Electrical and Optical Properties of CaTi1−yFeyO3−δ Perovskite Films as Interlayers for Optoelectronic Applications
Abstract
:1. Introduction
2. Materials and Methods
2.1. Synthesis of CaTi1−yFeyO3−δ Perovskite Targets
2.2. Elaboration of CaTi1−yFeyO3−δ Perovskite Films
2.3. Electrical Characterizations
2.4. Optical Characterizations
2.5. Surface Potential Measurements
3. Results and Disssion
3.1. Electrical Characterization of CaTi1−yFeyO3−δ Perovskite Pellets
3.2. Characterization of CaTi1−yFeyO3−δ Perovskite Films Deposited by PLD
3.2.1. Electrical Characterizations of CaTi1−yFeyO3−δ Perovskite Films
3.2.2. Optical Characterization
4. Conclusions
Supplementary Materials
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Materials | Acronym | Sintering Conditions | Density of Starting Powders (Pycnometer, g·cm−3) | Relative Density of Sintered Pellets |
---|---|---|---|---|
CaTi0.7Fe0.3O3−δ | CTF73 | 1400 °C, 6 h, air | 3.92 | >98% |
CaTi0.5Fe0.5O3−δ | CTF55 | 1400 °C, 6 h, air | 3.85 | >98% |
CaTi0.3Fe0.7O3−δ | CTF37 | 1400 °C, 6 h, air | 3.83 | >98% |
Compositions | CTF73 Perovskite | CTF55 Perovskite | CTF37 Perovskite | ||
---|---|---|---|---|---|
Electrical conductivity (S·cm−1) | Pellets | 8.7·10−7 | 1.8·10−5 | 8·10−4 | |
PLD coating before annealing | Close to 200 nm (in thickness) | 2·10−10 | 5·10−10 | 8·10−10 | |
PLD coating after annealing under air at 500 °C during 4 h | Close to 200 nm (in thickness) | 7·10−9 | 4·10−7 | 1.3·10−8 |
Materials | Acronym | Work function (eV) | Gap (eV) |
---|---|---|---|
CaTi0.7Fe0.3O3−δ | CTF73 | 5 | 3.2 (indirect) |
CaTi0.5Fe0.5O3−δ | CTF55 | 5 | 3.4 (indirect) |
CaTi0.3Fe0.7O3−δ | CTF37 | 5 | 3.5 (indirect) |
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Yildirim, C.; Devoize, F.; Geffroy, P.-M.; Dumas-Bouchiat, F.; Bouclé, J.; Vedraine, S. Electrical and Optical Properties of CaTi1−yFeyO3−δ Perovskite Films as Interlayers for Optoelectronic Applications. Materials 2022, 15, 6533. https://doi.org/10.3390/ma15196533
Yildirim C, Devoize F, Geffroy P-M, Dumas-Bouchiat F, Bouclé J, Vedraine S. Electrical and Optical Properties of CaTi1−yFeyO3−δ Perovskite Films as Interlayers for Optoelectronic Applications. Materials. 2022; 15(19):6533. https://doi.org/10.3390/ma15196533
Chicago/Turabian StyleYildirim, Ceren, Fabien Devoize, Pierre-Marie Geffroy, Frédéric Dumas-Bouchiat, Johann Bouclé, and Sylvain Vedraine. 2022. "Electrical and Optical Properties of CaTi1−yFeyO3−δ Perovskite Films as Interlayers for Optoelectronic Applications" Materials 15, no. 19: 6533. https://doi.org/10.3390/ma15196533
APA StyleYildirim, C., Devoize, F., Geffroy, P. -M., Dumas-Bouchiat, F., Bouclé, J., & Vedraine, S. (2022). Electrical and Optical Properties of CaTi1−yFeyO3−δ Perovskite Films as Interlayers for Optoelectronic Applications. Materials, 15(19), 6533. https://doi.org/10.3390/ma15196533