Cu@C dispersed TiO2 for dye-sensitized solar cell photoanodes

H. Y. Kang, Hong-Paul Wang

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

Nanosize copper embedded in the inert carbon shell (Cu@C) prepared by carbonization of Cu2+-β-CD at 573K was dispersed in TiO2. The Cu@C (0.1% and 0.3%) dispersed TiO2 was used in assembling of photoanodes for dye-sensitized solar cells (DSSCs). By small angle X-ray scattering (SAXS) spectroscopy, it is found that the Cu@C dispersed TiO2 having an average Cu diameter of 18.3nm and carbon shell thickness of 3-5nm. Larger Cu nanoparticles having an average diameter of 24.5nm in TiO2 was formed when their carbon shells were steam reformed at 673K. The Cu nanoparticles having a spherical shape are well dispersed in TiO2, which significantly enhance the photo-excited electron transfer for the DSSC. Notably, the Cu dispersed TiO2 photoanode has a greater efficiency than the pure TiO2 one by at least 23%. This work exemplifies a simple and novel alternative to enhance DSSC efficiencies.

Original languageEnglish
Pages (from-to)144-147
Number of pages4
JournalApplied Energy
Volume100
DOIs
Publication statusPublished - 2012 Jan 1

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Energy(all)

Fingerprint Dive into the research topics of 'Cu@C dispersed TiO<sub>2</sub> for dye-sensitized solar cell photoanodes'. Together they form a unique fingerprint.

Cite this