Blue Light-Emission from a Nanostructured Organic Polymer Semiconductor
We report on the enhancement of the photoluminescence (PL) intensity from a nanostructured organic material composed of nanosized aggregates of poly(para-phenylene) (PPP) in a polystyrene insulating matrix. In addition, the peak of the PL emission spectrum from these nanostructured organic semiconductors is blue-shifted from that of unstructured PPP. Furthermore, these PL characteristics correlate with the presence of an unusual sub-gap absorption feature that is present only in the nanostructured PPP. These results suggest the departure of the optical properties of random nanostructured organic polymers from their unstructured counterparts.
WOS:A1995RC17300012
1995
95
3
185
189
Inst charles sadron,f-67083 strasbourg,france. Romero, db, swiss fed inst technol,dept phys,ch-1015 lausanne,switzerland.
ISI Document Delivery No.: RC173
Cited Reference Count: 13
Cited References:
AUVRAY L, 1991, NEUTRON XRAY LIGHT S
BURN PL, 1992, NATURE, V356, P47
FRANCOIS B, 1991, SYNTHETIC MET, V41, P955
FRIEND RH, 1987, J PHYS D APPL PHYS, V20, P1367
GREM G, 1992, ADV MATER, V4, P36
GUSTAFSSON G, 1992, NATURE, V357, P477
HEEGER AJ, 1988, REV MOD PHYS, V60, P781
LEISING G, 1989, SPRINGER SERIES SOLI, V91, P100
MCCONNELL GA, 1993, PHYS REV LETT, V71, P2102
NEUMARK GF, 1994, PHYS TODAY, V47, P26
ROMERO DB, 1992, SOLID STATE COMMUN, V82, P183
YOFFE AD, 1993, ADV PHYS, V42, P173
ZHONG XF, 1991, MAKROMOL CHEM, V192, P2277
REVIEWED