References of "Berg, Dominik 40000049"
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See detailNanometre-scale optical property fluctuations in Cu2ZnSnS4 revealed by low temperature cathodoluminescence
Mendis, B. G.; Taylor, A. A.; Guennou, Maël et al

in Solar Energy Materials & Solar Cells (2018), 174

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See detailNanometre-scale optical property fluctuations in Cu2ZnSnS4 revealed by low temperature cathodoluminescence
Mendis, B. G.; Taylor, A. A.; Guennou, Mael et al

in Solar Energy Materials & Solar Cells (2017), 174

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See detailElectrochemical deposition as a unique solution processing method for insoluble organic optoelectronic materials†
Allwright, Emily; Berg, Dominik UL; Djemour, Rabie UL et al

in Journal of Materials Chemistry C (2014), 2

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See detailSimplified formation process for Cu2ZnSnS4-based solar cells
Berg, Dominik UL; Crossay, Alexandre UL; Guillot, Jérôme et al

in Thin Solid Films (2014), 573

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See detailKesterite Equilibrium Reaction and the Discrimination of Secondary Phases from Cu2ZnSnS4
Berg, Dominik UL

Doctoral thesis (2012)

Kesterite (Cu2ZnSnS4 - CZTS) based thin films are of increasing interest in the field of thin film photovoltaics. In recent developments, mixed S-Se kesterite devices have shown power conversion ... [more ▼]

Kesterite (Cu2ZnSnS4 - CZTS) based thin films are of increasing interest in the field of thin film photovoltaics. In recent developments, mixed S-Se kesterite devices have shown power conversion efficiencies of more than 10 %, but yet a major challenge is the fabrication of single phase kesterite material for high quality solar cells. In this thesis, two aspects of the growth of single phase kesterite films have been studied in more detail. The first part focuses on the identification of secondary phases (e.g. ZnS and Cu2SnS3) and their discrimination from CZTS. Hereby, grazing incidence X-ray diffraction and Raman spectroscopy measurements were used to quantitatively identify secondary phases on a mixed, CZTS containing sample. Experimental results show, that in a measurement series a minimum of 7 % of ZnS or 28 % of Cu2SnS3 must be present in order to be identifiable. The second part of this thesis focuses on finding a way to grow absorber layers for high quality CZTS thin film solar cells. Hereby, it could be shown that it is important for the quality of the absorber layer to keep the equilibrium position of the formation reaction of CZTS close to the CZTS side throughout the annealing. To achieve this, it is suggested to anneal the precursors in the presence of sulfur and tin sulfide. A study showed that this novel annealing strategy helped to improve the power conversion efficiency of a device based on a vapor-deposited precursor from 0 % to 6.1 %. Within this context, a novel route to form CZTS from a simplified, only Cu and Zn containing precursor, has been introduced and a model of the formation reaction of CZTS from this simplified precursor has been suggested. [less ▲]

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See detailA 3.2% efficient Kesterite device from electrodeposited stacked elemental layers
Scragg, Jonathan J.; Berg, Dominik UL; Dale, Phillip UL

in Journal of Electroanalytical Chemistry (2010), 646(1-2), 52-59

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See detailKesterite absorber layer uniformity from electrodeposited pre-cursors
Kurihara, Masato UL; Berg, Dominik UL; Fischer, Johannes UL et al

in Physica Status Solidi A. Applied Research (2009), 6(5), 1241-1244

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