Point defects, compositional fluctuations, and secondary phases in non-stoichiometric kesterites
Abstract
The efficiency of kesterite-based solar cells is limited by various non-ideal recombination paths, amongst other by a high density of defect states and by the presence of binary or ternary secondary phases within the absorber layer. Pronounced compositional variations and secondary phase segregations are indeed typical features of non-stoichiometric kesterite materials. Certainly kesterite-based thin film solar cells with an off-stoichiometric absorber layer composition, especially Cu-poor/Zn-rich, achieved the highest efficiencies, but deviations from the stoichiometric composition lead to the formation of intrinsic point defects (vacancies, anti-sites, and interstitials) in the kesterite-type material. In addition, a non-stoichiometric composition is usually associated with the formation of undesirable side-phase (secondary phases). Thus the correlation between off-stoichiometry and intrinsic point defects as well as the identification and quantification of secondary phases and compositional fluctuations in non-stoichiometric kesterite materials is of great importance for the understanding and rational design of solar cell devices. Here, this paper summarizes the latest achievements in the investigation of identification and quantification of intrinsic point defects, compositional fluctuations and secondary phases in non-stoichiometric kesterite-type materials.
- Authors:
-
[1];
[2];
[3];
[4];
[7];
[8];
[9]
- Helmholtz-Zentrum Berlin fuer Materialien und Energie, Berlin (Germany); Freie Univ. Berlin (Germany)
- Helmholtz-Zentrum Berlin fuer Materialien und Energie, Berlin (Germany)
- Catalonia Inst. for Energy Research (IREC), Saint Adria de Besos (Spain); Inst. of Applied Physics, Chisinau (Moldova)
- Catalonia Inst. for Energy Research (IREC), Saint Adria de Besos (Spain); National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States); National Renewable Energy Lab. (NREL), Golden, CO (United States)
- Catalonia Inst. for Energy Research (IREC), Saint Adria de Besos (Spain); Univ. de Barcelona, Barcelona (Spain)
- Catalonia Inst. for Energy Research (IREC), Saint Adria de Besos (Spain)
- Leipzig Univ. (Germany)
- Ewha Womans Univ., Seoul (Korea)
- Univ. Autonóma de Madrid (Spain)
- Publication Date:
- Research Org.:
- National Renewable Energy Laboratory (NREL), Golden, CO (United States)
- Sponsoring Org.:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Sustainable Transportation Office. Hydrogen Fuel Cell Technologies Office (HFTO); Spanish Ministry of Science; Innovation and Universities by WINCOST; European Regional Development Funds
- OSTI Identifier:
- 1571901
- Report Number(s):
- NREL/JA-5900-75240
Journal ID: ISSN 2515-7655
- Grant/Contract Number:
- AC36-08GO28308; H2020-MSCA-RISE-2017-777968; ENE2016-80788-C5-1-R
- Resource Type:
- Accepted Manuscript
- Journal Name:
- JPhys Energy
- Additional Journal Information:
- Journal Volume: 2; Journal Issue: 1; Journal ID: ISSN 2515-7655
- Publisher:
- IOP Publishing
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 14 SOLAR ENERGY; 36 MATERIALS SCIENCE; kesterites; solar cells; defect states; point defects; stoichiometry deviations; secondary phases; diffraction; Raman spectroscopy; Kelvin probe forcemicroscopy
Citation Formats
Schorr, Susan, Gurieva, Galina, Guc, Maxim, Dimitrievska, Mirjana, Pérez-Rodríguez, Alejandro, Izquierdo-Roca, Victor, Schnohr, Claudia S., Kim, Juran, Jo, William, and Merino, José Manuel. Point defects, compositional fluctuations, and secondary phases in non-stoichiometric kesterites. United States: N. p., 2019.
Web. doi:10.1088/2515-7655/ab4a25.
Schorr, Susan, Gurieva, Galina, Guc, Maxim, Dimitrievska, Mirjana, Pérez-Rodríguez, Alejandro, Izquierdo-Roca, Victor, Schnohr, Claudia S., Kim, Juran, Jo, William, & Merino, José Manuel. Point defects, compositional fluctuations, and secondary phases in non-stoichiometric kesterites. United States. https://doi.org/10.1088/2515-7655/ab4a25
Schorr, Susan, Gurieva, Galina, Guc, Maxim, Dimitrievska, Mirjana, Pérez-Rodríguez, Alejandro, Izquierdo-Roca, Victor, Schnohr, Claudia S., Kim, Juran, Jo, William, and Merino, José Manuel. Tue .
"Point defects, compositional fluctuations, and secondary phases in non-stoichiometric kesterites". United States. https://doi.org/10.1088/2515-7655/ab4a25. https://www.osti.gov/servlets/purl/1571901.
@article{osti_1571901,
title = {Point defects, compositional fluctuations, and secondary phases in non-stoichiometric kesterites},
author = {Schorr, Susan and Gurieva, Galina and Guc, Maxim and Dimitrievska, Mirjana and Pérez-Rodríguez, Alejandro and Izquierdo-Roca, Victor and Schnohr, Claudia S. and Kim, Juran and Jo, William and Merino, José Manuel},
abstractNote = {The efficiency of kesterite-based solar cells is limited by various non-ideal recombination paths, amongst other by a high density of defect states and by the presence of binary or ternary secondary phases within the absorber layer. Pronounced compositional variations and secondary phase segregations are indeed typical features of non-stoichiometric kesterite materials. Certainly kesterite-based thin film solar cells with an off-stoichiometric absorber layer composition, especially Cu-poor/Zn-rich, achieved the highest efficiencies, but deviations from the stoichiometric composition lead to the formation of intrinsic point defects (vacancies, anti-sites, and interstitials) in the kesterite-type material. In addition, a non-stoichiometric composition is usually associated with the formation of undesirable side-phase (secondary phases). Thus the correlation between off-stoichiometry and intrinsic point defects as well as the identification and quantification of secondary phases and compositional fluctuations in non-stoichiometric kesterite materials is of great importance for the understanding and rational design of solar cell devices. Here, this paper summarizes the latest achievements in the investigation of identification and quantification of intrinsic point defects, compositional fluctuations and secondary phases in non-stoichiometric kesterite-type materials.},
doi = {10.1088/2515-7655/ab4a25},
journal = {JPhys Energy},
number = 1,
volume = 2,
place = {United States},
year = {Tue Dec 10 00:00:00 EST 2019},
month = {Tue Dec 10 00:00:00 EST 2019}
}
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Works referencing / citing this record:
Atomic Scale Structure of (Ag,Cu)$_{2}$ZnSnSe$_{4}$ and Cu$_{2}$Zn(Sn,Ge)Se$_{4}$ Kesterite Thin Films
text, January 2021
- Ritter, Konrad; Gurieva, Galina; Eckner, Stefanie
- Deutsches Elektronen-Synchrotron, DESY, Hamburg