High-speed Electrodeposition of Copper-Tin-Zinc Stacks from Liquid Metal Salts for Cu2ZnSnSe4 Solar Cells

in Chemmical Communications (2017)

Quantification of surface ZnSe in Cu2ZnSnSe4-based solar cells by analysis of the spectral response

in Solar Energy Materials & Solar Cells (2014), 123

Absorber layers consisting of Cu2ZnSnSe4 (CZTSe) and surface ZnSe in variable ratios were prepared by selenization of electroplated Cu/Sn/Zn precursors and completed into full devices with up to 5.6 ... [more ▼]

Absorber layers consisting of Cu2ZnSnSe4 (CZTSe) and surface ZnSe in variable ratios were prepared by selenization of electroplated Cu/Sn/Zn precursors and completed into full devices with up to 5.6 % power conversion efficiency. The loss of short circuit current density for samples with increasing ZnSe content is consistent with an overall reduction of spectral response, pointing to a ZnSe current blocking behavior. A feature in the spectral response centered around 3 eV was identified and attributed to light absorption by ZnSe. A model is proposed to account for additional collection of the carriers generated underneath ZnSe capable of diffusing across to the space charge region. The model satisfactorily reproduces the shape of the spectral response and the estimated ZnSe surface coverage is in good qualitative agreement with analysis of the Raman spectral mapping. The model emphasizes the importance of the ZnSe morphology on the spectral response, and its consequences on the solar cell device performance. [less ▲]

Discrimination and determination of secondary phases from a Cu2ZnSnS4 phase using X-ray diffraction and Raman spectroscopy

in Thin Solid Films (2014), 569

Multiple phases of Cu2ZnSnSe4 detected by room temperature photoluminescence

in Journal of Applied Physics (2014), 116

Molecular beam epitaxy of Cu2ZnSnSe4 thin films grown on GaAs(001)

Scientific Conference (2013, June)

Direct Synthesis of Single-Phase p‑Type SnS by Electrodeposition from a Dicyanamide Ionic Liquid at High Temperature for Thin Film Solar Cells

in The Journal of Physical Chemistry (2013)

The three A symmetry Raman modes of kesterite in Cu2ZnSnSe4

in Optics Express (2013)

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

in Progress in Photovoltaics (2013)

Raman analysis of monoclinic Cu2SnS3 thin films

in Applied Physics Letters (2012), 100

Route Toward High-Efficiency Single-Phase Cu2ZnSn(S,Se)4 Thin-Film Solar Cells: Model Experiments and Literature Review

in IEEE Journal of Photovoltaics (2011)