Solid-state dye-sensitized solar cells using mesoporous TiO2 films fabricated with amphiphilic rubbery random copolymer

Dong Jun Kim, Sung Hoon Ahn, Dong Kyu Roh, Jong Hak Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

An amphiphilic copolymer, PLMA-POEM, was synthesized with hydrophobic poly(lauryl methacrylate) (PLMA) and hydrophilic poly(oxyethylene methacrylate) (POEM), which is cheap and rubbery state. The copolymers were characterized by using Fourier transform infra-red spectroscopy (FT-IR), 1H-nuclear magnetic resonance (1H-NMR) and gel permeation spectroscopy (GPC). The copolymers were used as sacrificial agent to fabricate anatase mesoporous TiO2 films and, by varying amounts of TiO2 particles, polymer molecular weight (MW), concentration of the copolymers, various mesoporous TiO2 films were fabricated. With a low MW polymer, the TiO2 formed a worm-like structure with smaller pores, whereas an aggregated honeycomb-like TiO2 with bimodal pores was obtained for the high MW system, characterized by scanning electron microscopy (SEM), grazing incidence small-angle X-ray scattering (GI-SAXS) and N2 adsorption-desorption measurement. With 2μm-thick TiO2 film, efficiency was 4.2% due to better pore filling of the solid electrolyte and improved light scattering properties. By using a layer-by-layer method, the efficiency was further improved to 5.0% at 7μm thickness.

Original languageEnglish
Title of host publicationMaterials Science, Machinery and Energy Engineering
Pages297-301
Number of pages5
DOIs
Publication statusPublished - 2014 Jan 16
Event2013 International Conference on Materials Science, Machinery and Energy Engineering, MSMEE 2013 - , Hong Kong
Duration: 2013 Dec 242013 Dec 25

Publication series

NameAdvanced Materials Research
Volume853
ISSN (Print)1022-6680

Other

Other2013 International Conference on Materials Science, Machinery and Energy Engineering, MSMEE 2013
CountryHong Kong
Period13/12/2413/12/25

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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    Kim, D. J., Ahn, S. H., Roh, D. K., & Kim, J. H. (2014). Solid-state dye-sensitized solar cells using mesoporous TiO2 films fabricated with amphiphilic rubbery random copolymer. In Materials Science, Machinery and Energy Engineering (pp. 297-301). (Advanced Materials Research; Vol. 853). https://doi.org/10.4028/www.scientific.net/AMR.853.297