In-depth resolved Raman scattering analysis for the identification of secondary phases: Characterization of Cu2ZnSnS4 layers for solar cell applications
By X. Fontané, L. Calvo‐Barrio, V. Izquierdo‐Roca, E. Saucedo, A. Pérez‐Rodríguez, J. Morante, D. Berg, P. Dale, S. Siebentritt. 2011
322 citations recorded by the source corpus.
This work reports the in-depth resolved Raman scattering analysis with different excitation wavelengths of Cu2ZnSnS4 layers. Secondary phases constitute a central problem in this material, particularly since they cannot be distinguished by x-ray diffraction. Raman spectra measured with 325 nm excitation light after sputtering the layers to different depths show peaks that are not detectable by excitation in the visible. These are identified with Cu3SnS4 modes at the surface region while spectra measured close to the back region show peaks from ZnS and MoS2. Observation of ZnS is enhanced by resonant excitation conditions achieved when working with UV excitation.
Subfields: Electrical and Electronic Engineering, Materials Chemistry
View Paper: https://www.semanticscholar.org/paper/8f893534f0f1690237748394353978b0c3e0302a
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In Electrical and Electronic Engineering
In Materials Chemistry
Citations in the corpus
- On the origin of band-tails in kesterite (2017, unknown): “be responsible for the increased recombination of kesterite-based devices: those related to the hetero-junction partner and buffer [18,19], to non-ohmic contacts [20,21], grain-boundaries [22,23] or secondary phases [24].”
- Rapid annealing of reactively sputtered precursors for Cu2ZnSnS4 solar cells (2014, background): “A pre-resonant excitation of ZnS that takes place under these excitation conditions should cause a strong increase in the intensity of the main vibrational mode from ZnS (at 348 cm (1)) [17], as well as the appearance of peaks at 696 cm 1 and 1045 cm 1 that are identified with second-order and third”