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Title: Photoluminescence Brightening of Isolated Single-Walled Carbon Nanotubes

Abstract

Addition of dithiothreitol (DTT) to a suspension consisting of either DNA or sodium dodecyl sulfate (SDS) wrapped single-walled carbon nanotubes (SWCNTs) caused significant photoluminescence (PL) brightening from the SWCNTs, while PL quenching to different extents was observed for other surfactant-SWCNT suspensions. PL lifetime studies with high temporal resolution show that addition of DTT mitigates non-radiative decay processes, but also surprisingly increases the radiative decay rate for DNA- and SDS-SWCNTs. There are completely opposite effects on the decay rates found for the other surfactant-SWCNTs and show PL quenching. Here, we propose that the PL brightening results from a surfactant reorganization upon DTT addition. TOC

Authors:
 [1]; ORCiD logo [2]
  1. Univ. of Rochester, NY (United States). Dept. of Chemistry
  2. Univ. of Rochester, NY (United States). Dept. of Chemistry, Inst. of Optics
Publication Date:
Research Org.:
Univ. of Rochester, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1394773
Grant/Contract Number:  
FG02-06ER15821
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Journal of Physical Chemistry Letters
Additional Journal Information:
Journal Volume: 8; Journal Issue: 19; Journal ID: ISSN 1948-7185
Publisher:
American Chemical Society
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 77 NANOSCIENCE AND NANOTECHNOLOGY

Citation Formats

Hou, Zhentao, and Krauss, Todd D. Photoluminescence Brightening of Isolated Single-Walled Carbon Nanotubes. United States: N. p., 2017. Web. doi:10.1021/acs.jpclett.7b01890.
Hou, Zhentao, & Krauss, Todd D. Photoluminescence Brightening of Isolated Single-Walled Carbon Nanotubes. United States. doi:10.1021/acs.jpclett.7b01890.
Hou, Zhentao, and Krauss, Todd D. Fri . "Photoluminescence Brightening of Isolated Single-Walled Carbon Nanotubes". United States. doi:10.1021/acs.jpclett.7b01890. https://www.osti.gov/servlets/purl/1394773.
@article{osti_1394773,
title = {Photoluminescence Brightening of Isolated Single-Walled Carbon Nanotubes},
author = {Hou, Zhentao and Krauss, Todd D.},
abstractNote = {Addition of dithiothreitol (DTT) to a suspension consisting of either DNA or sodium dodecyl sulfate (SDS) wrapped single-walled carbon nanotubes (SWCNTs) caused significant photoluminescence (PL) brightening from the SWCNTs, while PL quenching to different extents was observed for other surfactant-SWCNT suspensions. PL lifetime studies with high temporal resolution show that addition of DTT mitigates non-radiative decay processes, but also surprisingly increases the radiative decay rate for DNA- and SDS-SWCNTs. There are completely opposite effects on the decay rates found for the other surfactant-SWCNTs and show PL quenching. Here, we propose that the PL brightening results from a surfactant reorganization upon DTT addition. TOC},
doi = {10.1021/acs.jpclett.7b01890},
journal = {Journal of Physical Chemistry Letters},
number = 19,
volume = 8,
place = {United States},
year = {Fri Sep 22 00:00:00 EDT 2017},
month = {Fri Sep 22 00:00:00 EDT 2017}
}

Journal Article:
Free Publicly Available Full Text
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