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Title: Tunable Quantum Dot Solids: Impact of Interparticle Interactions on Bulk Properties

Abstract

QD-solids comprising self-assembled semiconductor nanocrystals such as CdSe are currently under investigation for use in a wide array of applications including light emitting diodes, solar cells, field effect transistors, photodetectors, and biosensors. The goal of this LDRD project was develop a fundamental understanding of the relationship between nanoparticle interactions and the different regimes of charge and energy transport in semiconductor quantum dot (QD) solids. Interparticle spacing was tuned through the application of hydrostatic pressure in a diamond anvil cell, and the impact on interparticle interactions was probed using x-ray scattering and a variety of static and transient optical spectroscopies. During the course of this LDRD, we discovered a new, previously unknown, route to synthesize semiconductor quantum wires using high pressure sintering of self-assembled quantum dot crystals. We believe that this new, pressure driven synthesis approach holds great potential as a new tool for nanomaterials synthesis and engineering.

Authors:
 [1];  [1];  [1];  [1];  [1];  [1]
  1. Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1221577
Report Number(s):
SAND2015-8043
603922
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English

Citation Formats

Sinclair, Michael B., Fan, Hongyou, Brener, Igal, Liu, Sheng, Luk, Ting S., and Li, Binsong. Tunable Quantum Dot Solids: Impact of Interparticle Interactions on Bulk Properties. United States: N. p., 2015. Web. doi:10.2172/1221577.
Sinclair, Michael B., Fan, Hongyou, Brener, Igal, Liu, Sheng, Luk, Ting S., & Li, Binsong. Tunable Quantum Dot Solids: Impact of Interparticle Interactions on Bulk Properties. United States. https://doi.org/10.2172/1221577
Sinclair, Michael B., Fan, Hongyou, Brener, Igal, Liu, Sheng, Luk, Ting S., and Li, Binsong. 2015. "Tunable Quantum Dot Solids: Impact of Interparticle Interactions on Bulk Properties". United States. https://doi.org/10.2172/1221577. https://www.osti.gov/servlets/purl/1221577.
@article{osti_1221577,
title = {Tunable Quantum Dot Solids: Impact of Interparticle Interactions on Bulk Properties},
author = {Sinclair, Michael B. and Fan, Hongyou and Brener, Igal and Liu, Sheng and Luk, Ting S. and Li, Binsong},
abstractNote = {QD-solids comprising self-assembled semiconductor nanocrystals such as CdSe are currently under investigation for use in a wide array of applications including light emitting diodes, solar cells, field effect transistors, photodetectors, and biosensors. The goal of this LDRD project was develop a fundamental understanding of the relationship between nanoparticle interactions and the different regimes of charge and energy transport in semiconductor quantum dot (QD) solids. Interparticle spacing was tuned through the application of hydrostatic pressure in a diamond anvil cell, and the impact on interparticle interactions was probed using x-ray scattering and a variety of static and transient optical spectroscopies. During the course of this LDRD, we discovered a new, previously unknown, route to synthesize semiconductor quantum wires using high pressure sintering of self-assembled quantum dot crystals. We believe that this new, pressure driven synthesis approach holds great potential as a new tool for nanomaterials synthesis and engineering.},
doi = {10.2172/1221577},
url = {https://www.osti.gov/biblio/1221577}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Sep 01 00:00:00 EDT 2015},
month = {Tue Sep 01 00:00:00 EDT 2015}
}