Ultraviolet and infrared absorption spectra of promising organoarsine photochemical vapor deposition reagents

Speckman, Donna M.

doi:10.1016/0022-0248(92)90113-w

Cited by 6 publications

(1 citation statement)

References 29 publications

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“…However, an indication of the ranges of vibrational frequencies for each type of hydride can be obtained by comparison to the infrared spectra of gaseous arsenic compounds. [44][45][46] Arsine, ethylarsine, tertiarybutylarsine, and diethylarsine exhibit As-H stretching vibrations in the following ranges: AsH 3 , 2123 and 2116 cm Ϫ1 ; EtAsH 2 , 2107-2086 cm Ϫ1 ; tBuAsH 2 , 2126-2088 cm Ϫ1 ; and Et 2 AsH, 2080 cm Ϫ1 . In addition, in the arsinetrimethylgallium adduct, the As-H vibrations are shifted 40 cm Ϫ1 higher in frequency compared to arsine.…”

Section: A Arsenic-rich Surfaces C"4؋4… and "2؋4…mentioning

confidence: 99%

Hydrogen adsorption on GaAs (001) reconstructions

Hicks

et al. 1999

The Journal of Chemical Physics

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Hydrogen adsorption on the c(4ϫ4), ͑2ϫ4͒, ͑2ϫ6͒, and ͑4ϫ2͒ reconstructions of GaAs ͑001͒ have been characterized by internal-reflection infrared spectroscopy. The infrared spectra contain up to 15 bands due to the stretching vibrations of arsenic hydrides ͑2150-1950 cm Ϫ1 ͒, terminal gallium hydrides ͑1950-1800 cm Ϫ1 ͒, and bridging gallium hydrides ͑1800-950 cm Ϫ1 ͒. These features arise from hydrogen adsorption on arsenic and gallium dimers, and second-layer arsenic and gallium atoms. The large number of peaks observed indicates that the surface atoms exist in a variety of different chemical environments.

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Section: A Arsenic-rich Surfaces C"4؋4… and "2؋4…mentioning

confidence: 99%