NDLI: Multistate electrically controlled photoluminescence switching

Content Provider	Royal Society of Chemistry (RSC)
Author	Tang, Zhiyong Bi, Lihua Wang, Nan Fu, Yu Liu, Shaoqin Gu, Hongxi
Copyright Year	2013
Abstract	Reversibly fluorescent switchable materials have important applications in the fields of ultrahigh-density optical data storage, molecular switches, logic gates, molecular wires, optical/electronic devices, sensors, bioimaging and so on. Some systems have been developed based on smart luminescent polymers and organic photoswitchable molecules. However, the use of such materials for practical applications is dramatically restricted by their intrinsic drawbacks such as low ON/OFF ratios, irreversibility and poor environmental resistance. An imperative challenge toward real applications is to design and fabricate photoluminescence switching devices with high on/off contrast and fast response time, and especially to obtain multicolored systems, in which the photoluminescence wavelength can be easily tuned in the visible region. Here we report the first inorganic example of a multicolored photoluminescence switching system by controlling the organization of crown-type polyoxometalates (POMs) and CdSe@CdS core–shell quantum dots (QDs) into the layer-by-layer (LBL) nanostructures. The photoluminescence of this system can be switched on and off reversibly upon application of step potentials for different redox states, owing to the energy transfer between reduced POMs and QDs. This system displays a quick response (off 17 s, on 38 s), high on/off contrast (∼91%), good cycling performance (the modulation ratio is only decreased by 19% after 200 cycles) and also has the advantage of low power consumption. Furthermore, reversible four-state fluorescence switching is realized by integrating different-sized QDs in one multifunctional system.
Starting Page	4371
Ending Page	4377
Page Count	7
File Format	HTM / HTML PDF
ISSN	20416520
Volume Number	4
Issue Number	12
Journal	Chemical Science
DOI	10.1039/c3sc51778k
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Photoluminescence Molecular wire Redox Fluorescence Logic gate Lawrence Berkeley National Laboratory Optical disc Wavelength
Content Type	Text
Resource Type	Article
Subject	Chemistry

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Lawrence Berkeley National Laboratory Lawrence Berkeley National Laboratory Title AUTOMATED ELEMENTAL ANALYSIS USING ENERGY DISPERSIVE X-RAY FLUORESCENCE ANALYSIS Permalink

Lawrence Berkeley National Laboratory Lawrence Berkeley National Laboratory

Lawrence Berkeley National Laboratory Lawrence Berkeley National Laboratory Title Rapid and automated multidimensional fluorescence microscopy profiling of 3 D human breast cultures

Lawrence Berkeley National Laboratory Lawrence Berkeley National Laboratory Title

Lawrence Berkeley National Laboratory Lawrence Berkeley National Laboratory Title

Lawrence Berkeley National Laboratory Lawrence Berkeley National Laboratory Title

Lawrence Berkeley National Laboratory Lawrence Berkeley National Laboratory Title

Lawrence Berkeley National Laboratory Lawrence Berkeley National Laboratory Title Overview of the InterGroup protocols

Lawrence Berkeley National Laboratory Lawrence Berkeley National Laboratory Title Semiconductor Nanowires : What ' s Next ?

Multistate electrically controlled photoluminescence switching

Similar Documents

Lawrence Berkeley National Laboratory Lawrence Berkeley National Laboratory Title AUTOMATED ELEMENTAL ANALYSIS USING ENERGY DISPERSIVE X-RAY FLUORESCENCE ANALYSIS Permalink

Lawrence Berkeley National Laboratory Lawrence Berkeley National Laboratory

Lawrence Berkeley National Laboratory Lawrence Berkeley National Laboratory Title Rapid and automated multidimensional fluorescence microscopy profiling of 3 D human breast cultures

Lawrence Berkeley National Laboratory Lawrence Berkeley National Laboratory Title

Lawrence Berkeley National Laboratory Lawrence Berkeley National Laboratory Title

Lawrence Berkeley National Laboratory Lawrence Berkeley National Laboratory Title

Lawrence Berkeley National Laboratory Lawrence Berkeley National Laboratory Title

Lawrence Berkeley National Laboratory Lawrence Berkeley National Laboratory Title Overview of the InterGroup protocols

Lawrence Berkeley National Laboratory Lawrence Berkeley National Laboratory Title Semiconductor Nanowires : What ' s Next ?

Multistate electrically controlled photoluminescence switching