Nonphotochemical laser-induced nucleation in levitated supersaturated aqueous potassium chloride microdroplets

Ke Fang; Stephen Arnold; Bruce A. Garetz

doi:10.1021/cg5004319

Nonphotochemical laser-induced nucleation in levitated supersaturated aqueous potassium chloride microdroplets

Ke Fang, Stephen Arnold, Bruce A. Garetz

Research output: Contribution to journal › Article › peer-review

Abstract

We have observed nonphotochemical laser-induced nucleation (NPLIN) in levitated 8 pL microdroplets of supersaturated aqueous potassium chloride irradiated with nanosecond pulses of 532 nm light. A much higher supersaturation ratio S of 1.20 was required to observe NPLIN in a microdroplet, compared to the value of 1.06 for bulk solutions, attributed to a 40-million-fold lower nucleation rate in a microdroplet at S = 1.06 as a result of its much smaller volume. This finding has application to high spatial and temporal resolution pump-probe studies of nucleation in a containerless environment.

Original language	English (US)
Pages (from-to)	2685-2688
Number of pages	4
Journal	Crystal Growth and Design
Volume	14
Issue number	5
DOIs	https://doi.org/10.1021/cg5004319
State	Published - May 7 2014

ASJC Scopus subject areas

General Chemistry
General Materials Science
Condensed Matter Physics

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10.1021/cg5004319

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title = "Nonphotochemical laser-induced nucleation in levitated supersaturated aqueous potassium chloride microdroplets",

abstract = "We have observed nonphotochemical laser-induced nucleation (NPLIN) in levitated 8 pL microdroplets of supersaturated aqueous potassium chloride irradiated with nanosecond pulses of 532 nm light. A much higher supersaturation ratio S of 1.20 was required to observe NPLIN in a microdroplet, compared to the value of 1.06 for bulk solutions, attributed to a 40-million-fold lower nucleation rate in a microdroplet at S = 1.06 as a result of its much smaller volume. This finding has application to high spatial and temporal resolution pump-probe studies of nucleation in a containerless environment.",

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AU - Arnold, Stephen

AU - Garetz, Bruce A.

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N2 - We have observed nonphotochemical laser-induced nucleation (NPLIN) in levitated 8 pL microdroplets of supersaturated aqueous potassium chloride irradiated with nanosecond pulses of 532 nm light. A much higher supersaturation ratio S of 1.20 was required to observe NPLIN in a microdroplet, compared to the value of 1.06 for bulk solutions, attributed to a 40-million-fold lower nucleation rate in a microdroplet at S = 1.06 as a result of its much smaller volume. This finding has application to high spatial and temporal resolution pump-probe studies of nucleation in a containerless environment.

AB - We have observed nonphotochemical laser-induced nucleation (NPLIN) in levitated 8 pL microdroplets of supersaturated aqueous potassium chloride irradiated with nanosecond pulses of 532 nm light. A much higher supersaturation ratio S of 1.20 was required to observe NPLIN in a microdroplet, compared to the value of 1.06 for bulk solutions, attributed to a 40-million-fold lower nucleation rate in a microdroplet at S = 1.06 as a result of its much smaller volume. This finding has application to high spatial and temporal resolution pump-probe studies of nucleation in a containerless environment.

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Nonphotochemical laser-induced nucleation in levitated supersaturated aqueous potassium chloride microdroplets

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