Synthesis of highly-ordered TiO2 through CO2 supercritical extraction for dye-sensitized solar cell application

Bambang Priyono, Akhmad Herman Yuwono, Badrul Munir, A. Rahman, A. Maulana, H. Abimanyu

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

5 Citations (Scopus)


Dye-sensitized solar cell (DSSC) is one of the very promising alternative renewable energy sources to anticipate the diminishing in the fossil fuel reserves in the next few decades and to make use of the abundance of intensive sunlight energy in tropical countries like Indonesia. TiO2 nanoparticles have been used as the photo electrode in DSSC because of its high surface area and allow the adsorption of a large number of dye molecules. In the present study, TiO2 aerogel have been synthesized via sol-gel process with water to inorganic precursor ratio (Rw) of 2.00, followed with subsequent drying by CO2 supercritical extraction (SCE). As comparison, the TiO2 xerogel was also prepared by conventional drying and annealing. Both types of gels were subjected to conventional and multi-step annealing. The resulting nanoparticles in aerogel and xerogel have a band-gap energy of 3.10 and 3.04 eV, respectively. The open circuit voltage (Voc) measurement reveals that the DSSC fabricated with aerogel provided a higher voltage (21,40 mV) than xerogel (1,10 mV).

Original languageEnglish
Title of host publicationAdvances in Materials, Processing and Manufacturing
Number of pages5
Publication statusPublished - 29 Oct 2013
Event13th International Conference on Quality in Research, QiR 2013 - Yogyakarta, Indonesia
Duration: 25 Jun 201328 Jun 2013

Publication series

NameAdvanced Materials Research
ISSN (Print)1022-6680


Conference13th International Conference on Quality in Research, QiR 2013


  • Aerogel
  • Dye sensitized solar cell
  • Multi-step calcinations
  • Super critical extraction
  • TiO
  • Xerogel

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