date: 2015-01-26T10:57:10Z
pdf:PDFVersion: 1.4
pdf:docinfo:title: Solid-State Organization and Ambipolar Field-Effect Transistors of Benzothiadiazole-Cyclopentadithiophene Copolymer with Long Branched Alkyl Side Chains
xmp:CreatorTool: PScript5.dll Version 5.2.2
access_permission:can_print_degraded: true
subject: The solid-state organization of a benzothiadiazole-cyclopentadithiophene copolymer with long, branched decyl-tetradecyl side chains (CDT-BTZ-C14,10) is investigated. 
The C14,10 substituents are sterically demanding and increase the ?-stacking distance to 0.40 nm from 0.37 nm for the same polymer with linear hexadecyls (C16). Despite the bulkiness, the C14,10 side chains tend to crystallize, leading to a small chain-to-chain distance between lamellae stacks and to a crystal-like microstructure in the thin film. Interestingly, field-effect transistors based on solution processed layers of CDT-BTZ-C14,10 show ambipolar behavior in contrast to CDT-BTZ-C16 with linear side chains, for which hole transport was previously observed. Due to the increased ?-stacking distance, the mobilities are only 6 × 10?4 cm²/Vs for electrons and 6 × 10?5 cm²/Vs for holes, while CDT-BTZ-C16 leads to values up to 5.5 cm²/Vs. The ambipolarity is attributed to a lateral shift between stacked backbones provoked by the bulky C14,10 side chains. This reorganization is supposed to change the transfer integrals between the C16 and C14,10 substituted polymers. This work shows that the electronic behavior in devices of one single conjugated polymer (in this case CDT-BTZ) can be controlled by the right choice of the substituents to place the backbones in the desired packing.
dc:format: application/pdf; version=1.4
pdf:docinfo:creator_tool: PScript5.dll Version 5.2.2
access_permission:fill_in_form: true
pdf:encrypted: false
dc:title: Solid-State Organization and Ambipolar Field-Effect Transistors of Benzothiadiazole-Cyclopentadithiophene Copolymer with Long Branched Alkyl Side Chains
modified: 2015-01-26T10:57:10Z
cp:subject: The solid-state organization of a benzothiadiazole-cyclopentadithiophene copolymer with long, branched decyl-tetradecyl side chains (CDT-BTZ-C14,10) is investigated. 
The C14,10 substituents are sterically demanding and increase the ?-stacking distance to 0.40 nm from 0.37 nm for the same polymer with linear hexadecyls (C16). Despite the bulkiness, the C14,10 side chains tend to crystallize, leading to a small chain-to-chain distance between lamellae stacks and to a crystal-like microstructure in the thin film. Interestingly, field-effect transistors based on solution processed layers of CDT-BTZ-C14,10 show ambipolar behavior in contrast to CDT-BTZ-C16 with linear side chains, for which hole transport was previously observed. Due to the increased ?-stacking distance, the mobilities are only 6 × 10?4 cm²/Vs for electrons and 6 × 10?5 cm²/Vs for holes, while CDT-BTZ-C16 leads to values up to 5.5 cm²/Vs. The ambipolarity is attributed to a lateral shift between stacked backbones provoked by the bulky C14,10 side chains. This reorganization is supposed to change the transfer integrals between the C16 and C14,10 substituted polymers. This work shows that the electronic behavior in devices of one single conjugated polymer (in this case CDT-BTZ) can be controlled by the right choice of the substituents to place the backbones in the desired packing.
pdf:docinfo:subject: The solid-state organization of a benzothiadiazole-cyclopentadithiophene copolymer with long, branched decyl-tetradecyl side chains (CDT-BTZ-C14,10) is investigated. 
The C14,10 substituents are sterically demanding and increase the ?-stacking distance to 0.40 nm from 0.37 nm for the same polymer with linear hexadecyls (C16). Despite the bulkiness, the C14,10 side chains tend to crystallize, leading to a small chain-to-chain distance between lamellae stacks and to a crystal-like microstructure in the thin film. Interestingly, field-effect transistors based on solution processed layers of CDT-BTZ-C14,10 show ambipolar behavior in contrast to CDT-BTZ-C16 with linear side chains, for which hole transport was previously observed. Due to the increased ?-stacking distance, the mobilities are only 6 × 10?4 cm²/Vs for electrons and 6 × 10?5 cm²/Vs for holes, while CDT-BTZ-C16 leads to values up to 5.5 cm²/Vs. The ambipolarity is attributed to a lateral shift between stacked backbones provoked by the bulky C14,10 side chains. This reorganization is supposed to change the transfer integrals between the C16 and C14,10 substituted polymers. This work shows that the electronic behavior in devices of one single conjugated polymer (in this case CDT-BTZ) can be controlled by the right choice of the substituents to place the backbones in the desired packing.
pdf:docinfo:creator: Wojciech Pisula
meta:author: Hoi Nok Tsao
meta:creation-date: 2013-06-19T07:25:14Z
created: 2013-06-19T07:25:14Z
access_permission:extract_for_accessibility: true
Creation-Date: 2013-06-19T07:25:14Z
Author: Hoi Nok Tsao
producer: Acrobat Distiller 10.0.0 (Windows)
pdf:docinfo:producer: Acrobat Distiller 10.0.0 (Windows)
pdf:unmappedUnicodeCharsPerPage: 0
dc:description: The solid-state organization of a benzothiadiazole-cyclopentadithiophene copolymer with long, branched decyl-tetradecyl side chains (CDT-BTZ-C14,10) is investigated. 
The C14,10 substituents are sterically demanding and increase the ?-stacking distance to 0.40 nm from 0.37 nm for the same polymer with linear hexadecyls (C16). Despite the bulkiness, the C14,10 side chains tend to crystallize, leading to a small chain-to-chain distance between lamellae stacks and to a crystal-like microstructure in the thin film. Interestingly, field-effect transistors based on solution processed layers of CDT-BTZ-C14,10 show ambipolar behavior in contrast to CDT-BTZ-C16 with linear side chains, for which hole transport was previously observed. Due to the increased ?-stacking distance, the mobilities are only 6 × 10?4 cm²/Vs for electrons and 6 × 10?5 cm²/Vs for holes, while CDT-BTZ-C16 leads to values up to 5.5 cm²/Vs. The ambipolarity is attributed to a lateral shift between stacked backbones provoked by the bulky C14,10 side chains. This reorganization is supposed to change the transfer integrals between the C16 and C14,10 substituted polymers. This work shows that the electronic behavior in devices of one single conjugated polymer (in this case CDT-BTZ) can be controlled by the right choice of the substituents to place the backbones in the desired packing.
Keywords: organic electronics; ambipolar field-effect transistor; self-assembly; solution processing; donor-acceptor polymer
access_permission:modify_annotations: true
dc:creator: Hoi Nok Tsao
description: The solid-state organization of a benzothiadiazole-cyclopentadithiophene copolymer with long, branched decyl-tetradecyl side chains (CDT-BTZ-C14,10) is investigated. 
The C14,10 substituents are sterically demanding and increase the ?-stacking distance to 0.40 nm from 0.37 nm for the same polymer with linear hexadecyls (C16). Despite the bulkiness, the C14,10 side chains tend to crystallize, leading to a small chain-to-chain distance between lamellae stacks and to a crystal-like microstructure in the thin film. Interestingly, field-effect transistors based on solution processed layers of CDT-BTZ-C14,10 show ambipolar behavior in contrast to CDT-BTZ-C16 with linear side chains, for which hole transport was previously observed. Due to the increased ?-stacking distance, the mobilities are only 6 × 10?4 cm²/Vs for electrons and 6 × 10?5 cm²/Vs for holes, while CDT-BTZ-C16 leads to values up to 5.5 cm²/Vs. The ambipolarity is attributed to a lateral shift between stacked backbones provoked by the bulky C14,10 side chains. This reorganization is supposed to change the transfer integrals between the C16 and C14,10 substituted polymers. This work shows that the electronic behavior in devices of one single conjugated polymer (in this case CDT-BTZ) can be controlled by the right choice of the substituents to place the backbones in the desired packing.
dcterms:created: 2013-06-19T07:25:14Z
Last-Modified: 2015-01-26T10:57:10Z
dcterms:modified: 2015-01-26T10:57:10Z
title: Solid-State Organization and Ambipolar Field-Effect Transistors of Benzothiadiazole-Cyclopentadithiophene Copolymer with Long Branched Alkyl Side Chains
xmpMM:DocumentID: uuid:4eb78834-d3c5-4d1b-afa3-570ba56929ad
Last-Save-Date: 2015-01-26T10:57:10Z
pdf:docinfo:keywords: organic electronics; ambipolar field-effect transistor; self-assembly; solution processing; donor-acceptor polymer
pdf:docinfo:modified: 2015-01-26T10:57:10Z
meta:save-date: 2015-01-26T10:57:10Z
Content-Type: application/pdf
X-Parsed-By: org.apache.tika.parser.DefaultParser
creator: Hoi Nok Tsao
dc:subject: organic electronics; ambipolar field-effect transistor; self-assembly; solution processing; donor-acceptor polymer
access_permission:assemble_document: true
xmpTPg:NPages: 14
pdf:charsPerPage: 2338
access_permission:extract_content: true
access_permission:can_print: true
meta:keyword: organic electronics; ambipolar field-effect transistor; self-assembly; solution processing; donor-acceptor polymer
access_permission:can_modify: true
pdf:docinfo:created: 2013-06-19T07:25:14Z