In:
Applied Physics Express, IOP Publishing, Vol. 9, No. 8 ( 2016-08-01), p. 082602-
Abstract:
Colloidal CdSe nanocrystals are synthesized and successively overcoated with CdS monolayers (MLs). The three-photon absorption (3PA) properties are measured by Z -scan and nonlinear transmission techniques with 80 fs laser pulses at 1250 nm in the near-infrared. The 3PA enhancement factor due to the overcoating of three ML CdS was 850, significantly larger than that caused by a size increase of the CdSe cores. The 3PA enhancement mainly originates from the reduction of nonradiative traps on the cores’ surface. The effects of a local field and intrinsic piezoelectric polarization are also discussed.
Type of Medium:
Online Resource
ISSN:
1882-0778
,
1882-0786
DOI:
10.7567/APEX.9.082602
Language:
Unknown
Publisher:
IOP Publishing
Publication Date:
2016
detail.hit.zdb_id:
2403350-9
detail.hit.zdb_id:
2417569-9
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