Synthesis of TiO2 Nanorods for Schottky-Type UV-Photodetectors and Third-Generation Solar Cells

Ozge Guller; Elif Peksu; Hakan Karaagac

doi:10.1002/pssa.201700404

Synthesis of TiO₂ Nanorods for Schottky-Type UV-Photodetectors and Third-Generation Solar Cells

Ozge Guller, Elif Peksu, Hakan Karaagac^*

^*Bu çalışma için yazışmadan sorumlu yazar

Fizik Mühendisliği Bölümü

Istanbul Technical University

Araştırma sonucu: Dergiye katkı › Makale › bilirkişi

16 Atıf (Scopus)

Özet

TiO₂ nanorods (NRs) are successfully synthesized on fluorine-doped tin-oxide pre-coated glass substrates via hydrothermal technique. The effect of growth parameters on morphology of the synthesized NRs is investigated in detail. The results revealed that critical values for temperature, growth-time, acidity, and precursor concentration are required for the synthesis of well-aligned TiO₂ NRs. Following the optimization of growth parameters, the well-oriented TiO₂ NRS are decorated with a thin-sputtered layer of CdTe (CdCl₂-treated) to form a third generation inorganic-sensitized solar cell. The power conversion efficiency associated with the constructed solar cell is found to be 0.42%, which is exactly 3.5 times larger than that obtained for the non-CdCl₂-treated device structure. As a second part of this study, a Schottky-type Ag/TiO₂ UV-photodetector is fabricated, which exhibited a drastic increase in photocurrent under UV-light exposure, with a responsivity of ∼3 A W⁻¹ for 380 nm at −1 V.

Orijinal dil	İngilizce
Makale numarası	1700404
Dergi	Physica Status Solidi (A) Applications and Materials Science
Hacim	215
Basın numarası	4
DOI'lar	https://doi.org/10.1002/pssa.201700404
Yayın durumu	Yayınlandı - 21 Şub 2018

Bibliyografik not

Publisher Copyright:
© 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

Finansman

This work was supported by Istanbul Technical University (BAP:39349). We gratefully acknowledge Dr. M. Parlak and A. K. Okyay for their help in all our experimental work and measurements.

Finansörler	Finansör numarası
Istanbul Teknik Üniversitesi	BAP:39349

BM SKH

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Belgeye Erişim

10.1002/pssa.201700404

Diğer Dosyalar ve Linkler

Link to publication in Scopus

Alıntı Yap

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title = "Synthesis of TiO2 Nanorods for Schottky-Type UV-Photodetectors and Third-Generation Solar Cells",

abstract = "TiO2 nanorods (NRs) are successfully synthesized on fluorine-doped tin-oxide pre-coated glass substrates via hydrothermal technique. The effect of growth parameters on morphology of the synthesized NRs is investigated in detail. The results revealed that critical values for temperature, growth-time, acidity, and precursor concentration are required for the synthesis of well-aligned TiO2 NRs. Following the optimization of growth parameters, the well-oriented TiO2 NRS are decorated with a thin-sputtered layer of CdTe (CdCl2-treated) to form a third generation inorganic-sensitized solar cell. The power conversion efficiency associated with the constructed solar cell is found to be 0.42%, which is exactly 3.5 times larger than that obtained for the non-CdCl2-treated device structure. As a second part of this study, a Schottky-type Ag/TiO2 UV-photodetector is fabricated, which exhibited a drastic increase in photocurrent under UV-light exposure, with a responsivity of ∼3 A W−1 for 380 nm at −1 V.",

keywords = "nanorods, Schottky type, solar cells, UV photodetectors",

author = "Ozge Guller and Elif Peksu and Hakan Karaagac",

note = "Publisher Copyright: {\textcopyright} 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim",

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doi = "10.1002/pssa.201700404",

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T1 - Synthesis of TiO2 Nanorods for Schottky-Type UV-Photodetectors and Third-Generation Solar Cells

AU - Guller, Ozge

AU - Peksu, Elif

AU - Karaagac, Hakan

PY - 2018/2/21

Y1 - 2018/2/21

N2 - TiO2 nanorods (NRs) are successfully synthesized on fluorine-doped tin-oxide pre-coated glass substrates via hydrothermal technique. The effect of growth parameters on morphology of the synthesized NRs is investigated in detail. The results revealed that critical values for temperature, growth-time, acidity, and precursor concentration are required for the synthesis of well-aligned TiO2 NRs. Following the optimization of growth parameters, the well-oriented TiO2 NRS are decorated with a thin-sputtered layer of CdTe (CdCl2-treated) to form a third generation inorganic-sensitized solar cell. The power conversion efficiency associated with the constructed solar cell is found to be 0.42%, which is exactly 3.5 times larger than that obtained for the non-CdCl2-treated device structure. As a second part of this study, a Schottky-type Ag/TiO2 UV-photodetector is fabricated, which exhibited a drastic increase in photocurrent under UV-light exposure, with a responsivity of ∼3 A W−1 for 380 nm at −1 V.

AB - TiO2 nanorods (NRs) are successfully synthesized on fluorine-doped tin-oxide pre-coated glass substrates via hydrothermal technique. The effect of growth parameters on morphology of the synthesized NRs is investigated in detail. The results revealed that critical values for temperature, growth-time, acidity, and precursor concentration are required for the synthesis of well-aligned TiO2 NRs. Following the optimization of growth parameters, the well-oriented TiO2 NRS are decorated with a thin-sputtered layer of CdTe (CdCl2-treated) to form a third generation inorganic-sensitized solar cell. The power conversion efficiency associated with the constructed solar cell is found to be 0.42%, which is exactly 3.5 times larger than that obtained for the non-CdCl2-treated device structure. As a second part of this study, a Schottky-type Ag/TiO2 UV-photodetector is fabricated, which exhibited a drastic increase in photocurrent under UV-light exposure, with a responsivity of ∼3 A W−1 for 380 nm at −1 V.

KW - nanorods

KW - Schottky type

KW - solar cells

KW - UV photodetectors

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