NDLI: Fluorescence mutation and structural evolution of a π-conjugated molecular crystal during phase transition

Please wait, while we are loading the content...

The synthesis of novel AIE emitters with the triphenylethene-carbazole skeleton and para-/meta-substituted arylboron groups and their application in efficient non-doped OLEDs

High-ampacity conductive polymer microfibers as fast response wearable heaters and electromechanical actuators

Solution-processable iridium phosphors for efficient red and white organic light-emitting diodes with low roll-off

Fluorescence mutation and structural evolution of a π-conjugated molecular crystal during phase transition

Magneto-optical Kerr effect characterization of a uniform nanocrystalline Fe₃O₄ monolayer fabricated on a silicon substrate functionalized with catechol groups

The electrochemical fabrication of electroactive polymer films from diamide- or diimide-cored N-phenylcarbazole dendrons for electrochromic applications

Photoluminescence tuning of Ca₅(PO₄)₃Cl:Ce³⁺/Eu²⁺,Tb³⁺/Mn²⁺ phosphors: structure refinement, site occupancy, energy transfer and thermal stability

Multilayer MoS₂ growth by metal and metal oxide sulfurization

Blue light-emitting polymers containing fluorene-based benzothiophene-S,S-dioxide derivatives

Enhanced thermoelectric properties of Au nanodot-included Bi₂Te₃ nanotube composites

A facile way of fabricating a flexible and conductive cotton fabric

Synthesis and properties of highly branched sulfonated poly(arylene ether)s with flexible alkylsulfonated side chains as proton exchange membranes

Structure and luminescence properties of Eu²⁺ doped Lu_xSr_2−xSiN_xO_4−x phosphors evolved from chemical unit cosubstitution

Electrochemically deposited nanocrystalline InSb thin films and their electrical properties

Back cover

Journal of Materials Chemistry C Vol - 4 Issue - 5

Journal of Materials Chemistry C Vol -3

Journal of Materials Chemistry C Vol -2

Journal of Materials Chemistry C Vol -1

Fluorescence mutation and structural evolution of a π-conjugated molecular crystal during phase transition

Content Provider	Royal Society of Chemistry (RSC)
Author	Zou, Bo Ma, Yuguang Xu, Yuanxiang Xie, Zengqi Wang, Kai Zhang, Yujian
Copyright Year	2016
Abstract	Two thermodynamically stable crystalline phases (B- and G-phases) were found for a twistable π-conjugated molecule, CN-DSB, condensed from its solution. We investigated the structural evolution at the molecular and supramolecular levels as the crystalline phase transforms from the B-phase to G-phase under varied temperature or pressure. The intermolecular interactions were undermined before phase transition as the B-phase crystal was stimulated with an external energy. Heating the B-phase crystal up to 175 °C or applying stress up to its critical pressure (0.75 GPa) initially resulted in mixture phases or disordered state. At this stage, the molecules slightly adjust from a twisting configuration to a planar configuration, corresponding to the gradual red shift of the fluorescence spectra. Above the phase transition point, the initial intermolecular interaction of the B-phase is broken down, and the CN-DSB molecules re-assemble to the new phase—a new thermodynamic equilibrium state—corresponding to the sudden change of the emission color. Furthermore, the property of thermal-induced phase transition can be used to fabricate patterns on the CN-DSB crystal surface, and a uniform raster has been prepared by femtosecond laser direct writing (FsLDW) on the B-phase. The investigations provide new insight and understanding for the crystal phase transition and may contribute to process innovation in optical devices.
Starting Page	1257
Ending Page	1262
Page Count	6
File Format	HTM / HTML PDF
ISSN	20507526
Volume Number	4
Issue Number	6
Journal	Journal of Materials Chemistry C
DOI	10.1039/c5tc03745j
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Phase transition Critical point (thermodynamics) Thermodynamic equilibrium Raster scan Femtosecond Laser
Content Type	Text
Resource Type	Article
Subject	Chemistry Materials 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

Thermodynamic evolution of materials during laser ablation under pico and femtosecond pulses

Thermodynamic Basis of Crystal Growth: P-T-X Phase Equilibrium and Non-Stoichiometry

π–π-Induced aggregation and single-crystal fluorescence anisotropy of 5,6,10b-triazaacephenanthrylene

Thermodynamic analogy for structural phase transitions (2005).

Thermodynamic Analogy for Structural Phase Transitions (2005)

Editorial: Critical role of spectroscopic analysis for the development of π-conjugated materials for optoelectronics

Non-Equilibrium Thermodynamics and Formation of Nanoparticles in Femtosecond Laser Ablation

On the use of laser-induced fluorescence to probe the thermodynamic equilibrium in laser-generated plasmas

Thermodynamic properties of aliphatic halogen compounds. Part 1.—Vapour pressure and critical properties of 1,1,1-trichloroethane

Fluorescence mutation and structural evolution of a π-conjugated molecular crystal during phase transition

Similar Documents

Thermodynamic evolution of materials during laser ablation under pico and femtosecond pulses

Thermodynamic Basis of Crystal Growth: P-T-X Phase Equilibrium and Non-Stoichiometry

π–π-Induced aggregation and single-crystal fluorescence anisotropy of 5,6,10b-triazaacephenanthrylene

Thermodynamic analogy for structural phase transitions (2005).

Thermodynamic Analogy for Structural Phase Transitions (2005)

Editorial: Critical role of spectroscopic analysis for the development of π-conjugated materials for optoelectronics

Non-Equilibrium Thermodynamics and Formation of Nanoparticles in Femtosecond Laser Ablation

On the use of laser-induced fluorescence to probe the thermodynamic equilibrium in laser-generated plasmas

Thermodynamic properties of aliphatic halogen compounds. Part 1.—Vapour pressure and critical properties of 1,1,1-trichloroethane

Fluorescence mutation and structural evolution of a π-conjugated molecular crystal during phase transition