Characterization of Synthetic Ni(II)-Xylenol Complex as a Photosensitizer for Wide-Band Gap ZnO Semiconductor Electrodes. (28th February 2011)

• Record Type: Journal Article
• Authors: Kushwaha, Suman; Bahadur, Lal
• Other Names: Augugliaro Vincenzo Academic Editor.
• Is Part Of: International journal of photoenergy. Volume 2011(2011)
• Publication Date: 2011-02-28
• Subjects: Photochemistry -- Periodicals; Photobiology -- Periodicals; Chemistry, Physical and theoretical -- Periodicals; Photochimie; Photobiologie; Chimie physique et théorique; Chemistry, Physical and theoretical; Photobiology; Photochemistry; Electronic journals; Periodicals; 541.35
• DOI: 10.1155/2011/980560
• Languages: English
• ISSNs: 1110-662X

Abstract

Abstract : A synthetic Ni II L(H2 O)2 complex (L = xylenol orange, 3, 3 ′ -bis [N, N-di(carboxymethyl)-aminomethyl]-o-cresol sulphonapthalein (H2 O)2 ), which is a water-soluble dye, has been studied for its photosensitizing properties atn -ZnO semiconductor electrodes prepared by sol-gel techniques. The absorption spectrum of aqueous solution of this complex exhibits a strong peak at 563 nm and a shoulder at 526 nm wavelength of light. The sandwich-type dye-sensitized solar cell using ZnO semiconducting thin film with test dye anchored onto it showed the cell output as follows:V OC = 0.506 V, J sc = 1.68 mA cm −2, andF F = 0.41 under illumination with full spectrum of light (intensity 520 mW cm −2 ), while on illumination with visible light (λ > 420 nm, intensity 480 mW cm −2 ), V OC = 0.506 V, J sc = 1.4 mA cm −2, andF F = 0.49 were achieved. Maximum incident photon-to-current conversion efficiency for the present system was found to be 8.7% at wavelength (λ max = 563 nm).