INVESTIGADORES
TAGLIAZUCCHI Mario Eugenio
artículos
Título:
High-contrast photopatterning of photoluminescence within quantum dot films through degradation of a charge-transfer quencher
Autor/es:
MARIO TAGLIAZUCCHI; AMIN, VICTOR A.; SCHNEEBELI, SEVERIN T. ; STODDART, J. FRASER ; WEISS, EMILY A.
Revista:
ADVANCED MATERIALS
Editorial:
WILEY-V C H VERLAG GMBH
Referencias:
Lugar: Weinheim; Año: 2012 vol. 24 p. 3616 - 3621
ISSN:
0935-9648
Resumen:
Diffraction-limited, high-contrast photopatterning of the photoluminescence of layer-by-layer films comprising CdSe@CdS@ZnS quantum dots and polyviologen is reported. The photoluminescence of the quantum dots is initially quantitatively quenched due to ultrafast photoinduced electron transfer to polyviologen. Photopatterning is achieved by high-power or prolonged illumination in air, which photochemically degrades the polyviologen and thereby restores the photoluminescence of the quantum dots.
