A New Heteroleptic Biquinoline Ruthenium(II) Sensitizer for Near-IR Sensitization of Nanocrystalline TiO2 | Zendy

Surya Prakash Singh | Zendy; Kankatala S. V. Gupta | Zendy; Pavuluri Srinivasu | Zendy; Ashraful Islam | Zendy; Mohammad Rezaul Karim | Zendy

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A New Heteroleptic Biquinoline Ruthenium(II) Sensitizer for Near-IR Sensitization of Nanocrystalline TiO₂

Author(s) -

Surya Prakash Singh,

Kankatala S. V. Gupta,

Pavuluri Srinivasu,

Ashraful Islam,

Mohammad Rezaul Karim

Publication year - 2013

Publication title -

journal of chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.436

H-Index - 50

eISSN - 2090-9063

pISSN - 2090-9071

DOI - 10.1155/2013/367617

Subject(s) - chemistry , ruthenium , nanocrystalline material , photocurrent , photosensitizer , photochemistry , irradiation , sensitization , nuclear chemistry , crystallography , organic chemistry , optoelectronics , catalysis , materials science , immunology , biology , physics , nuclear physics

Ruthenium(II) complex containing cis-[Ru(H2dcbiq)(L)(NCS)2], where H2dcbiq = 4,4′-dicarboxy-2,2′-biquinoline and L = 4,4′-di-tert-butyl-2-2′-dipyridyl coded as SPS-02, was synthesized and fully characterized. This complex showed appreciably broad absorption range. The new complex was used as photosensitizer in nanocrystalline TiO2 dye-sensitized solar cell application. cis-[Ru(H2dcbiq)(L)(NCS)2] (SPS-02) achieved efficient sensitization of nanocrystalline TiO2 over the whole visible range, extending into the near-IR region (ca. 1000 nm) with superior short-circuit photocurrent density ( = 9.13 mA cm−2) and conversion efficiency (η = 2.09%) compared with complex cis-[Ru(H2dcbiq)2(NCS)2] (1) under an irradiation of full sunlight (100 mW cm−2)

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