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- W2995055792 startingPage "118526" @default.
- W2995055792 abstract "Tin chalcogenide nanocrystals (NCs) exhibit a wide absorption spectrum with excellent optoelectronic properties. Both Sn and Se are relatively less harmful and less expensive compared to heavy-metals and precious elements. However, it is still a challenge to directly synthesize SnSe NCs without using toxic and sensitive precursors. Here, we use a cation exchange assisted approach to synthesize SnSe NCs that are optically active in the near infrared (NIR). The SnSe NCs have a cuboid shape obtained thorough an orientated growth path. A typical indirect bandgap was found in these NCs ranging from 0.9 to 1.2 eV. As a proof-of-concept, the SnSe NCs were used as light absorbers for photoelectrochemical (PEC) hydrogen evolution, leading to a saturated photocurrent density of 8.2 mA/cm2, a record value for PEC devices using heavy-metal-free NIR NCs. Our results indicate that SnSe NCs of cuboid shape have great potential for use in emerging optoelectronic and photovoltaic devices." @default.
- W2995055792 created "2019-12-26" @default.
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- W2995055792 date "2020-05-01" @default.
- W2995055792 modified "2023-09-25" @default.
- W2995055792 title "Efficient and stable hydrogen evolution based on earth-abundant SnSe nanocrystals" @default.
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- W2995055792 doi "https://doi.org/10.1016/j.apcatb.2019.118526" @default.
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