November 2021

Impact of metallic potassium post-deposition treatment on epitaxial Cu(In,Ga)Se2

Evandro M. Lanzoni, Omar Ramirez, Himanshu Phirke, Amala Elizabeth, Harry Mönig and Alex Redinger

Thin Film Solids, 1, 139002

October 2021

Near surface defects: Cause of deficit between internal and external open-circuit voltage in solar cells

Mohit Sood, Aleksander Urbaniak, Christian Kameni Boumenou, Thomas Paul Weiss, Hossam Elanzeery, Finn Babbe, Florian Werner, Michele Melchiorre and Susanne Siebentritt

Progress in Photovoltaics 2021


Roadmap on organic–inorganic hybrid perovskite semiconductors and devices

Lukas Schmidt-Mende, Vladimir Dyakonov, Selina Olthof, Feray Ünlü, Khan Moritz Trong Lê, Sanjay Mathur, Andrei D. Karabanov, Doru C. Lupascu, Laura M. Herz, Alexander Hinderhofer, Frank Schreiber, Alexey Chernikov, David A. Egger, Oleksandra Shargaieva, Caterina Cocchi, Eva Unger, Michael Saliba, Mahdi Malekshahi Byranvand, Martin Kroll, Frederik Nehm, Karl Leo, Alex Redinger ... and Claudia Draxl

APL Materials 9, 109202 2021

September 2021

Nanoscale interfacial engineering enables highly stable and efficient perovskite photovoltaics

Anurag Krishna, Hong Zhang, Zhiwen Zhou, Thibaut Gallet, Mathias Dankl, Olivier Ouellette, Felix T. Eickemeyer, Fan Fu, Sandy Sanchez, Mounir Mensi, Shaik M. Zakeeruddin, Ursula Rothlisberger, G. N. Manjunatha Reddy, Alex Redinger, Michael Grätzel and  Anders Hagfeldt

Energy & Environmental Science, 2021,14, 5552-5562

June 2021

The impact of Kelvin probe force microscopy operation modes and environment on grain boundary band bending in perovskite and Cu(In,Ga)Se2 solar cells

Evandro M. Lanzoni, Thibaut Gallet, Conrad Spindler, Omar Ramirez, Chrisitan Kameni Boumenou, Susanne Siebentritt and Alex Redinger

Nano Energy, 88, 106270


January 2021

Co-evaporation of CH3NH3PbI3: How Growth Conditions Impact Phase Purity, Photostriction, and Intrinsic Stability

Thibaut Gallet, Ricardo G. Poeira, Evandro M. Lanzoni, Tobias Abzieher, Ulrich W. Paetzold and Alex Redinger

ACS Appl. Mater. Interfaces 2021, 13, 2, 2642–2653

December 2020

Electronic and compositional properties of the rear‐side of stoichiometric CuInSe2 absorbers

Christian Kameni Boumenou, Amala Elizabeth, Finn Babbe, Alice Debot, Harry Mönig and Alex Redinger

Prog Photovolt Res Appl. 2020; 1– 11

April 2020

Passivation of the CuInSe2 surface via cadmium pre-electrolyte treatment

Christian Kameni Boumenou, Finn Babbe, Amala Elizabeth, Michele Melchiorre, Conrad Spindler, Jérome Guillot, Harry Mönig, Susanne Siebentritt, and Alex Redinger

Phys. Rev. Materials 4 (4), 045405 

February 2020

Effects of Annealing and Light on Co-evaporated Methylammonium Lead Iodide Perovskites using Kelvin Probe Force Microscopy in Ultra-High Vacuum

Thibaut Gallet, Evandro M. Lanzoni and Alex Redinger

2019 IEEE 46th Photovoltaic Specialists Conference (PVSC), Chicago, IL, USA, 2019, pp. 1477-1482.

Surface characterization of epitaxial Cu-rich CuInSe2 absorbers

Evandro M. Lanzoni, Conrad Spindler, Omar Ramirez, Michele Melchiorre, Susanne Siebentritt and Alex Redinger

2019 IEEE 46th Photovoltaic Specialists Conference (PVSC), Chicago, IL, USA, 2019, pp. 2346-2350


September 2019 

Fermi-level pinning in methylammonium lead iodide perovskites

Thibaut Gallet, David Grabowski, Thomas Kirchartz and Alex Redinger

Nanoscale, 2019, 11, 16828-16836 

Physical routes for the synthesis of kesterite

T Ratz, G Brammertz, R Caballero, M León, S Canulescu, J Schou, L Gütay, D Pareek, T Taskesen, D-H Kim, J-K Kang, C Malerba, A Redinger, E Saucedo, B Shin, H Tampo, K Timmo, N D Nguyen and B Vermang

Journal of Physics: Energy, Volume 1, Number 4

July 2019

The impact of energy alignment and interfacial recombination on the internal and external open-circuit voltage of perovskite solar cell

Martin Stolterfoht, Pietro Caprioglio, Christian M. Wolff, José A. Márquez, Joleik Nordmann, Shanshan Zhang, Daniel Rothhardt, Ulrich Hörmann, Yohai Amir, Alex Redinger, Lukas Kegelmann, Fengshuo Zu, Steve Albrecht, Norbert Koch, Thomas Kirchartz, Michael Saliba, Thomas Unold and Dieter Neher

Energy Environ. Sci., 2019,12, 2778-2788

​March 2019

Variable chemical decoration of extended defects in Cu-poor Cu2ZnSnSe4thin films

Torsten Schwarz, Alex Redinger, Susanne Siebentritt, Zirong Peng, Baptiste Gault, Dierk Raabe and Pyuck-Pa Choi

Physical Review Materials 3, 035402

August 2018

Advanced characterization and in-situ growth monitoring of Cu(In,Ga)Se2 thin films and solar cells

D.Abou-Ras, M.Bär, R.Caballero, R.Gunder, C.Hages, M.D.Heinemann, C.A.Kaufmann, M.Krause, S.Levcenko, R.Mainz, J.Márquez, A.Nikolaeva, A.Redinger, N.Schäfer, S.Schorr, H.Stange, T.Unold and R.G.Wilks

Solar Energy, Volume 170, 102-112

January 2018

High surface recombination velocity limits Quasi-Fermi level splitting in kesterite absorbers

A.Redinger and T.Unold

Scientific Reports 8, 1874