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Title: Intermediate-band photosensitive device with quantum dots having tunneling barrier embedded in organic matrix

Abstract

A plurality of quantum dots each have a shell. The quantum dots are embedded in an organic matrix. At least the quantum dots and the organic matrix are photoconductive semiconductors. The shell of each quantum dot is arranged as a tunneling barrier to require a charge carrier (an electron or a hole) at a base of the tunneling barrier in the organic matrix to perform quantum mechanical tunneling to reach the respective quantum dot. A first quantum state in each quantum dot is between a lowest unoccupied molecular orbital (LUMO) and a highest occupied molecular orbital (HOMO) of the organic matrix. Wave functions of the first quantum state of the plurality of quantum dots may overlap to form an intermediate band.

Inventors:
 [1]
  1. Ann Arbor, MI
Publication Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
985364
Patent Number(s):
7,414,294
Application Number:
TRN: US201016%%1871
Assignee:
The Trustees of Princeton University (Princeton, NJ) NREL
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CHARGE CARRIERS; ELECTRONS; QUANTUM DOTS; MATRIX MATERIALS; ENCAPSULATION; ORGANIC COMPOUNDS; PHOTOCONDUCTIVITY; WAVE FUNCTIONS

Citation Formats

Forrest, Stephen R. Intermediate-band photosensitive device with quantum dots having tunneling barrier embedded in organic matrix. United States: N. p., 2008. Web.
Forrest, Stephen R. Intermediate-band photosensitive device with quantum dots having tunneling barrier embedded in organic matrix. United States.
Forrest, Stephen R. Tue . "Intermediate-band photosensitive device with quantum dots having tunneling barrier embedded in organic matrix". United States. doi:. https://www.osti.gov/servlets/purl/985364.
@article{osti_985364,
title = {Intermediate-band photosensitive device with quantum dots having tunneling barrier embedded in organic matrix},
author = {Forrest, Stephen R},
abstractNote = {A plurality of quantum dots each have a shell. The quantum dots are embedded in an organic matrix. At least the quantum dots and the organic matrix are photoconductive semiconductors. The shell of each quantum dot is arranged as a tunneling barrier to require a charge carrier (an electron or a hole) at a base of the tunneling barrier in the organic matrix to perform quantum mechanical tunneling to reach the respective quantum dot. A first quantum state in each quantum dot is between a lowest unoccupied molecular orbital (LUMO) and a highest occupied molecular orbital (HOMO) of the organic matrix. Wave functions of the first quantum state of the plurality of quantum dots may overlap to form an intermediate band.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Aug 19 00:00:00 EDT 2008},
month = {Tue Aug 19 00:00:00 EDT 2008}
}

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