Formation of artificial pores in nano-TiO2 photo-electrode films using acetylene-black for high-efficiency, dye-sensitized solar cells

Tae Yeon Cho, Chi Whan Han, Yongseok Jun, Soon Gil Yoon

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)

Abstract

Acetylene-black paste without a light scattering layer was applied to meso-porous TiO2 photo-electrode films with a crystalline framework, a low residual carbon, and a tunable morphological pore size. The thermal-treated TiO2 photo-electrode films had an increased acetylene-black concentration with an increase in artificial pores and a decrease in residual carbon. The performance of dye-sensitized solar cells (DSSCs) was enhanced by the use of the TiO2 photo-anode pastes at various acetylene-black concentrations. The photo-conversion efficiency of the DSSCs using TiO2 photo-electrode films with 1.5 wt% acetylene-black was enhanced from 7.98 (no acetylene-black) to 9.75% without the integration of a light-scattering layer.

Original languageEnglish
Article number1496
JournalScientific reports
Volume3
DOIs
Publication statusPublished - 2013
Externally publishedYes

Bibliographical note

Funding Information:
This work was supported by a National Research Foundation of Korea (NRL) grant funded by the Korea Government (MEST) (No. 2011-0000359). This work was supported by the International Collaborative R&D Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by Korea government Ministry of Knowledge Economy [20118520010020]. Authors thank Prof. Young-Seak Lee for valuable discussion of EIS analysis.

ASJC Scopus subject areas

  • General

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