Simple colloidal synthesis of single-crystal sb-se-s nanotubes with composition dependent band-gap energy in the near-infrared

Research output: Contribution to journalArticle

60 Citations (Scopus)

Abstract

We report the first synthesis of high-quality binary and ternary Sb 2Se 3-xS x nanotubes across the entire compositional range from x = 0to3 via a simple, low-cost, colloidal synthetic method of injection of Sb(III)-complex solution into a hot paraffin liquid containing Se, S, or a mixture thereof. In contrast to the classic rolling mechanism, the modular formation of the reported nanotubes follows a four-stage self- seeding process: (i) amorphous nanospheres, (ii) short crystalline nanotubes growing out of relatively large amorphous nanospheres, (iii) long crystalline nanotubes attached to small amorphous nanospheres, and (iv) single-crystal nanotubes. The obtained single-crystal nanotubes have tunable composition, orthorhombic phase, well-defined rectangular cross sections, and growth direction along [001], as revealed by X-ray diffraction, scanning electron microscopy, energy-dispersive X-ray spectroscopy, transmission electron microscopy, and selected area electron diffraction studies. UV-vis-NIR absorption spectroscopy reveals that the optical bandgap energy of the Sb 2Se 3-xS x (0 ≤ x ≤ 3) nanotubes increases quadratically with the sulfur concentration x with these bandgap energies falling in the range from 1.18 to 1.63 eV at the red edge of the solar spectrum. The present study opens a new avenue to low-cost, large-scale synthesis of high quality semiconductor nanotubes with technological applications in solar energy conversion and also for a wide range of optical nanodevices operating in the near-infrared.

Original languageEnglish (US)
Pages (from-to)2015-2020
Number of pages6
JournalNano Letters
Volume9
Issue number5
DOIs
StatePublished - May 13 2009

Fingerprint

Nanotubes
nanotubes
Energy gap
Single crystals
Infrared radiation
single crystals
synthesis
Chemical analysis
Nanospheres
Crystalline materials
solar energy conversion
Mineral Oil
solar spectra
Optical band gaps
paraffins
inoculation
Absorption spectroscopy
Energy conversion
Sulfur
falling

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Mechanical Engineering

Cite this

@article{c874c6fb65124dd39179f02e95439d8c,
title = "Simple colloidal synthesis of single-crystal sb-se-s nanotubes with composition dependent band-gap energy in the near-infrared",
abstract = "We report the first synthesis of high-quality binary and ternary Sb 2Se 3-xS x nanotubes across the entire compositional range from x = 0to3 via a simple, low-cost, colloidal synthetic method of injection of Sb(III)-complex solution into a hot paraffin liquid containing Se, S, or a mixture thereof. In contrast to the classic rolling mechanism, the modular formation of the reported nanotubes follows a four-stage self- seeding process: (i) amorphous nanospheres, (ii) short crystalline nanotubes growing out of relatively large amorphous nanospheres, (iii) long crystalline nanotubes attached to small amorphous nanospheres, and (iv) single-crystal nanotubes. The obtained single-crystal nanotubes have tunable composition, orthorhombic phase, well-defined rectangular cross sections, and growth direction along [001], as revealed by X-ray diffraction, scanning electron microscopy, energy-dispersive X-ray spectroscopy, transmission electron microscopy, and selected area electron diffraction studies. UV-vis-NIR absorption spectroscopy reveals that the optical bandgap energy of the Sb 2Se 3-xS x (0 ≤ x ≤ 3) nanotubes increases quadratically with the sulfur concentration x with these bandgap energies falling in the range from 1.18 to 1.63 eV at the red edge of the solar spectrum. The present study opens a new avenue to low-cost, large-scale synthesis of high quality semiconductor nanotubes with technological applications in solar energy conversion and also for a wide range of optical nanodevices operating in the near-infrared.",
author = "Zhengtao Deng and Masud Mansuripur and Muscat, {Anthony J}",
year = "2009",
month = "5",
day = "13",
doi = "10.1021/nl9002816",
language = "English (US)",
volume = "9",
pages = "2015--2020",
journal = "Nano Letters",
issn = "1530-6984",
publisher = "American Chemical Society",
number = "5",

}

TY - JOUR

T1 - Simple colloidal synthesis of single-crystal sb-se-s nanotubes with composition dependent band-gap energy in the near-infrared

AU - Deng, Zhengtao

AU - Mansuripur, Masud

AU - Muscat, Anthony J

PY - 2009/5/13

Y1 - 2009/5/13

N2 - We report the first synthesis of high-quality binary and ternary Sb 2Se 3-xS x nanotubes across the entire compositional range from x = 0to3 via a simple, low-cost, colloidal synthetic method of injection of Sb(III)-complex solution into a hot paraffin liquid containing Se, S, or a mixture thereof. In contrast to the classic rolling mechanism, the modular formation of the reported nanotubes follows a four-stage self- seeding process: (i) amorphous nanospheres, (ii) short crystalline nanotubes growing out of relatively large amorphous nanospheres, (iii) long crystalline nanotubes attached to small amorphous nanospheres, and (iv) single-crystal nanotubes. The obtained single-crystal nanotubes have tunable composition, orthorhombic phase, well-defined rectangular cross sections, and growth direction along [001], as revealed by X-ray diffraction, scanning electron microscopy, energy-dispersive X-ray spectroscopy, transmission electron microscopy, and selected area electron diffraction studies. UV-vis-NIR absorption spectroscopy reveals that the optical bandgap energy of the Sb 2Se 3-xS x (0 ≤ x ≤ 3) nanotubes increases quadratically with the sulfur concentration x with these bandgap energies falling in the range from 1.18 to 1.63 eV at the red edge of the solar spectrum. The present study opens a new avenue to low-cost, large-scale synthesis of high quality semiconductor nanotubes with technological applications in solar energy conversion and also for a wide range of optical nanodevices operating in the near-infrared.

AB - We report the first synthesis of high-quality binary and ternary Sb 2Se 3-xS x nanotubes across the entire compositional range from x = 0to3 via a simple, low-cost, colloidal synthetic method of injection of Sb(III)-complex solution into a hot paraffin liquid containing Se, S, or a mixture thereof. In contrast to the classic rolling mechanism, the modular formation of the reported nanotubes follows a four-stage self- seeding process: (i) amorphous nanospheres, (ii) short crystalline nanotubes growing out of relatively large amorphous nanospheres, (iii) long crystalline nanotubes attached to small amorphous nanospheres, and (iv) single-crystal nanotubes. The obtained single-crystal nanotubes have tunable composition, orthorhombic phase, well-defined rectangular cross sections, and growth direction along [001], as revealed by X-ray diffraction, scanning electron microscopy, energy-dispersive X-ray spectroscopy, transmission electron microscopy, and selected area electron diffraction studies. UV-vis-NIR absorption spectroscopy reveals that the optical bandgap energy of the Sb 2Se 3-xS x (0 ≤ x ≤ 3) nanotubes increases quadratically with the sulfur concentration x with these bandgap energies falling in the range from 1.18 to 1.63 eV at the red edge of the solar spectrum. The present study opens a new avenue to low-cost, large-scale synthesis of high quality semiconductor nanotubes with technological applications in solar energy conversion and also for a wide range of optical nanodevices operating in the near-infrared.

UR - http://www.scopus.com/inward/record.url?scp=66449130059&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=66449130059&partnerID=8YFLogxK

U2 - 10.1021/nl9002816

DO - 10.1021/nl9002816

M3 - Article

VL - 9

SP - 2015

EP - 2020

JO - Nano Letters

JF - Nano Letters

SN - 1530-6984

IS - 5

ER -