Emergence of combined of photoalignment and photoluminescent property

2015 Fiscal Year Final Research Report

• Project/Area Number: 25810079
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Polymer chemistry
• Research Institution: University of Hyogo
• Principal Investigator: Kondo Mizuho 兵庫県立大学, 工学(系)研究科(研究院), 助教 (70447564)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 水素結合 / メカノクロミズム / 機械的刺激

Outline of Final Research Achievements

Control of the electron status of π-conjugated materials to optimize their optoelectrical properties by noncovalent bonding such as hydrogen bonding (H-bonding), protonation and halogen bonding has been intensively investigated because these interactions reversibly vary the dynamic features, morphology, processing characteristics and electrooptical properties of the materials without synthetic modification. We have reported the application of such noncovalent bonding to tune the optical properties of mechanochromic luminescent (MCL) compounds. MCL is isothermal changes in solid-state photolumienscent (PL) color in response to mechanical stimuli. We succeeded in controlling the emergence of MCL behavior by acid. We synthesized novel mechano-inert pyridyne terminated luminophore, which could exhibit MCL behavior by combining acid. The dye switched blue shift and red shift change in PL color upon mechanically grinding by changing acid spices.

Free Research Field

発光性液晶