A
Alessandro Sepe
Researcher at University of Fribourg
Publications - 38
Citations - 1975
Alessandro Sepe is an academic researcher from University of Fribourg. The author has contributed to research in topics: Thin film & Grazing-incidence small-angle scattering. The author has an hindex of 19, co-authored 38 publications receiving 1673 citations. Previous affiliations of Alessandro Sepe include University of Cambridge & Chinese Academy of Sciences.
Papers
More filters
Journal ArticleDOI
Performance and Stability Enhancement of Dye‐Sensitized and Perovskite Solar Cells by Al Doping of TiO2
Sandeep Pathak,Sandeep Pathak,Antonio Abate,P. Ruckdeschel,Bart Roose,Karl C. Gödel,Yana Vaynzof,Aditya Santhala,Shun-Ichiro Watanabe,Derek J. Hollman,Nakita K. Noel,Alessandro Sepe,Ullrich Wiesner,Richard H. Friend,Henry J. Snaith,Ullrich Steiner +15 more
TL;DR: In this article, the authors show that the doping of TiO 2 with aluminium has a striking impact upon the density of sub-gap states and enhances the conductivity by orders of magnitude.
Journal ArticleDOI
2D coherent charge transport in highly ordered conducting polymers doped by solid state diffusion
Keehoon Kang,Shun Watanabe,Shun Watanabe,Shun Watanabe,Katharina Broch,Alessandro Sepe,Adam J. Brown,Iyad Nasrallah,Mark Nikolka,Zhuping Fei,Martin Heeney,Daisuke Matsumoto,Kazuhiro Marumoto,Hisaaki Tanaka,Shin-ichi Kuroda,Henning Sirringhaus +15 more
TL;DR: It is shown that in the highly ordered lamellar microstructure of a regioregular thiophene-based conjugated polymer, a small-molecule p-type dopant can be incorporated by solid state diffusion into the layers of solubilizing side chains without disrupting the conjugate layers.
Journal ArticleDOI
Atmospheric influence upon crystallization and electronic disorder and its impact on the photophysical properties of organic-inorganic perovskite solar cells.
Sandeep Pathak,Sandeep Pathak,Alessandro Sepe,Aditya Sadhanala,Felix Deschler,Amir A. Haghighirad,Nobuya Sakai,Karl C. Goedel,Samuel D. Stranks,Nakita K. Noel,Michael Price,Sven Hüttner,Nicholas Hawkins,Richard H. Friend,Ullrich Steiner,Henry J. Snaith +15 more
TL;DR: It is found that the crystal formation is kinetically driven by the annealing atmosphere, time and temperature, which indicates a critical impact of the atmosphere upon crystallization and the ultimate device performance.
Journal ArticleDOI
Electronic Structure of Low-Temperature Solution-Processed Amorphous Metal Oxide Semiconductors for Thin-Film Transistor Applications.
Josephine Socratous,Kulbinder K. Banger,Yana Vaynzof,Aditya Sadhanala,Adam D. Brown,Alessandro Sepe,Ullrich Steiner,Henning Sirringhaus +7 more
TL;DR: It is demonstrated that good devices can only be achieved in low temperature, solution-processed oxides if a significant concentration of acceptor states below the conduction band minimum is compensated or passivated by shallow hydrogen and oxygen vacancy-induced donor levels.
Journal ArticleDOI
Crystallization-Induced 10-nm Structure Formation in P3HT/PCBM Blends
Peter Kohn,Zhuxia Rong,Kai H. Scherer,Alessandro Sepe,Michael Sommer,Peter Müller-Buschbaum,Richard H. Friend,Ullrich Steiner,Sven Hüttner +8 more
TL;DR: In this paper, the loading of PCBM in regioregular and regiorandom P3HT (poly(3-hexylthiophene-2,5-diyl) was systematically investigated.