Ligand capping effect for dye solar cells with a CdSe quantum dot sensitized ZnO nanorod photoanode

Opt Express. 2010 Jan 18;18(2):1296-301. doi: 10.1364/OE.18.001296.

Abstract

We report a quantum dot sensitized solar cell (QDSSC) with a thioglycolic acid (TGA) capped CdSe quantum dot (QD) sensitized ZnO nanorod photoanode. As revealed by UV-Vis absorption spectrum and transmission electron microscopy, the quantum dots can be effectively adsorbed onto ZnO nanorods. By studying the emission decay, the quenching of the CdSe QDs by ZnO nanorod was verified, and an electron transfer (from QD to ZnO) rate constant of 1 x 10(8) s(-1) was obtained. The efficiency of the as-prepared QDSSC was 0.66% and an incident power conversion efficiency of 22% at 400 nm was achieved.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Cadmium Compounds / chemistry*
  • Cadmium Compounds / radiation effects
  • Electric Power Supplies*
  • Electrodes
  • Equipment Design
  • Equipment Failure Analysis
  • Fluorescent Dyes / chemistry*
  • Ligands
  • Light
  • Nanostructures / chemistry*
  • Nanostructures / radiation effects
  • Quantum Dots*
  • Selenium Compounds / chemistry*
  • Selenium Compounds / radiation effects
  • Solar Energy*
  • Zinc Oxide / chemistry*
  • Zinc Oxide / radiation effects

Substances

  • Cadmium Compounds
  • Fluorescent Dyes
  • Ligands
  • Selenium Compounds
  • cadmium selenide
  • Zinc Oxide