TY - JOUR
T1 - Up-Conversion in Perovskite Strontium Stannate Nanocrystal Whiskers
AU - Kumar, Ashok
AU - Sahrawat, Vikas
AU - Kumar, Astakala Anil
AU - Priya, Shashank
N1 - Funding Information:
This work was supported in part by SERB, Government of India (SB/FTP/ETA-243/2012, 2013-2016).
Publisher Copyright:
© 2017, The Indian Institute of Metals - IIM.
PY - 2017/4/1
Y1 - 2017/4/1
N2 - We report a simple, eco-friendly facile wet chemical route for the synthesis of pristine and rare–earth metal co-doped (Er/Yb, 10/90, 15/85, 20/80) nano-crystalline, strontium stannate (SrSnO3) whiskers. It is n-type wide bandgap (~4.1 eV) orthorhombic perovskite semiconductor at room temperature, and reveals increase in band gap with the increase in Er/Yb content (from 4.10 to 4.23, 4.30 to 4.39 eV). The samples exhibited strong emission around 365 nm following band-edge excitation by the wavelength of 290 nm. Further, strong up-conversion emission was observed in visible range at the excitation of wavelength 980 nm. The resistivity values were found to decrease with increase in the dopants Er/Yb concentration due to enhancement of charge carriers.
AB - We report a simple, eco-friendly facile wet chemical route for the synthesis of pristine and rare–earth metal co-doped (Er/Yb, 10/90, 15/85, 20/80) nano-crystalline, strontium stannate (SrSnO3) whiskers. It is n-type wide bandgap (~4.1 eV) orthorhombic perovskite semiconductor at room temperature, and reveals increase in band gap with the increase in Er/Yb content (from 4.10 to 4.23, 4.30 to 4.39 eV). The samples exhibited strong emission around 365 nm following band-edge excitation by the wavelength of 290 nm. Further, strong up-conversion emission was observed in visible range at the excitation of wavelength 980 nm. The resistivity values were found to decrease with increase in the dopants Er/Yb concentration due to enhancement of charge carriers.
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U2 - 10.1007/s12666-017-1051-8
DO - 10.1007/s12666-017-1051-8
M3 - Article
AN - SCOPUS:85011702265
SN - 0972-2815
VL - 70
SP - 573
EP - 579
JO - Transactions of the Indian Institute of Metals
JF - Transactions of the Indian Institute of Metals
IS - 3
ER -