Selective removal of potassium from K4In4Sb6 via laser ablation/ionization

Valentin Panayotov, Kyle Hamar, Teresa L.T. Birdwhistell, Clarence Red, Jennifer Dillon, David Dennison, Anthony P. Barnes, Brent Koplitz

Research output: Contribution to journalArticle

3 Scopus citations


Results are reported on the Zintl phase material, K4In4Sb6, with respect to laser ablation and subsequent laser ionization/removal processes. A 308 nm laser pulse is used to ablate the Zintl compound, while a second laser ionizes ejected species within the extraction region of a time-of-flight mass spectrometer. With the second laser operating at 248 nm, selective ionization and removal of the potassium is clearly demonstrated. Such a strategy takes advantage of the different ionization potentials of K, In, and Sb, and implications for possible applications of this research to film growth are discussed.

Original languageEnglish (US)
Number of pages1
JournalApplied Physics Letters
StatePublished - 1995

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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    Panayotov, V., Hamar, K., Birdwhistell, T. L. T., Red, C., Dillon, J., Dennison, D., Barnes, A. P., & Koplitz, B. (1995). Selective removal of potassium from K4In4Sb6 via laser ablation/ionization. Applied Physics Letters.