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Title: Control of Shell Morphology in p-n Heterostructured Water-Processable Semiconductor Colloids: Toward Extremely Efficient Charge Separation

Abstract

This article describes p-n heterostructured water-borne semiconductor naonoparticles (NPs) with unique surface structures via control of shell morphology. The shell particles, comprising PC60-PC61BM composite, having n-type semiconductor characteristic, notably influence the charge carrier behavior in the core-shell NPs. A one- or two-phase methodology based on a PC60 surfactant-water phase and PC61BM n-type semiconductor-organic phase provided highly specific control over the shell structure of the NPs, which promoted their superior charge separation ability when combined with poly-3-hexyl-thiophene (P3HT). Moreover, the resulting water-borne NPs exhibit shell morphology-dependent carrier quenching and stability, which was characterized via luminescence studies paired with structural analysis. Corresponding to the results, outstanding performances of photovoltaic cells with over 5 % efficiency were achieved. The results suggest that the surrounding shell environments, such as the shell structure, and its electronic charge density, were crucial in determining the overall activity of the core-shell p-n heterostructured NPs. Thus, this work provides a new protocol in the current fields of water-based organic semiconductor colloids.

Authors:
ORCiD logo [1];  [2];  [1]
  1. Center for Nanoscale Materials, Argonne National Laboratory, Lemont IL 60439 USA
  2. Center for Nanoscale Materials, Argonne National Laboratory, Lemont IL 60439 USA; Department of Chemistry, Northwestern University, Evanston IL 60208 USA
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1493422
DOE Contract Number:  
AC02-06CH11357
Resource Type:
Journal Article
Journal Name:
Small
Additional Journal Information:
Journal Volume: 15; Journal Issue: 2; Journal ID: ISSN 1613-6810
Publisher:
Wiley
Country of Publication:
United States
Language:
English
Subject:
charge separation; organic semiconducting nanoparticles; p-n heterostructure; water-borne colloids; water-processable nanoparticles

Citation Formats

Kim, Yu Jin, Schaller, Richard D., and Fry, Harry Christopher. Control of Shell Morphology in p-n Heterostructured Water-Processable Semiconductor Colloids: Toward Extremely Efficient Charge Separation. United States: N. p., 2018. Web. doi:10.1002/smll.201803563.
Kim, Yu Jin, Schaller, Richard D., & Fry, Harry Christopher. Control of Shell Morphology in p-n Heterostructured Water-Processable Semiconductor Colloids: Toward Extremely Efficient Charge Separation. United States. doi:10.1002/smll.201803563.
Kim, Yu Jin, Schaller, Richard D., and Fry, Harry Christopher. Wed . "Control of Shell Morphology in p-n Heterostructured Water-Processable Semiconductor Colloids: Toward Extremely Efficient Charge Separation". United States. doi:10.1002/smll.201803563.
@article{osti_1493422,
title = {Control of Shell Morphology in p-n Heterostructured Water-Processable Semiconductor Colloids: Toward Extremely Efficient Charge Separation},
author = {Kim, Yu Jin and Schaller, Richard D. and Fry, Harry Christopher},
abstractNote = {This article describes p-n heterostructured water-borne semiconductor naonoparticles (NPs) with unique surface structures via control of shell morphology. The shell particles, comprising PC60-PC61BM composite, having n-type semiconductor characteristic, notably influence the charge carrier behavior in the core-shell NPs. A one- or two-phase methodology based on a PC60 surfactant-water phase and PC61BM n-type semiconductor-organic phase provided highly specific control over the shell structure of the NPs, which promoted their superior charge separation ability when combined with poly-3-hexyl-thiophene (P3HT). Moreover, the resulting water-borne NPs exhibit shell morphology-dependent carrier quenching and stability, which was characterized via luminescence studies paired with structural analysis. Corresponding to the results, outstanding performances of photovoltaic cells with over 5 % efficiency were achieved. The results suggest that the surrounding shell environments, such as the shell structure, and its electronic charge density, were crucial in determining the overall activity of the core-shell p-n heterostructured NPs. Thus, this work provides a new protocol in the current fields of water-based organic semiconductor colloids.},
doi = {10.1002/smll.201803563},
journal = {Small},
issn = {1613-6810},
number = 2,
volume = 15,
place = {United States},
year = {2018},
month = {11}
}