Solvent influenced synthesis of single-phase SnS 2 nanosheets for solution-processed photodiode fabrication

The effect of variant high boiling point solvent combinations in the synthesis and photo-sensing characteristics of tin disulfide (SnS 2 ) thin nanosheets were investigated. Solvent dependent single-phase formation was observed by powder X-ray diffractometry (XRD), and results were verified with Ram...

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Veröffentlicht in:CrystEngComm 2020-01, Vol.22 (3), p.525-533
Hauptverfasser: Thangaraju, D., Marnadu, R., Santhana, V., Durairajan, A., Kathirvel, P., Chandrasekaran, J., Jayakumar, S., Valente, M. A., Greenidge, Darius C.
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container_issue 3
container_start_page 525
container_title CrystEngComm
container_volume 22
creator Thangaraju, D.
Marnadu, R.
Santhana, V.
Durairajan, A.
Kathirvel, P.
Chandrasekaran, J.
Jayakumar, S.
Valente, M. A.
Greenidge, Darius C.
description The effect of variant high boiling point solvent combinations in the synthesis and photo-sensing characteristics of tin disulfide (SnS 2 ) thin nanosheets were investigated. Solvent dependent single-phase formation was observed by powder X-ray diffractometry (XRD), and results were verified with Raman spectroscopy measurements. Particles synthesized with only oleylamine show a mixed-phase, and two other solvent combinations such as oleylamine + oleic acid + n -octadecene, and oleylamine + oleic acid, show single-phase 2H–SnS 2 , without phase contamination. Scanning and transmission electron microscopes were used to verify the orbicular and hexagonal shape of synthesized SnS 2 nanosheets. Well-characterized samples were employed to fabricate heterojunction photosensitive diodes using a p-type silicon substrate. Light-responsive measurement results of fabricated diodes indicate that the oleylamine + oleic acid synthesized sample show very high light-sensitivity, and the fill factor value of a fabricated diode is closer to the ideal diode.
doi_str_mv 10.1039/C9CE01417A
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title Solvent influenced synthesis of single-phase SnS 2 nanosheets for solution-processed photodiode fabrication
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