45 0

Light-responsive spiropyran based polymer thin films for use in organic field-effect transistor memories

Title
Light-responsive spiropyran based polymer thin films for use in organic field-effect transistor memories
Author
장재영
Keywords
POLYIMIDE ELECTRETS; LOW-VOLTAGE; GATE DIELECTRICS; CHARGE-TRANSFER; FLASH-MEMORY; DEVICES; PHOTOTRANSISTORS; SEMICONDUCTOR; PHOTOCHROMISM; MECHANISMS
Issue Date
2016-06
Publisher
ROYAL SOC CHEMISTRY
Citation
JOURNAL OF MATERIALS CHEMISTRY C, v. 4, NO 23, Page. 5398-5406
Abstract
Light-responsive spirotype compounds have been receiving attention as attractive smart materials because of their various potential applications in organic optoelectronic devices, based on organic field-effect transistors (OFETs). However, it still remains a challenge to apply the organic flash memory devices using spirotype compounds due to the relatively poor development of new photosensitive electret materials. Here, we report the synthesis of a novel photosensitive polymer electret material, spiropyran, containing poly(3,5-benzoic acid hexafluoroisopropylidene diphthalimide) (6FDA-DBA-SP), and the development of light-responsive flexible memory devices using the 6FDA-DBA-SP electret layer. The charge trapping properties of 6FDA-DBA-SP under light illumination were enhanced by the electron withdrawing properties and lowering energetic barrier of charge trapping between 6FDA-DBA-SP and pentacene analysed by measuring the electronic structures at the pentacene/6FDA-DBA-SP interfaces. The resulting OFETs showed enlarged hysteresis under white-light illumination and exhibited bi-stable current states after the light-assisted programing and erasing processes, and they were utilized in non-volatile flexible memory device applications.
URI
http://pubs.rsc.org/en/Content/ArticleLanding/2016/TC/C6TC00798H#!divAbstracthttp://repository.hanyang.ac.kr/handle/20.500.11754/72074
ISSN
2050-7526; 2050-7534
DOI
10.1039/c6tc00798h
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ENERGY ENGINEERING(에너지공학과) > Articles
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE