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Karlsruhe Institute of Technology : Karlsruhe, Baden-Württemberg, DE

PD Dr. (Light Technology Institute (LTI))
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Michael Hetterich

Works (15)

Chemical phases in the solution-grown Zn(O,S) buffer of post-annealed Cu(In,Ga)Se2 solar cells investigated by transmission electron microscopy and electroreflectance

Journal of Applied Physics
2023-04-28 | Journal article
DOI: 10.1063/5.0139264
Contributors: Xiaowei Jin; Reinhard Schneider; Radian Popescu; Jasmin Seeger; Jonas Grutke; Benedikt Zerulla; Michael Hetterich; Dimitrios Hariskos; Wolfram Witte; Michael Powalla et al.
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Phase evolution during annealing of low-temperature co-evaporated precursors for CZTSe solar cell absorbers

Journal of Applied Physics
2021-04-21 | Journal article
DOI: 10.1063/5.0041320
Contributors: Lwitiko P. Mwakyusa; Xiaowei Jin; Erich Müller; Reinhard Schneider; Dagmar Gerthsen; Monika Rinke; Ulrich W. Paetzold; Bryce S. Richards; Michael Hetterich
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Cross-sectional Kelvin probe force microscopy on Cu(In,Ga)Se2 solar cells: Influence of RbF and KF post-deposition treatment on the surface potential of the absorber layer

Applied Physics Letters
2020-12-14 | Journal article
DOI: 10.1063/5.0032371
Contributors: Jasmin Seeger; Florian Wilhelmi; Jonas Schundelmeier; Setareh Zahedi-Azad; Roland Scheer; Kerstin Schmidt; Heinz Kalt; Michael Hetterich
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Hybrid chemical bath deposition-CdS/sputter-Zn(O,S) alternative buffer for Cu2ZnSn(S,Se)4 based solar cells

Journal of Applied Physics
2020-04-30 | Journal article
DOI: 10.1063/1.5142550
Contributors: Willi Kogler; Thomas Schnabel; Erik Ahlswede; Teoman Taskesen; Levent Gütay; Dirk Hauschild; Lothar Weinhardt; Clemens Heske; Jasmin Seeger; Michael Hetterich et al.
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CZTSe solar cells prepared by co-evaporation of multilayer Cu–Sn/Cu,Zn,Sn,Se/ZnSe/Cu,Zn,Sn,Se stacks

Physica Scripta
2019-10-01 | Journal article
DOI: 10.1088/1402-4896/ab2b16
Contributors: Lwitiko P Mwakyusa; Markus Neuwirth; Willi Kogler; Thomas Schnabel; Erik Ahlswede; Ulrich W Paetzold; Bryce S Richards; Michael Hetterich
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Efficient All-Evaporated pin-Perovskite Solar Cells: A Promising Approach Toward Industrial Large-Scale Fabrication

IEEE Journal of Photovoltaics
2019-09 | Journal article
DOI: 10.1109/JPHOTOV.2019.2920727
Contributors: Tobias Abzieher; Jonas A. Schwenzer; Somayeh Moghadamzadeh; Florian Sutterluti; Ihteaz M. Hossain; Michael Pfau; Erwin Lotter; Michael Hetterich; Bryce S. Richards; Uli Lemmer et al.
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Temperature-dependent studies of exciton binding energy and phase-transition suppression in (Cs,FA,MA)Pb(I,Br)3 perovskites

APL Materials
2019-03 | Journal article
DOI: 10.1063/1.5083792
Contributors: Fabian Ruf; Meltem F. Aygüler; Nadja Giesbrecht; Bettina Rendenbach; Alice Magin; Pablo Docampo; Heinz Kalt; Michael Hetterich
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Impact of the degree of Cu–Zn order in Cu2ZnSn(S,Se)4 solar cell absorbers on defect states and band tails

Applied Physics Letters
2018-07-16 | Journal article
DOI: 10.1063/1.5036622
Contributors: Mario Lang; Tobias Renz; Alexander Opolka; Christian Zimmermann; Christoph Krämmer; Markus Neuwirth; Heinz Kalt; Michael Hetterich
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Excitonic nature of optical transitions in electroabsorption spectra of perovskite solar cells

Applied Physics Letters
2018-02-19 | Journal article
DOI: 10.1063/1.5017943
Contributors: Fabian Ruf; Alice Magin; Moritz Schultes; Erik Ahlswede; Heinz Kalt; Michael Hetterich
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Additive‐Assisted Crystallization Dynamics in Two‐Step Fabrication of Perovskite Solar Cells

physica status solidi (a)
2017-12 | Journal article
DOI: 10.1002/pssa.201700509
Contributors: Tobias Abzieher; Florian Mathies; Michael Hetterich; Alexander Welle; Dagmar Gerthsen; Uli Lemmer; Ulrich W. Paetzold; Michael Powalla
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A multiple-selenization process for enhanced reproducibility of Cu2ZnSn(S,Se)4 solar cells

Applied Physics Letters
2016-12-05 | Journal article
DOI: 10.1063/1.4971362
Contributors: Markus Neuwirth; Huijuan Zhou; Thomas Schnabel; Erik Ahlswede; Heinz Kalt; Michael Hetterich
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Influence of the Cu Content in Cu2ZnSn(S,Se)4 solar cell absorbers on order-disorder related band gap changes

Applied Physics Letters
2016-10-03 | Journal article
DOI: 10.1063/1.4964346
Contributors: Mario Lang; Tobias Renz; Niklas Mathes; Markus Neuwirth; Thomas Schnabel; Heinz Kalt; Michael Hetterich
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Preparation of Cu2ZnSnSe4 solar cells by low-temperature co-evaporation and following selenization

Applied Physics Letters
2016-01-04 | Journal article
DOI: 10.1063/1.4939445
Contributors: Chao Gao; Thomas Schnabel; Tobias Abzieher; Erik Ahlswede; Michael Powalla; Michael Hetterich
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Diffuse electroreflectance of thin-film solar cells: Suppression of interference-related lineshape distortions

Applied Physics Letters
2015-11-30 | Journal article
DOI: 10.1063/1.4936649
Contributors: Christoph Krämmer; Christian Huber; Alex Redinger; David Sperber; Germain Rey; Susanne Siebentritt; Heinz Kalt; Michael Hetterich
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Reversible order-disorder related band gap changes in Cu2ZnSn(S,Se)4 via post-annealing of solar cells measured by electroreflectance

Applied Physics Letters
2014-12-29 | Journal article
DOI: 10.1063/1.4905351
Contributors: Christoph Krämmer; Christian Huber; Christian Zimmermann; Mario Lang; Thomas Schnabel; Tobias Abzieher; Erik Ahlswede; Heinz Kalt; Michael Hetterich
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