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Author Huang, Hui ♦ Pan, Lei ♦ Lim, Chiew Keat ♦ Gong, Hua ♦ Guo, Jun ♦ Tse, Man Siu ♦ Tan, Ooi Kiang
Source World Health Organization (WHO)-Global Index Medicus
Content type Text
Publisher Wiley-VCH
File Format HTM / HTML
Language English
Difficulty Level Medium
Subject Domain (in DDC) Natural sciences & mathematics ♦ Chemistry & allied sciences ♦ Life sciences; biology ♦ Biochemistry ♦ Technology ♦ Medicine & health ♦ Pharmacology and therapeutics ♦ Diseases ♦ Agriculture & related technologies
Subject Domain (in MeSH) Inorganic Chemicals ♦ Chemicals and Drugs ♦ Equipment and Supplies ♦ Analytical, Diagnostic and Therapeutic Techniques and Equipment ♦ Technology, Industry, and Agriculture ♦ Technology and Food and Beverages
Subject Keyword Discipline Nanotechnology ♦ Nanotubes ♦ Chemistry ♦ Quantum Dots ♦ Titanium ♦ Journal Article ♦ Research Support, Non-u.s. Gov't
Abstract TiO2 nanorod (NR) and nanotube (NT) arrays grown on transparent conductive substrates are attractive electrode for solar cells. In this paper, TiO2 NR arrays are hydrothermally grown on FTO substrate, and are in situ converted into NT arrays by hydrothermally etching. The TiO2 NR arrays are reported as single crystalline, but the TiO2 NR arrays are demonstrated to be polycrystalline with a bundle of 2-5 nm single crystalline nanocolumns grown along [001] throughout the whole NR from bottom to top. TiO2 NRs can be converted to NTs by hydrothermal selective etching of the (001) core and remaining the inert sidewall of (110) face. A growth mechanism of the NR and NT arrays is proposed. Quantum dot-sensitized solar cells (QDSCs) are fabricated by coating CdSe QDs on to the TiO2 arrays. After conversion from NRs to NTs, more QDs can be filled in the NTs and the energy conversion efficiency of the QDSCs almost double.
Description Country affiliation: Singapore
Author Affiliation: Huang H ( Singapore Institute of Manufacturing Technology, 71 Nanyang Drive, 638075, Singapore. hhuang@SIMTech.a-star.edu.sg.)
ISSN 16136810
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Reading ♦ Research ♦ Self Learning
Interactivity Type Expositive
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2013-09-23
Publisher Place Germany
e-ISSN 16136829
Journal Small
Volume Number 9
Issue Number 18


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Source: WHO-Global Index Medicus