Strategic design and synthesis of novel tridentate bipyridine pyrazolate coupled Ru(II) complexes to achieve superior solar conversion efficiency

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Kellen Chen
  • Yi-Huan Hong
  • Wei-Hsin Liu
  • Bo-So Chen
  • Pi-Tai Chou

Detail(s)

Original languageEnglish
Pages (from-to)5329-5335
Journal / PublicationJournal of Materials Chemistry
Volume19
Issue number30
Online published21 Apr 2009
Publication statusPublished - 14 Aug 2009
Externally publishedYes

Abstract

A new series of tridentate bipyridine pyrazolate coupled Ru(ii) complexes CK1, CK2, HY1 and HY2 were strategically designed and synthesized. In comparison to N719, CK2 and HY2 achieved the original proposal of obtaining an absorption extinction coefficient ranging from 350 to ∼550 nm, accompanied by lowering of the lowest lying energy gap. These advantages allow us to reduce the thickness of the TiO2 layer, resulting in great suppression of the dark current and hence an increase of Voc. Upon optimization, HY2 attained η = 8.07, Jsc = 15.81 mA cm-2, Voc = 753 mV and FF = 0.678, the results of which are equivalent to that of N719 (η = 8.02, Jsc = 15.70 mA cm-2, Voc = 765 mV and FF = 0.668) maximized in this study. 

Citation Format(s)

Strategic design and synthesis of novel tridentate bipyridine pyrazolate coupled Ru(II) complexes to achieve superior solar conversion efficiency. / Chen, Kellen; Hong, Yi-Huan; Chi, Yun; Liu, Wei-Hsin; Chen, Bo-So; Chou, Pi-Tai.

In: Journal of Materials Chemistry, Vol. 19, No. 30, 14.08.2009, p. 5329-5335.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review