Publications

2017

 

61) “Gold Nanoparticles Physicochemically Bonded onto Tungsten Disulfide Nanosheet Edges Exhibit Augmented Plasmon Damping" G. T. Forcherio, J. R. Dunklin, C. Bakes, Y. Vaynzof, M. Benamara and D. K. Roper, AIP Advances 7, 075103 (2017).

 

60) “High Performance Planar Perovskite Solar Cells by ZnO Electron Transport Layer Engineering" Q. An, P. Fassl, Y. J. HofstetterD. Becker-Koch, A. Bausch, P. E. Hopkinson and Y. Vaynzof, Nano Energy, advanced article.

 

59) “Role of Microstructure in Oxygen Induced Photodegradation of Methylammonium Lead Triiodide Perovskite Films"  P. Fassl*Q. Sun*D. Becker-Koch, A. Bausch, S. Bai, P. E. Hopkinson, H. J. Snaith and Y. Vaynzof, Adv. Energy Mater., advanced article. * These authors contributed equally.

 

58) “Triptycene-trisaroylenimidiazoles as Non-Fullerene Acceptors - Influence of Side-Chains on Solubility, Device Morphology and Performance"  E. Menke, D. LeiboldV. Lami, Y. J. Hofstetter, M. Mastalerz and Y. Vaynzof, Org. Electron. 47, 211 (2017).

 

57) “N-Heteroacenes as a New Class of Non-Fullerene Electron Acceptors for Organic Bulk-Heterojunction Photovoltaic Devices"  V. LamiD. LeiboldY. J. HofstetterD. Becker-Koch, P. Biegger, F. Paulus, P. E. Hopkinson, M. Adams, U. H. F. Bunz, S. Huettner, I. Howard, A. A. Bakulin and Y. Vaynzof, Solar RRL, just accepted.

 

56) “Observation of Oxygen Vacancy Migration in Memory Devices based on ZnO Nanoparticles"  C. Li, Y. Vaynzof, G. Lakhwani, G. J. Beirne, J. Wang and N. C. Greenham, J. Appl. Phys., just accepted.

 

55) “Planar versus triptycenylene end-capped aroyleneimidazoles as electron acceptors in organic photovoltaics"  E. Menke, D. Leibold, A. Ullrich, Y. Vaynzof and M. Mastalerz, Org. Chem. Front., just accepted.

 

54) “The effect of injection layer sub-bandgap states on electron injection in organic light-emitting diodes" C. Hinzmann, O. Magen, Y. J. HofstetterP. E. Hopkinson, N. Tessler and Y. Vaynzof, ACS Appl. Mater. Interfaces, just accepted.

 

53) “Preparation of hierarchical C@MoS2@C sandwiched hollow spheres for Litium ion batteries" Z. Li, A. Ottmann, T. Zhang, Q. Sun, H.-P. Meyer, Y. Vaynzof, J. Xiang and R. Klingeler, J. Mater. Chem. A, just accepted.

 

52) “Partial oxidation of the absorber layer reduces charge carrier recombination in antimony sulfide solar cells" K. C. Gödel, B. Roose, A. Sadhanala, Y. Vaynzof, S. Pathak and U. Steiner, Phys. Chem. Chem. Phys., 19 (2), 1425 (2017).

 

2016

 

51) “A Facile Synthesis Method and Electrochemical Studies of Hierarchical Structured MoS2/Cnanocomposite" Z. Li, A. Ottmann, E. Thauer, C. Neef, H. Sai, Q. Sun, K. Cendrowski, H.-P. Meyer, Y. Vaynzof, E. Mijowska, J. Xiang and R. Klingeler, RCS Advances,  6 (79), 76084 (2016).

 

50) “Efficient Perovskite Solar Cells by Metal Ion Doping" J. Wang, Z. Wang, S. K. Pathak, W. Zhang, F. Wisnivesky, J. Huang, P. Nayak, J. Patel, Y. Vaynzof, R. Zhu, I. Ramirez, J. Zhang, C. Ducati, C. Grovenor, M. Johnson, D. S. Ginger, R. Nicholas and H. Snaith, Energy Environ. Sci. 9 (9), 2892 (2016).

 

49) “Side Group Engineering: The Influence of Norbornadienyl Substituents on the Properties of Ethynylated Pentacene and Tetraazapentacene " F. Paulus, M. Porz, M. Schaffroth, F. Rominger, A. Leineweber,  Y. Vaynzof and U. H. F. Bunz, Org. Electron. 33, 102 (2016).

 

48) “Rigid Conjugated Twisted Truxene-Dimers and Trimers as Electron Acceptors"  G. Zhang, V. Lami, F. Rominger, Y. Vaynzof and M. Mastalerz, Angew. Chem 55(12), 3977 (2016).

 

47) “The effect of Tuning the Microstructure of TIPS-Tetraazapentacene on the Performance of Solution Processed Thin Film Transistors"  F. Paulus, J. U. Engelhart, P. E. Hopkinson, C. Schimpf, A. Leineweber, H. Sirringhaus, Y. Vaynzof and U. H. F. Bunz, J. Mater. Chem. C 4, 1194 (2016).

 

46) “Simultaneous Enhancement in Open Circuit Volage and Short Circuit Current of Hybrid Organic-Inorganic Photovotlaics by Inorganic Interfacial Modification" Y. J. Hofstetter P. E. Hopkinson, A. A. Bakulin and Y. VaynzofJ. Mater. Chem. C 4, 1111 (2016).

 

45) “Improving Charge Separation Across a Hybrid Oxide/Polymer Interface by Cs Doping of the Metal Oxide" Y. SevinchanP. E. Hopkinson, A. A. Bakulin, J. Herz, M. Motzkus and Y. VaynzofAdv. Mater. Inter., accepted (2016).

 

44) “Pi-Extended Rigid Triptycene-Trisaroylenimidazoles as Electron Acceptors" E. Menke, V. LamiY. Vaynzof and M. Mastalerz, Chem. Comm. 52, 1048 (2016).

 

43) “Iodine Migration and its Effect on Hysteresis in Perovskite Solar Cells" C. Li, S. Tscheuschner, F. Paulus, P. E. Hopkinson, J. Kießling, A. Köhler, Y. Vaynzof and S. Huettner, Adv. Mater. 28, 2446 (2016).

2015

 

42) “Charge Dynamics in Solution-Processed Nanocrystalline CuInS2 Solar cells" J. E. Halpert, F. S. F. Morgenstern, B. Ehrler, Y. Vaynzof, D. Credgingron and N. C. Greenham, ACS Nano, in press (2015).
 
 
41) “Synthesis and Modeling of Uniform Complex Metal Oxides by Close-Proximity Atmospheric Pressure Chemical Vapor Deposition" R. L. Z. Hoye, D. Munoz-Rojas, K. P. Musselman, Y. Vaynzof and J. L. MacManus-Driscoll, ACS Appl. Mater. Interfaces, in press (2015).
 
 
40) “Electronic Structure of Low-Temperature Solution-Processed Amorphous Metal Oxide Semiconductors for Thin-Film Transistor Applications" J. Socratous, K. K. Banger, Y. Vaynzof, A. Sadhanala, A. D. Brown, A. Sepe, U. Steiner and H. Sirringhaus, Adv. Funct. Mater., in press (2015).
 
 
39) “Improving the Photocatalytic Reduction of CO2 to CO through Immobilisation of a Molecular Re Catalyst on TiO2" C. D. Windle, E. Pastor, A. Reynal, A. C. Whitwood, Y. Vaynzof, J. R. Durrant, R. N. Perutz and E. Reisner, Chem. Eur. J., in press (2015).
 
 

38) “N,N'-Dihydrotetraazapentacenes (DHTA) in thin film transistors" F. Paulus, B. D. Lindner, H. Reiss, F. Rominger,, A. Leineweber, Y. Vaynzof, H. Sirringhaus and U. H. F. Bunz, J. Mater. Chem. C. 3, 1604 (2015).

 

37) “Role of PbSe Structural Stabilization in Photovoltaic Cells" D. Asil, B. J. Walker, B. Ehrler, Y. Vaynzof, A. Sepe, S. Bayliss, A. Sadhanala, P. C. Y. Chow, P. E. Hopkinson, U. Steiner, N. C. Greenham and R. H. Friend, Adv. Funct. Mater. 25 (6), 928 (2015).

2014

36) “Structure Influence on Charge Transport in Napthalenediimide-Thiophene Co-Polymers" M. Malgorzata Szumilo, E. Gann, C. R. McNeill, V. Lemaur, Y. Oliver, L. Thomsen, Y. Vaynzof, M. Sommer and H. Sirringhaus, Chem. Mater. in press (2014).

 

35) “Performance and Stability Enhancement of Dye-Sensitized and Perovskite Solar Cells by Al Doping of TiO2" S. K. Pathak, A. Abate, P. Ruckdeschel, B. Roose, K. C. Gödel, Y. Vaynzof, A. Santhala, S. Watanabe, D. J. Hollman, N. Noel, A. Sepe, U. Wiesner, R. Friend, H. J. Snaith, U. Steiner, Adv. Funct. Mater. in press (2014).

 

34) “Improved performance of ZnO/polymer Hybrid Photovoltaic devices by combining metal oxide doping and interfacial modification" O. Pachoumi, A. A. Bakulin, A. Sadhanala, H. Sirringhaus, R. H. Friend and Y. Vaynzof, J. Phys. Chem. C, 118 (33), 18945 (2014).

 

33) “Effect of ozone on the stability of solution-processed anthradithiophene-based organic field-effect transistors" I. Nasrallah, K. K. Banger, Y. Vaynzof, M. M. Payne, P. Too, J. Jongman, J. E. Anthony and H. Sirringhaus, Chem. Mater., 26 (13), 3914 (2014).

 

32) “An organic "donor-free" dye with enhanced open-cicruit voltage in solid-state sensitized solar cells" A. Abete, M. Planells, D. J. Hollman, S. D. Stranks, A. Petrozza, A. Ram, S. Kandada, Y. Vaynzof, S. Pathak, N. Robertson and H. J. Snaith, Adv. Energy Mat., in press (2014).

 

31) “Highly active metastable ruthenium nanoparticles for hydrogen production through the catalytic hydrolysis of ammonia borane" E. K. Abo-Hamed, T. Pennycook, Y. Vaynzof, C. Toprakcioglu, A. Koutsiobas and O. A. Scherman, Small, 10 (15), 3145 (2014).

 

30) “The influence of nanocrystal aggregates on photovoltaic performance in nanocrystal-polymer bulk heterojunction solar cells" M. L. Boehm, R. J. P. Kist, F. S. F. Morgenstern, B. Ehrler, S. Zarra, A. Kumar, Y. Vaynzof and N. C. Greenham, Adv. Energy Mat., in press (2014).

 

 

29) “Polaron spin current transport in organic semiconductors" S. Watanabe, K. Ando, K. Kang, S. Mooser, Y. Vaynzof, H. Kurebayashi, E. Saitoh and H. Sirringhaus, Nat. Phys., 10, 308 (2014).

 

 

28) “Structure formation in P3HT/F8TBT Blends" A. Sepe, Z. Rong, M. Sommer, Y. Vaynzof, X. Sheng, P. Mueller-Buschbaum, D. Smilgies, Z. -K. Tan, L. Yang, R. H. Friend, U. Steiner and S. Huettner, Energy and Enviromental Science, 7, 1725 (2014).

 

 

27) “Improved open-circuit voltage in ZnO-PbSe quantum dot solar cells by understanding and reducing losses arising from the ZnO conduction band tail" R. L. Z. Hoye, B. Ehrler, M. L. Boehm, D. Munoz-Rojas, R. M. Altamimi, A. Y. Alyamani, Y. Vaynzof, A. Sadhanala, G. Ercolano, N. C. Greenham, R. H. Friend, J. L. MacManus-Driscoll and K. P. Musselman, Adv. Energy Mater, in press (2014).

 
 

26) “In-situ switching from barrier-limited to ohmic anodes for efficient organic optoelectronics" Z. -K Tan, Y. Vaynzof, Dan Credgington, C. Li, M. T. L. Casford, A. Sepe, S. Huettner, M. Nikolka, F. Paulus, L. Yang, H. Sirringhaus, N. C. Greenham and R. H. Friend, Adv. Funct. Mater, in press (2014).

 

 

25) “Gyroid-structured 3D ZnO networks made by atomic layer deposition”, E. Kim, Y. Vaynzof, A. Sepe, S. Guldin, M. Scherer, P. Cuhna and U. Steiner, Adv. Funct. Mater., 24, 863 (2014).

 

 

24) “Ultrafast Charge and Energy Transfer Dynamics in Conjugated Polymer:Cadmium Selenide Nanocrystal Blends" F. S. F. Morgenstern, A. Rao, M. L. Boëm, Rene J. P. Kist, Y. Vaynzof, N. C. Greenham, ACS Nano, 8 (2), 1647 (2014).

 

2013

 

23) “Growth of 12 nm arrays of ZnO nanostructures mediated by the interlamellar spacing of semi-crystalline polymers”, R. Saberi-Moghaddam, S. Huettner, Y. Vaynzof, C. Ducati, G. Diviniti, , R. H. Lohwasser, K. P. Musselman, A. Sepe, M. J. Scherer, M. Thelakkat, U. Steiner and R. H. Friend, Nano Lett., 13 (9), 4499 (2013).

 

22) “Suppressing recombination in polymer photovoltaic devices via energy-level cascades”, Z. K. Tan, K. Johnson, Y. Vaynzof, A. A. Bakulin, L. L. Chua, P. K. H. Ho and R. H. Friend, Adv. Mater., 25 (30), 4131 (2013)

 

 

21) “Improved performance and stability of inverted hybrid solar cells with sol-gel processed, amorphous mixed metal oxide electron extraction layers comprising alkaline earth metals", O. Pachoumi, C. Li, Y. Vaynzof, K. Banger and H. Sirringhaus, Adv. Energy. Mater., 3 (11), 1428 (2013)

 

 

20) “Improved performance and stability of inverted hybrid solar cells through the incorporation of Sr and Ba alkaline metals in a sol-gel processed ZnO electron extraction layer”, O. Pachoumi, C. Li, Y. Vaynzof, K. Banger and H. Sirringhaus, SPIE Organic Photonics+ Electronics, 88300E-88300E-7 (2013)

 

19) “Preventing interfacial recombination in colloidal quantum dot solar cells by doping the metal oxide”, B. Ehrler, K. P. Musselman, M. L. Bohm, F. Morgenstern , Y. Vaynzof, B. J. Walker, J. MacManus-Driscoll and N. C. Greenham, ACS Nano, 7, 4210 (2013)

 

18) “Ultrafast pump-push photocurrent spectroscopy of organic photoconversion systems”, A. A. Bakulin, A. Rao, Y. Vaynzof, S. Gelinas, V. G. Pavelyev, P. H. M. van Loosdrecht, M. S. Pshenichnikov, D. Niedzialek, J. Cornil, D. Beljonne and R. H. Friend, Analusis 28, 99 (2013)

 

2012

 

17) “An Electroactive Molecular Cobalt Catalyst on a Mesoporous Metal Oxide Electrode for the Evolution of Hydrogen from Water”, N. M. Muresan, J. Willkomm, D. Mersch, Y. Vaynzof and E. Reisner, Angewandte Chemie 124 (51), 12921 (2012) 

 

16) “White-light bias external quantum efficiency measurements of standard and inverted P3HT: PCBM photovoltaic cells”, T. J. K. Brenner, Y. Vaynzof, Z. Li, D. Kabra, R.H. Friend, and C.R. McNeill, J. Phys. D: Appl. Phys., 45 (41), 415101 (2012)

 

15) “Compositional and morphological studies of polythiophene/polyfluorene blends in inverted architecture hybrid solar cells”, Y. Vaynzof, T. J. K. Brenner, D. Kabra, H. Sirringhaus and R. H. Friend, Adv. Funct. Mater., 22, 2418 (2012)

 

14) “Recent advances in hybrid organic-inorganic optoelectronics”, Y. Vaynzof, D. Kabra, T. J. K. Brenner, H. Sirringhaus and R. H. Friend, Isr. J. Chem, 52 (6), 496 (2012) (invited paper)

 

13) “Direct observation of photoinduced bound charge-pair states at organic-inorganic semiconductor interface”, Y. Vaynzof, A. Bakulin, S. Geniles, H. Sirringhaus and R. H. Friend, Phys. Rev. Lett, 108 (24), 246605 (2012)

 

12) “In situ measurement of exciton energy in hybrid-singlet fission solar cells”, B. Ehler, B. J. Walker, M. Bohm, M. W. B. Wilson, Y. Vaynzof, R. H. Friend and N. C. Greenham, Nat. Commun., 3, 1019 (2012)

 

2011

 

11) “Spinodal phase separation in poly[3-hexylthiophene] and C61-butyric acid methyl ester blends”, Y. Vaynzof, D. Kabra, L. Zhao, L. L. Chua, U. Steiner and R. H. Friend, ACS Nano 5, 329 (2011)

 

10) “Improved electron injection in poly(9,9′-dioctylfluorene)- co-benzothiodiazole via cesium carbonate by means of coannealing”, Y. Vaynzof, D. Kabra, L. L. Chua o and R. H. Friend, Appl. Phys. Lett, 98, 113306 (2011)

 

9) “Doping of organic semiconductors using molybdenum trioxide: a quantitative time-dependant electrical and spectroscopic study”, M. Gwinner, R. Di Pietro, Y. Vaynzof, K. J. Greenberg, P. K. H. Ho, R. H. Friend and H. Sirringhaus, , Adv. Funct. Mater., 21, 1432 (2011)

 

8) “Excitonic Materials for Hybrid Solar Cells and Energy Efficient Lighting”, D. Kabra, L. P. Lu, Y. Vaynzof, M. Song, H. J. Snaith and R. H. Friend, AIP Conference Proceedings 1349, 60 (2011).

 

2010

 

7) “Solution-processed zinc oxide as high-performance air-stable electron injector in organic ambipolar light-emitting field-effect transistors”, M. C. Gwinner, Y. Vaynzof, K. K. Banger, P. K. H. Ho, R. H. Friend and H. Sirringhaus, Adv. Funct. Mater., 20, 3457 (2010)

 

6) “Improved photoinduced charge carriers separation in organic-inorganic hybrid photovoltaic devices”, Y. Vaynzof, D. Kabra, L. Zhao, P. K. H. Ho, A. T.-S. Wee and R. H. Friend, Appl. Phys. Lett. 97, 033309 (2010)

 

5) “Target detection and verification via airborne hyperspectral and high-resolution imagery processing and fusion”, D. E. Bar, K. Wolowelsky, Y. Swirski, Z. Figov, A. Michaeli, Y. Vaynzof, Y. Abramovitz, A. Ben-Dov, O. Yaron, L. Weizman and R. Adar, IEEE Sensors 10, 3, 707 (2010)

 

2009

 

4) “Current voltage relation of amorphous materials based pn diodes—the effect of degeneracy in organic polymers/molecules”, Y. Vaynzof, Y. Preezant and N.  Tessler, J. Appl. Phys. 8, 084503 (2009)

 

3) “How photoelectron spectroscopy and quantum chemical studies can help understanding the magnetic properties of molecules: an example from the class of Cu(II)−bis(oxamato) complexes”B. Bräuer, M. Grobosch, M. Knupfer, F. Weigend, Y. Vaynzof, A. Kahn, T. Rüffer and G. Salvan,  J. Phys. Chem. B, 113 10051 (2009)

 

2) “Electronic and magnetic properties of Ni nanoparticles embedded in various organic semiconductor matrices”, B. Bräuer, Y. Vaynzof, W. Zhao, A. Kahn, W. Li, D. R. T. Zahn, C. J. Fernández, C. Sangregorio and G. Salvan,  J. Phys. Chem. B, 113 4565 (2009)

 

2008

 

1) “Enhancement of electron injection into a light-emitting polymer from an aluminum oxide cathode modified by a self-assembled monolayer”, Y. Vaynzof, J. T. Dennes, J. Schwartz and A. Kahn, Appl. Phys. Lett. 93, 103305 (2008)

 
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