title: Spectroscopy and dynamics of Mn(2+) in ZnS nanoparticles.
abstract: Both spectra of transient absorption (lambda(max) = 390 nm) and luminescence (lambda(max) = 590 nm) for the (4)T(1) state of Mn(2+) in ZnS nanoparticles shift to long wavelengths by 40 nm and broaden by 1.7 times as the state becomes banded. The (4)T(1) band of capping Mn(2+) in ZnS nanoparticles decays on the time scale of 0.35 mus, which is much shorter than either the decay time of the (4)T(1) state (2000 micros) for lattice-bound isolated Mn(2+) or that (180 micros) for surface-bound isolated Mn(2+) in ZnS nanoparticles.
authors.affiliation: School of Chemistry, Seoul National University, NS60, Seoul, 151-742, Korea.
authors.forename: Mee Rahn
authors.initials: MR
authors.lastname: Kim
authors.forename: Jae Hun
authors.initials: JH
authors.lastname: Chung
authors.forename: Du-Jeon
authors.initials: DJ
authors.lastname: Jang