Format

Send to

Choose Destination
See comment in PubMed Commons below
Langmuir. 2008 May 20;24(10):5636-40. doi: 10.1021/la800087q. Epub 2008 Apr 25.

Effect of coadsorbent on the photovoltaic performance of zinc pthalocyanine-sensitized solar cells.

Author information

1
Institute of Chemical Sciences and Engineering, Swiss Federal Institute of Technology, Lausanne, Switzerland.

Abstract

The effect of chenodeoxycholic acid as a coadsorbent on TiO 2 nanocrystalline solar cells incorporating phthalocyanine sensitizers was studied under various conditions. Adding chenodeoxycholic acid onto TiO 2 nanoparticles not only reduces the adsorption of phthalocyanine sensitizers but also prevents sensitizer aggregation, leading to different photovoltaic performance. The inspection of IPCE and absorption spectra showed that the load of phthalocyanine sensitizers is strongly dependent on the molar concentration of chenodeoxycholic acid coadsorbent. The open circuit voltage of the solar cells with chenodeoxycholic acid coadsorbent increases due to the enhanced electron lifetime in TiO 2 nanoparticles coupled with the band edge shift of TiO 2 to negative potentials.

PMID:
18435553
DOI:
10.1021/la800087q
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for American Chemical Society
    Loading ...
    Support Center