Phase change properties are of great significance recently because of both interests to fundamental science as well as new potential applications. In particular, how to invoke a phase transition in novel ways is an area of active research. Recently, VO2 nanocrystals were found to undergo dramatic changes in their physical properties upon application of electrochemical bias. Here, we are looking into phase transitions in nanocrystals of silver selenide (Ag2Se). It has already been noted that the phase transition temperature of silver selenide nanoparticles is inversely related to size, and now we are investigating if the phase transition of silver selenide can be affected by electrochemistry. To accomplish this we are utilizing a unique in situ measurement technique which allows for temperature modification, acts as an electrochemical cell, and can gather UV-Vis spectroscopy data simultaneously. This technique allows us to evaluate the physical changes of the Ag2Se nanocrystals under a variety of electrochemical conditions.

Electrochemical control of phase change properties in nanoparticles of silver selenide

253rd National Meeting (2017)

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