Detection of a MoSe2 secondary phase layer in CZTSe by spectroscopic ellipsometry

in JOURNAL OF APPLIED PHYSICS (2015), 118

Detection of Cu2Zn5SnSe8 and Cu2Zn6SnSe9 phases in co-evaporated Cu2ZnSnSe4 thin-films

in Applied Physics Letters (2015), 107

Multiple phases of Cu2ZnSnSe4 detected by room temperature photoluminescence

in Journal of Applied Physics (2014), 116

Influence of S/Se ratio on series resistance and on dominant recombination pathway in Cu2ZnSn(SSe)4 thin film solar cells

in Thin Solid Films (2013), 535

Cu2ZnSnSe4 thin film solar cells produced via coevaporation and annealing including a SnSe2 capping layer

in Progress in Photovoltaics (2013), 22(1), 51-57

Cu2ZnSnSe4 (CZTSe) thin film solar cells have been produced via co-evaporation followed by a high-temperature annealing. In order to reduce the decomposition of the CZTSe, a SnSe2 capping layer has been ... [more ▼]

Cu2ZnSnSe4 (CZTSe) thin film solar cells have been produced via co-evaporation followed by a high-temperature annealing. In order to reduce the decomposition of the CZTSe, a SnSe2 capping layer has been evaporated onto the absorber prior to the high-temperature treatment. This eliminates the Sn losses due to SnSe evaporation. A solar cell efficiency of 5.1 could be achieved with this method. Moreover, the device does not suffer from high series resistance, and the dominant recombination pathway is situated in the absorber bulk. Finally different illumination conditions (white light, red light, and yellow light) reveal a strong loss in fill factor if no carriers are generated in the CdS buffer layer. This effect, known as red-kink effect, has also been observed in the closely related Cu(In,Ga)Se-2 thin film solar cells. Copyright (c) 2013 John Wiley Sons, Ltd. [less ▲]

Cu-Rich Precursors Improve Kesterite Solar Cells

in Advanced Energy Materials (2013), 4

Admittance spectroscopy in kesterite solar cells: Defect signal or circuit response

in Applied Physics Letters (2013)

Detecting ZnSe secondary phase in Cu2ZnSnSe4 by room temperature photoluminescence

in Applied Physics Letters (2013), 102