CPL - Chalmers Publication Library
| Utbildning | Forskning | Styrkeområden | Om Chalmers | In English In English Ej inloggad.

A polymer electrolyte containing ionic liquid for possible applications in photoelectrochemical solar cells

T.M.W.J. Bandara (Institutionen för teknisk fysik, Fasta tillståndets fysik) ; P Ekanayake ; M.A.K.L. Dissanayake ; Ingvar Albinsson ; Bengt-Erik Mellander (Institutionen för teknisk fysik, Fasta tillståndets fysik)
Journal of Solid State Electrochemistry (1432-8488). Vol. 14 (2010), 7, p. 1221-1226.
[Artikel, refereegranskad vetenskaplig]

Various iodide ion conducting polymer electrolytes have been studied as candidate materials for fabricating photoelectrochemical (PEC) solar cells and energy storage devices. In this study, enhanced ionic conductivity values were obtained for the ionic liquid tetrahexylammonium iodide containing polyethylene oxide (PEO)-based plasticized electrolytes. The analysis of thermal properties revealed the existence of two phases in the electrolyte, and the conductivity measurements showed a marked conductivity enhancement during the melting of the plasticizer-rich phase of the electrolyte. Annealed electrolyte samples showed better conductivity than nonannealed samples, revealing the existence of hysteresis. The optimum conductivity was shown for the electrolytes with PEO:salt= 100:15 mass ratio, and this sample exhibited the minimum glass transition temperature of 72.2 °C. For this optimum PEO to salt ratio, the conductivity of nonannealed electrolyte was 4.4×10−4 S cm−1 and that of the annealed sample was 4.6×10−4 S cm−1 at 30 °C. An all solid PEC solar cell was fabricated using this annealed electrolyte. The short circuit current density (ISC), the open circuit voltage (VOC), and the power conversion efficiency of the cell are 0.63 mA cm−2, 0.76 V, and 0.47% under the irradiation of 600 W m−2 light.

Nyckelord: PEC solar cells, Polymer electrolyte, Ionic conductivity, Ionic liquid

Denna post skapades 2009-12-14. Senast ändrad 2011-12-14.
CPL Pubid: 103519


Läs direkt!

Länk till annan sajt (kan kräva inloggning)

Institutioner (Chalmers)

Institutionen för teknisk fysik, Fasta tillståndets fysik (2005-2015)
Institutionen för fysik (GU) (GU)


Den kondenserade materiens fysik
Kemisk fysik

Chalmers infrastruktur