Large improvement of electron extraction from CdSe quantum dots into a TiO2 thin layer by N3 dye coabsorption

Iván Mora-Seró; Thomas Dittrich; Andrei S. Susha; Andrey L. Rogach; Juan Bisquert

doi:10.1016/j.tsf.2007.12.110

Author(s)

Iván Mora-Seró
Thomas Dittrich
Andrei S. Susha
Andrey L. Rogach
Juan Bisquert

Detail(s)

Original language	English
Pages (from-to)	6994-6998
Journal / Publication	Thin Solid Films
Volume	516
Issue number	20
Publication status	Published - 30 Aug 2008
Externally published	Yes

Link(s)

DOI	DOI https://doi.org/10.1016/j.tsf.2007.12.110 Final Published version
	Check@CityULib
Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-45849129869&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(a0b3e03c-34ff-4ad5-85c0-3abc15a89cec).html

Abstract

Extraction of electrons and holes photogenerated in CdSe quantum dots (QD) of 2.3 nm diameter, is monitored by Surface Photovoltage Spectroscopy. The extraction of electrons into a thin TiO₂ layer increases five-fold by absorption of N3 dye molecules on top of the QD layer. This process is facilitated by efficient hole extraction from the valence band of the QDs to the ground state of the N3 dye. Our results represent a direct measurement of charge separation in the N3/QD/TiO₂ system. © 2007 Elsevier B.V. All rights reserved.

Research Area(s)

Dye sensitized solar cells, Electron injection, Quantum dots, Surface photovoltage

SDG 7 - Affordable and Clean Energy

Citation Format(s)

[ RIS ] [ BibTeX ]

Large improvement of electron extraction from CdSe quantum dots into a TiO2 thin layer by N3 dye coabsorption. / Mora-Seró, Iván; Dittrich, Thomas; Susha, Andrei S. et al.
In: Thin Solid Films, Vol. 516, No. 20, 30.08.2008, p. 6994-6998.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

Mora-Seró, I, Dittrich, T, Susha, AS, Rogach, AL & Bisquert, J 2008, 'Large improvement of electron extraction from CdSe quantum dots into a TiO2 thin layer by N3 dye coabsorption', Thin Solid Films, vol. 516, no. 20, pp. 6994-6998. https://doi.org/10.1016/j.tsf.2007.12.110

Mora-Seró, I., Dittrich, T., Susha, A. S., Rogach, A. L., & Bisquert, J. (2008). Large improvement of electron extraction from CdSe quantum dots into a TiO2 thin layer by N3 dye coabsorption. Thin Solid Films, 516(20), 6994-6998. https://doi.org/10.1016/j.tsf.2007.12.110

Mora-Seró I, Dittrich T, Susha AS, Rogach AL, Bisquert J. Large improvement of electron extraction from CdSe quantum dots into a TiO2 thin layer by N3 dye coabsorption. Thin Solid Films. 2008 Aug 30;516(20):6994-6998. doi: 10.1016/j.tsf.2007.12.110

Mora-Seró, Iván ; Dittrich, Thomas ; Susha, Andrei S. et al. / Large improvement of electron extraction from CdSe quantum dots into a TiO2 thin layer by N3 dye coabsorption. In: Thin Solid Films. 2008 ; Vol. 516, No. 20. pp. 6994-6998.