Apparent two-dimensional behavior of TiO2 nanotubes revealed by light absorption and luminescence

Dmitry V. Bavykin; Sergey N. Gordeev; Andriy V. Moskalenko; Alexei A. Lapkin; Frank C. Walsh

doi:10.1021/jp050762m

Apparent two-dimensional behavior of TiO₂ nanotubes revealed by light absorption and luminescence

Dmitry V. Bavykin
, Sergey N. Gordeev
, Andriy V. Moskalenko
, Alexei A. Lapkin
, Frank C. Walsh

Research output: Contribution to journal › Article › peer-review

132 Citations (SciVal)

Abstract

Optical absorption and photoluminescence (PL) properties of colloidal TiO₂ nanotubes, produced by the alkali hydrothermal method, were studied at room temp. in the range 300-700 nm. Nanotubes having an internal diam. in the range 2.5-5 nm have very similar optical properties, in contrast to the expected behavior for quasi-1-D systems. This is explained by the complete thermal smearing of all 1-D effects, due to the large effective mass of charge carriers in TiO₂, resulting in an apparent 2-D behavior of TiO₂ nanotubes. [on SciFinder (R)]

Original language	English
Pages (from-to)	8565-8569
Number of pages	5
Journal	Journal of Physical Chemistry B
Volume	109
Issue number	18
DOIs	https://doi.org/10.1021/jp050762m
Publication status	Published - 2005

Bibliographical note

ID number: ISI:000228982900008

Keywords

Luminescence (diam.-dependent
Nanotubes
Photoexcitation (luminescence excitation
titanium oxide nanotube absorption photoluminescence diam size effect
Band structure
Quantum size effect (nanotube diam.
of TiO2 nanotubes)
Optical absorption (apparent two-dimensional behavior of TiO2 nanotubes revealed by light absorption and luminescence)
UV and visible spectra (absorption
Surface structure (of TiO2 nanotubes)
apparent two-dimensional behavior of TiO2 nanotubes revealed by light absorption and luminescence)

Access to Document

10.1021/jp050762m

Cite this

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title = "Apparent two-dimensional behavior of TiO2 nanotubes revealed by light absorption and luminescence",

abstract = "Optical absorption and photoluminescence (PL) properties of colloidal TiO2 nanotubes, produced by the alkali hydrothermal method, were studied at room temp. in the range 300-700 nm. Nanotubes having an internal diam. in the range 2.5-5 nm have very similar optical properties, in contrast to the expected behavior for quasi-1-D systems. This is explained by the complete thermal smearing of all 1-D effects, due to the large effective mass of charge carriers in TiO2, resulting in an apparent 2-D behavior of TiO2 nanotubes. [on SciFinder (R)]",

keywords = "Luminescence (diam.-dependent, Nanotubes, Photoexcitation (luminescence excitation, titanium oxide nanotube absorption photoluminescence diam size effect, Band structure, Quantum size effect (nanotube diam., of TiO2 nanotubes), Optical absorption (apparent two-dimensional behavior of TiO2 nanotubes revealed by light absorption and luminescence), UV and visible spectra (absorption, Surface structure (of TiO2 nanotubes), apparent two-dimensional behavior of TiO2 nanotubes revealed by light absorption and luminescence)",

author = "Bavykin, \{Dmitry V.\} and Gordeev, \{Sergey N.\} and Moskalenko, \{Andriy V.\} and Lapkin, \{Alexei A.\} and Walsh, \{Frank C.\}",

note = "ID number: ISI:000228982900008",

year = "2005",

doi = "10.1021/jp050762m",

language = "English",

volume = "109",

pages = "8565--8569",

journal = "Journal of Physical Chemistry B",

issn = "1520-6106",

publisher = "American Chemical Society",

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TY - JOUR

T1 - Apparent two-dimensional behavior of TiO2 nanotubes revealed by light absorption and luminescence

AU - Bavykin, Dmitry V.

AU - Gordeev, Sergey N.

AU - Moskalenko, Andriy V.

AU - Lapkin, Alexei A.

AU - Walsh, Frank C.

N1 - ID number: ISI:000228982900008

PY - 2005

Y1 - 2005

N2 - Optical absorption and photoluminescence (PL) properties of colloidal TiO2 nanotubes, produced by the alkali hydrothermal method, were studied at room temp. in the range 300-700 nm. Nanotubes having an internal diam. in the range 2.5-5 nm have very similar optical properties, in contrast to the expected behavior for quasi-1-D systems. This is explained by the complete thermal smearing of all 1-D effects, due to the large effective mass of charge carriers in TiO2, resulting in an apparent 2-D behavior of TiO2 nanotubes. [on SciFinder (R)]

AB - Optical absorption and photoluminescence (PL) properties of colloidal TiO2 nanotubes, produced by the alkali hydrothermal method, were studied at room temp. in the range 300-700 nm. Nanotubes having an internal diam. in the range 2.5-5 nm have very similar optical properties, in contrast to the expected behavior for quasi-1-D systems. This is explained by the complete thermal smearing of all 1-D effects, due to the large effective mass of charge carriers in TiO2, resulting in an apparent 2-D behavior of TiO2 nanotubes. [on SciFinder (R)]

KW - Luminescence (diam.-dependent

KW - Nanotubes

KW - Photoexcitation (luminescence excitation

KW - titanium oxide nanotube absorption photoluminescence diam size effect

KW - Band structure

KW - Quantum size effect (nanotube diam.

KW - of TiO2 nanotubes)

KW - Optical absorption (apparent two-dimensional behavior of TiO2 nanotubes revealed by light absorption and luminescence)

KW - UV and visible spectra (absorption

KW - Surface structure (of TiO2 nanotubes)

KW - apparent two-dimensional behavior of TiO2 nanotubes revealed by light absorption and luminescence)

UR - http://dx.doi.org/10.1021/jp050762m

U2 - 10.1021/jp050762m

DO - 10.1021/jp050762m

M3 - Article

SN - 1520-6106

VL - 109

SP - 8565

EP - 8569

JO - Journal of Physical Chemistry B

JF - Journal of Physical Chemistry B

IS - 18

ER -