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Title: Unique p-n Heterostructured Water-Borne Nanoparticles Exhibiting Impressive Charge-Separation Ability

Abstract

The ecofriendly synthesis of organic semiconductors with heterojunctions is of interest and requires surfactants to stabilize colloidal nanoparticles (NPs) in aqueous solution. The use of conventional surfactants results in p-n heterostructured NPs, in which both p- and n-type semiconductors are phase separated and confined within a core surrounded by the surfactant shell. The performances of these devices, however, are not comparable to those of solid organic semiconductor films. Further efforts are required to understand and control the morphological structure of the nanoparticles to improve their performances. Here, by using a new class of polyethyleneglycol-based surfactant, PEG-C60, we synthesized unique p-n heterostructured water-borne NPs that comprise a p-type semiconductor core and an n-type PEG-C60 shell. We demonstrate that the morphology gives rise to charge separation superior to conventional water-borne NPs. These PEG-C60-based water-borne NPs can, thus, provide a new paradigm in the current field of water-based organic semiconductor colloids.

Authors:
ORCiD logo [1];  [2]
  1. Center for Nanoscale Materials, Argonne National Laboratory, Lemont IL 60439 USA
  2. Advanced Photon Source, Argonne National Laboratory, Lemont IL 60439 USA
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1461468
DOE Contract Number:  
AC02-06CH11357
Resource Type:
Journal Article
Journal Name:
ChemSusChem
Additional Journal Information:
Journal Volume: 11; Journal Issue: 10; Journal ID: ISSN 1864-5631
Publisher:
ChemPubSoc Europe
Country of Publication:
United States
Language:
English
Subject:
Water-borne nanoparticles, Water-based colloids, Polymer nanoparticles, p-n heterostructures, Charge separation

Citation Formats

Kim, Yu Jin, and Lee, Byeongdu. Unique p-n Heterostructured Water-Borne Nanoparticles Exhibiting Impressive Charge-Separation Ability. United States: N. p., 2018. Web. doi:10.1002/cssc.201800091.
Kim, Yu Jin, & Lee, Byeongdu. Unique p-n Heterostructured Water-Borne Nanoparticles Exhibiting Impressive Charge-Separation Ability. United States. doi:10.1002/cssc.201800091.
Kim, Yu Jin, and Lee, Byeongdu. Tue . "Unique p-n Heterostructured Water-Borne Nanoparticles Exhibiting Impressive Charge-Separation Ability". United States. doi:10.1002/cssc.201800091.
@article{osti_1461468,
title = {Unique p-n Heterostructured Water-Borne Nanoparticles Exhibiting Impressive Charge-Separation Ability},
author = {Kim, Yu Jin and Lee, Byeongdu},
abstractNote = {The ecofriendly synthesis of organic semiconductors with heterojunctions is of interest and requires surfactants to stabilize colloidal nanoparticles (NPs) in aqueous solution. The use of conventional surfactants results in p-n heterostructured NPs, in which both p- and n-type semiconductors are phase separated and confined within a core surrounded by the surfactant shell. The performances of these devices, however, are not comparable to those of solid organic semiconductor films. Further efforts are required to understand and control the morphological structure of the nanoparticles to improve their performances. Here, by using a new class of polyethyleneglycol-based surfactant, PEG-C60, we synthesized unique p-n heterostructured water-borne NPs that comprise a p-type semiconductor core and an n-type PEG-C60 shell. We demonstrate that the morphology gives rise to charge separation superior to conventional water-borne NPs. These PEG-C60-based water-borne NPs can, thus, provide a new paradigm in the current field of water-based organic semiconductor colloids.},
doi = {10.1002/cssc.201800091},
journal = {ChemSusChem},
issn = {1864-5631},
number = 10,
volume = 11,
place = {United States},
year = {2018},
month = {4}
}

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