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INFLUENCE OF GROWTH TIME ON STRUCTURAL, OPTICAL AND ELECTRICAL PROPERTIES OF TiO₂ NANOROD ARRAYS DEPOSITED BY HYDROTHERMAL METHOD

SELMA M. H. AL-JAWAD

Applied Sciences Department, University of Technology, Baghdad, Iraq

E-mail Address: salma-aljawad@yahoo.com

E-mail Address: 100069@uotechnology.edu.iq

Corresponding author.

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ODAI N. SALMAN

Applied Sciences Department, University of Technology, Baghdad, Iraq

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, and

NWAR A. YOUSIF

Applied Sciences Department, University of Technology, Baghdad, Iraq

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https://doi.org/10.1142/S0218625X1850155XCited by:21 (Source: Crossref)

Abstract

Well-oriented TiO₂ nanorod (NR) arrays were fabricated directly on conductive side of F/SnO₂ substrates via hydrothermal technique. The effect of growth time on the TiO₂ NR thin film was examined. Field emission scanning electron microscope revealed that NRs exhibited a tetragonal structure with square top facets. Thickness measurements indicated that the thicknesses of the samples increased from 0.234 $μ$ m to 1.544 $μ$ m as the growth time was extended. The investigation of XRD indicates that the TiO₂ films are single-crystalline type of rutile. The effect of growth time on optical and electrical properties has been studied. With optimum growth time, dye sensitized solar cell (DSSC) efficiency of 1.48% could be reached using 1.544 $μ$ m long TiO₂ NR arrays as electrode.

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