Loading…

Molecular design of metal-free D-π-A substituted sensitizers for dye-sensitized solar cells

Novel donor-π-acceptor (D-π-A) dyes, coded as SD-1 , SD-2 and SD-5 , were designed and synthesized for dye-sensitized solar cells. All these dyes comprised the same donor and acceptor units while the oligo thiophene units were introduced as linkers between the donor and acceptor units. The photophys...

Full description

Saved in:
Bibliographic Details
Published in:Energy & environmental science 2010-01, Vol.3 (11), p.1757-1764
Main Authors: Alibabaei, L, Kim, J.-H, Wang, M, Pootrakulchote, N, Teuscher, J, Di Censo, D, Humphry-Baker, R, Moser, J.-E, Yu, Y.-J, Kay, K.-Y, Zakeeruddin, S. M, Grätzel, M
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Novel donor-π-acceptor (D-π-A) dyes, coded as SD-1 , SD-2 and SD-5 , were designed and synthesized for dye-sensitized solar cells. All these dyes comprised the same donor and acceptor units while the oligo thiophene units were introduced as linkers between the donor and acceptor units. The photophysical and electrochemical properties of the dyes were investigated by UV/vis spectrometry and cyclic voltammetry. The dyes were subsequently tested as sensitizers in dye-sensitized solar cells. Photovoltaic performance of the device with SD-2 dye showed maximum monochromatic incident photon-to-current efficiency (IPCE) of 82% and an over all conversion efficiency of 6.2% under full sunlight (AM 1.5G, 100 mW cm −2 ) irradiation. Novel donor-π-acceptor dyes, coded as SD-1 , SD-2 and SD-5 , were designed and synthesized for dye-sensitized solar cells. Photovoltaic performance of the device with SD-2 dye showed an overall conversion efficiency of 6.2% under full sunlight irradiation.
ISSN:1754-5692
1754-5706
DOI:10.1039/c0ee00218f