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Multichromophore light harvesting in hybrid solar cells

DOI zum Zitieren der Version auf EPub Bayreuth: https://doi.org/10.15495/EPub_UBT_00004782
URN to cite this document: urn:nbn:de:bvb:703-epub-4782-4

Title data

Bandara, Jayasundera ; Willinger, Katja ; Thelakkat, Mukundan:
Multichromophore light harvesting in hybrid solar cells.
In: Physical Chemistry Chemical Physics. Vol. 13 (2011) Issue 28 . - pp. 12906-12911.
ISSN 1463-9076
DOI der Verlagsversion: https://doi.org/10.1039/c1cp21697j

Abstract

A new technologically relevant method for multichromophore sensitizing of hybrid blend solar cells is presented. Two dyes having complementary absorption in the UV-visible regions are individually adsorbed on nanocrystalline TiO2 powder. These dyed TiO2 nanoparticles are blended with an organic hole-conductor (HC) Spiro-OMeTAD in desired compositions and applied on a conducting substrate by doctor-blading at room temperature to fabricate multichromophore-sensitized hybrid blend solar cells. The external quantum efficiency (EQE) of the single hybrid layer system fabricated with two dyes, that absorb mainly UV (TPD dye) and visible regions (Ru-TPA-NCS dye), exhibited a clear panchromatic response with the sum of the EQE characteristics of each single dye cell. The first results of a multichromophore-sensitized solid-state solar cell showed Jsc of 2.1 mA cm−2, Voc of 645 mV, FF of 47% and efficiency of 0.65% at AM 1.5 G, 100 mW cm−2 illumination intensity. The Jsc of the multichromophore cell is the sum of the individually dyed solar cells. The process described here is technically very innovative and very simple in procedure. It has potentials to be adopted for panchromatic sensitization using more than two dyes in a single hybrid layer or layer-wise fabrication of a tandem structure at room temperature.

Further data

Item Type: Article in a journal
Additional notes (visible to public): ISI:000293460400028
DDC Subjects: 500 Science > 530 Physics
500 Science > 540 Chemistry
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Professor Applied Functional Polymers > Professor Applied Functional Polymers - Univ.-Prof. Dr. Mukundan Thelakkat
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Professor Applied Functional Polymers
Language: English
Originates at UBT: Yes
URN: urn:nbn:de:bvb:703-epub-4782-4
Date Deposited: 08 Sep 2020 06:40
Last Modified: 08 Sep 2020 06:40
URI: https://epub.uni-bayreuth.de/id/eprint/4782

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