title: Array of solid-state dye-sensitized solar cells with micropatterned TiO2 nanoparticles for a high-voltage power source.
abstract: We demonstrate an array of solid-state dye-sensitized solar cells (SS-DSSCs) for a high-voltage power source based on micropatterned titanium dioxide nanoparticles (TNPs) as photoanodes connected in series. The underlying concept of patterning the TNP of a few micrometers thick lies on the combination of the lift-off process of transfer-printed patterns of a sacrificial layer and the soft-cure treatment of the TNP for fixation. This sacrificial layer approach allows for high pattern fidelity and stability, and it enables to construct stable, micrometer-thick, and contamination-free TNP patterns for developing the SS-DSSC array for miniature high-voltage applications. The array of 20 SS-DSSCs integrated in series is found to show a voltage output of around 7 V.
authors.affiliation: School of Electrical Engineering, Seoul National University, Kwanak, PO Box 34, Seoul 151-600, South Korea. sidlee@plaza.snu.ac.kr.
authors.forename: Seong-Min
authors.initials: SM
authors.lastname: Cho
authors.forename: Hea-Lim
authors.initials: HL
authors.lastname: Park
authors.forename: Min-Hoi
authors.initials: MH
authors.lastname: Kim
authors.forename: Se-Um
authors.initials: SU
authors.lastname: Kim
authors.forename: Sin-Doo
authors.initials: SD
authors.lastname: Lee