Journal
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
Volume 226, Issue -, Pages 10-17Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.mseb.2017.08.027
Keywords
Sol-gel synthesis; Perovsldte oxide; Semiconductor; Band gap; Solar cell
Funding
- Department of Science and Technology (DST), Government of India [IF150220]
- Science and Engineering Research Board (SERB), Department of Science and Technology (DST) under NPDF scheme [PDF/2016/000069]
- DST-SERB [EMR/2016/001703]
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Inorganic lead free double perovskite oxides Ln(2)NiMnO(6) (Ln = La, Eu, Dy and Lu) with a variation of band gap from 1.08 to 1.19 eV have been synthesized for the photovoltaic application. These materials show very long carrier life-time (similar to 0.1 ms), much higher than that of halide perovskites which have carrier life-time in the low its range. The obtained carrier life-time is also very close to that of the silicon solar cell. In spite of being room temperature ferroic, these materials show robust photovoltaic performance, higher than the ferroic Pb(Zr,Ti)O-3, BiFeO3 and KBiFe2O5 solar cells. The obtained photovoltaic performance and the simplicity of large scale fabrication of Ln(2)NiMnO(6) solar cells may open a new avenue to develop cheap and eco-friendly solar cells for mass production.
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