Semiconductor Nanocrystals Photosensitize C60 Crystals

Semiconductor nanocrystals (SCNCs) made of CdSe, CdTe, and InP are used to photosensitize needlelike C60 crystals. The photocurrent is increased by up to 3 orders of magnitude as compared with C60 crystals without SCNCs. The photocurrent spectrum can be tuned precisely by the SCNC size and material,...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Veröffentlicht in:	Nano letters 2006-07, Vol.6 (7), p.1559-1563
Hauptverfasser:	Biebersdorf, Andreas, Dietmüller, Roland, Susha, Andrei S, Rogach, Andrey L, Poznyak, Sergey K, Talapin, Dmitri V, Weller, Horst, Klar, Thomas A, Feldmann, Jochen
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Cadmium Compounds - chemistry Condensed matter: electronic structure, electrical, magnetic, and optical properties Cross-disciplinary physics: materials science rheology Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures Electronic transport phenomena in thin films and low-dimensional structures Electronics Exact sciences and technology Fullerenes - chemistry Fullerenes and related materials diamonds, graphite Indium - chemistry Materials science Nanoscale materials and structures: fabrication and characterization Nanostructures - chemistry Optoelectronic devices Other topics in nanoscale materials and structures Phosphines - chemistry Photochemistry Photoconduction and photovoltaic effects photodielectric effects Physics Selenium Compounds - chemistry Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices Semiconductors Specific materials Tellurium - chemistry
Online-Zugang:	Volltext
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	Semiconductor nanocrystals (SCNCs) made of CdSe, CdTe, and InP are used to photosensitize needlelike C60 crystals. The photocurrent is increased by up to 3 orders of magnitude as compared with C60 crystals without SCNCs. The photocurrent spectrum can be tuned precisely by the SCNC size and material, rendering the SCNC-functionalized C60 crystals an excellent material for spectrally tuneable photodetectors. We explain the increased photocurrent as a result of photoexcited electrons transferring from the SCNCs to the C60 crystals and causing photoconductivity, while the complementary holes remain trapped in the SCNCs.
ISSN:	1530-6984 1530-6992
DOI:	10.1021/nl060136g