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Photographic ScienceAdvances in Nanoparticles, J-Aggregates, Dye Sensitization, and Organic Devices$
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Tadaaki Tani

Print publication date: 2011

Print ISBN-13: 9780199572953

Published to Oxford Scholarship Online: January 2012

DOI: 10.1093/acprof:oso/9780199572953.001.0001

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PRINTED FROM OXFORD SCHOLARSHIP ONLINE (oxford.universitypressscholarship.com). (c) Copyright Oxford University Press, 2021. All Rights Reserved. An individual user may print out a PDF of a single chapter of a monograph in OSO for personal use. date: 17 January 2022

Organic Semiconductors and J-Aggregated Dyes

Organic Semiconductors and J-Aggregated Dyes

Chapter:
(p.250) 10 Organic Semiconductors and J-Aggregated Dyes
Source:
Photographic Science
Author(s):

Tadaaki Tani

Publisher:
Oxford University Press
DOI:10.1093/acprof:oso/9780199572953.003.0010

Structure, property, and performance of organic semiconductors are analyzed in light of those of J-aggregated dyes on AgX grains for color films, including molecular alignment in their layers, absorption spectra, electronic structure of organic layers and their interfaces with substrates, charge transfer across the above interfaces, production process, and durability of organic devices. It is noted that single-crystalline J-aggregated mono-molecular dye layers on tabular AgX grains as substrates for color films serve as organic devices with efficient light absorption, long diffusion length of excitons, and efficient dissociation of excitons for charge separation followed by rapid transport of electronic carriers in the substrates.

Keywords:   organic semiconductor, J-aggregate, dye sensitization, exciton, charge separation, electron transfer, interface, electronic transport

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