Broadband light confinement using a hierarchically structured TiO2 multi-layer for dye-sensitized solar cells
SCIE
SCOPUS
- Title
- Broadband light confinement using a hierarchically structured TiO2 multi-layer for dye-sensitized solar cells
- Authors
- Chang, YJ; Kong, EH; Park, YC; Jang, HM
- Date Issued
- 2013-01
- Publisher
- ROYAL SOC CHEMISTRY
- Abstract
- Herein, we present a simple strategy for broadband light confinement without sacrificing dye-loading capacity by suitably combining multi-layer architecture with hierarchically structured TiO2. For this purpose, three distinct TiO2 hierarchical nanomaterials were exploited to simultaneously realize high internal surface area and a graded series of optical properties (in terms of reflectance and transmittance). The present hierarchically structured multi-layer showed a remarkable improvement in the overall efficiency for dye-sensitized solar cells (DSCs): a maximum of 11.43% at 1 Sun (12.16% at 1/8 Sun) versus 8.15% at 1 Sun (8.26% at 1/8 Sun) for the reference cell made of a nanocrystalline TiO2 single-layer. This notable result is attributed to the synergetic effects of the enhanced broadband light confinement, dye-loading, and charge-collection efficiency.
- Keywords
- ENERGY-CONVERSION EFFICIENCY; HIGH SURFACE-AREAS; TITANIA BEADS; SCATTERING; FILM; SIMULATIONS; PERFORMANCE; 10-PERCENT
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/13476
- DOI
- 10.1039/C3TA11527E
- ISSN
- 2050-7488
- Article Type
- Article
- Citation
- JOURNAL OF MATERIALS CHEMISTRY A, vol. 1, no. 34, page. 9707 - 9713, 2013-01
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