surf.Sci. in press

3. The Role of Charge Transfer State on the Reduced Langevin Recombination in Organic Solar Cells: A Theoretical Study,Y. Liu, K. Zojer, B. Lassen, J. Kjelstrup-Hansen, H.-G. Rubahn and M. Madsen, J. Phys. Chem. C, 119, 26588 (2015).
DOI: 10.1021/acs.jpcc.5b08936

2. Tuning the optoelectronic properties of amorphous MoOx films by reactive sputtering A.L. Fernandes Cauduro, Z.E. Fabrim, M. Ahmadpour, P.F.P. Fichtner, S. Hassing, H.-G. Rubahn, and M. Madsen, Appl. Phys. Lett. 106, 202101 (2015).

1. Impact of the capacitance of the dielectric on the contact resistance in organic transistors, K. Zojer, E. Zojer, A. Ferndandez-Fernandez, M. Gruber , Phys.Rev. Applied 4, 044002 (2015).


Miguel Manso was interviewed by the Radio Circulo on Jan.27, 2016. The broadcast is in Spanish:
Miguel Manso was invited to the ‘Café Scientifique’ on Jan 26, 2016 and gave an introduction which can be viewed in Spanish with the following link: