Efficient Sensitization of Nanocrystalline TiO 2  Films by a Near‐IR‐Absorbing Unsymmetrical Zinc Phthalocyanine | Zendy

Reddy Paidi Yella | Zendy; Giribabu Lingamallu | Zendy; Lyness Christopher | Zendy; Snaith Henry J. | Zendy; Vijaykumar Challuri | Zendy; Chandrasekharam Malapaka | Zendy; Lakshmikantam Mannepalli | Zendy; Yum JunHo | Zendy; Kalyanasundaram Kuppuswamy | Zendy; Grätzel Michael | Zendy; Nazeeruddin Mohammad K. | Zendy

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Efficient Sensitization of Nanocrystalline TiO 2 Films by a Near‐IR‐Absorbing Unsymmetrical Zinc Phthalocyanine

Author(s) -

Reddy Paidi Yella,

Giribabu Lingamallu,

Lyness Christopher,

Snaith Henry J.,

Vijaykumar Challuri,

Chandrasekharam Malapaka,

Lakshmikantam Mannepalli,

Yum JunHo,

Kalyanasundaram Kuppuswamy,

Grätzel Michael,

Nazeeruddin Mohammad K.

Publication year - 2007

Publication title -

angewandte chemie international edition

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.831

H-Index - 550

eISSN - 1521-3773

pISSN - 1433-7851

DOI - 10.1002/anie.200603098

Subject(s) - nanocrystalline material , phthalocyanine , zinc , sensitization , materials science , zinc compounds , chemical engineering , photochemistry , nanotechnology , chemistry , metallurgy , medicine , engineering , immunology

Pushing and pulling by three tert ‐butyl and two carboxylic acid groups, respectively, results in a sensitizer (see picture) that exhibits an incident photon‐to‐current conversion efficiency of 75 %. A cell sensitized with this compound gives a short‐circuit photocurrent density of (6.50±0.20) mA cm −2 , an open‐circuit voltage of (635±30) mV, and a fill factor of 0.74±0.03, which corresponds to an overall conversion efficiency of 3.05 %.

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