Wolfram Hempel

The deposition of hard crystalline Al2O3 layers by means of bipolar pulsed magnetron sputtering

Fred Fietzke, K. Goedicke, Wolfram Hempel · Surface and Coatings Technology · 1996 · 79 citations

Materials Science, Materials Engineering, Aluminium Nitride +6

CIGS Cells and Modules With High Efficiency on Glass and Flexible Substrates

Michael Powalla, Wolfram Witte, Philip Jackson et al. · IEEE Journal of Photovoltaics · 2013 · 61 citations

Engineering, Flexible Substrates, Photovoltaic Devices +27

Diffusion of Rb in polycrystalline Cu(In,Ga)Se2 layers and effect of Rb on solar cell parameters of Cu(In,Ga)Se2 thin-film solar cells

Roland Wüerz, Wolfram Hempel, Philip Jackson · Journal of Applied Physics · 2018 · 58 citations · Full text

Polycrystalline Cu, Engineering, Chemistry +17

Method for a High-Rate Solution Deposition of Zn(O,S) Buffer Layer for High-Efficiency Cu(In,Ga)Se₂-Based Solar Cells

Dimitrios Hariskos, Philip Jackson, Wolfram Hempel et al. · IEEE Journal of Photovoltaics · 2016 · 39 citations

Engineering, Buffer Layer, Solid-state Chemistry +18

An Integrated Deposition and Passivation Strategy for Controlled Crystallization of 2D/3D Halide Perovskite Films

Tim Kodalle, Mahdi Malekshahi Byranvand, Meredith Goudreau et al. · Advanced Materials · 2024 · 35 citations · Full text