Ultrafast charge transfer from CdSe nanoparticles to methylviologen and single-walled carbon nanotubes and its effect on hybrid bulk heterojunction photovoltaic devices

CdSe nanoparticles combined with electron accepting materials, specifically methyl viologen (MV 2+ ) and single walled carbon nanotubes (SWCNT), have been investigated. By using transient absorption spectroscopic measurements, ultrafast electron transfer has been shown to occur between the nanoparti...

Full description

Saved in:
Bibliographic Details
Main Authors: Peterson, E.D., Minglai Fu, Ucer, K.B., Adams, R.D., Carroll, D.L.
Format: Conference Proceeding
Language:English
Subjects:
Absorption
Carbon nanotubes
Charge transfer
Electrons
Heterojunctions
Nanoparticles
Organic materials
Photovoltaic systems
Solar power generation
Spectroscopy
Online Access:Request full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:CdSe nanoparticles combined with electron accepting materials, specifically methyl viologen (MV 2+ ) and single walled carbon nanotubes (SWCNT), have been investigated. By using transient absorption spectroscopic measurements, ultrafast electron transfer has been shown to occur between the nanoparticles and the accepting materials. These composites were then mixed with poly(3-hexylthopene) to create hybrid bulk-heterojunction photovoltaic devices. It has been found that for matched concentrations (by weight), the composite materials show increased photocurrent when compared with CdSe nanoparticles.
ISSN:0160-8371
DOI:10.1109/PVSC.2009.5411290