TY - JOUR
T1 - A facile co-precipitation method for synthesis of Zn doped BaSnO3 nanoparticles for photovoltaic application
AU - Dileep K, Reshma
AU - Rajbhar, Manoj Kumar
AU - Ashina, A.
AU - Ramasamy, Easwaramoorthi
AU - Mallick, Sudhanshu
AU - Rao, Tata Narsinga
AU - Veerappan, Ganapathy
N1 - Funding Information:
Various characterizations carried out to study the effect of doping and device performance are listed below. The supplementary information provides the supporting characterizations such as; S1-EDS analysis and S2-FTIR spectra.Dr. G. V and R.D.K acknowledge the Department of Science and Technology, New Delhi, India for financial support through DST-INSPIRE Faculty award (IFA 14-MS-28), DST-SYST (SP/YO/012/2017 (G)) and TRC (AI/1/65/ARCI/2014). G. V. and co-authors extend their acknowledgment to the Director, ARCI.
Funding Information:
Dr. G. V and R.D.K acknowledge the Department of Science and Technology , New Delhi, India for financial support through DST-INSPIRE Faculty award ( IFA 14-MS-28), DST-SYST ( SP/YO/012/2017 (G) ) and TRC ( AI/1/65/ARCI/2014 ). G. V. and co-authors extend their acknowledgment to the Director, ARCI.
Publisher Copyright:
© 2020 Elsevier B.V.
PY - 2021/1/15
Y1 - 2021/1/15
N2 - BaSnO3 (BSO) is a widely used electron transporting layer (ETL) in solar cells due to its wide bandgap and high mobility. BSO was modified for better optical and electronic properties by doping Zn atoms by a facile co-precipitation method. The alteration in structural, optical, and electronic properties of BSO on doping with different concentrations of Zn (0.5 mM, 1 mM) was studied. The Optimum bandgap of Zn doped BSO samples and high optical transparency makes it a suitable ETL in perovskite solar cells (PSCs). PSCs were fabricated using BSO, 0.5 mM Zn–BSO (0.5BSO), and 1.0 mM Zn–BSO (1BSO) as an electron transport layer (ETL), vapor-deposited MaPbI3 as the absorber, and CuSCN as the hole transporting material to demonstrate the functioning of the Zn doped BaSnO3 as ETL in PSCs. BSO exhibited a bandgap of 3.36eV, whereas 0.5 mM Zn–BSO and 0.1 mM Zn–BSO exhibited 3.44eV and 3.72eV, respectively, and the in the conduction band edges were analyzed by Mott-Schottky analysis. The particle sizes increased from 9.7 nm to 11.7 nm with increment in doping concentration. The fabricated devices yield a promising power conversion efficiency (PCE) of 3.9% with an open-circuit voltage (VOC) of 0.80 V and current density (JSC) of 9.8 mA/cm2 for 0.5 mM Zn–BSO samples. In contrast, the PSCs fabricated with BSO showcased lesser PCE (3.0% with VOC of 0.74 V and JSC of 8.4 mA/cm2). The electron lifetime was calculated using impedance spectroscopy, and 0.5BSO exhibited a higher electron lifetime (9.3 × 10−7 ns) when compared to BSO and 1.0BSO, indicating reduced recombination and better charge extraction.
AB - BaSnO3 (BSO) is a widely used electron transporting layer (ETL) in solar cells due to its wide bandgap and high mobility. BSO was modified for better optical and electronic properties by doping Zn atoms by a facile co-precipitation method. The alteration in structural, optical, and electronic properties of BSO on doping with different concentrations of Zn (0.5 mM, 1 mM) was studied. The Optimum bandgap of Zn doped BSO samples and high optical transparency makes it a suitable ETL in perovskite solar cells (PSCs). PSCs were fabricated using BSO, 0.5 mM Zn–BSO (0.5BSO), and 1.0 mM Zn–BSO (1BSO) as an electron transport layer (ETL), vapor-deposited MaPbI3 as the absorber, and CuSCN as the hole transporting material to demonstrate the functioning of the Zn doped BaSnO3 as ETL in PSCs. BSO exhibited a bandgap of 3.36eV, whereas 0.5 mM Zn–BSO and 0.1 mM Zn–BSO exhibited 3.44eV and 3.72eV, respectively, and the in the conduction band edges were analyzed by Mott-Schottky analysis. The particle sizes increased from 9.7 nm to 11.7 nm with increment in doping concentration. The fabricated devices yield a promising power conversion efficiency (PCE) of 3.9% with an open-circuit voltage (VOC) of 0.80 V and current density (JSC) of 9.8 mA/cm2 for 0.5 mM Zn–BSO samples. In contrast, the PSCs fabricated with BSO showcased lesser PCE (3.0% with VOC of 0.74 V and JSC of 8.4 mA/cm2). The electron lifetime was calculated using impedance spectroscopy, and 0.5BSO exhibited a higher electron lifetime (9.3 × 10−7 ns) when compared to BSO and 1.0BSO, indicating reduced recombination and better charge extraction.
KW - 9–10 nm crystallite Size
KW - BaSnO
KW - Co-precipitation
KW - Energy level alteration
KW - Inorganic HTM
KW - Zn doped BaSnO
UR - http://www.scopus.com/inward/record.url?scp=85096362804&partnerID=8YFLogxK
U2 - 10.1016/j.matchemphys.2020.123939
DO - 10.1016/j.matchemphys.2020.123939
M3 - Article
AN - SCOPUS:85096362804
SN - 0254-0584
VL - 258
JO - Materials Chemistry and Physics
JF - Materials Chemistry and Physics
M1 - 123939
ER -
