(Diisopropylammonium)₂MnBr₄: a multifunctional ferroelectric with efficient green-emission and excellent gas sensing properties

Abstract

Combination of excellent optical properties and ferroelectricity of hybrid materials leads to high-performance optoelectronic devices. Here we present a new organic-inorganic hybrid compound (diisopropylammonium)MnBr (DIPAMnBr) which shows high temperature ferroelectricity accompanied by highly efficient green-light emission. DIPAMnBr also exhibits sensitive and selective optical response to alcohol vapors.

Tuning the Crystal Structure and Luminescence of Pyrrolidinium Manganese Halides via Halide Ions

“…However, the element Pb is harmful to the environment and human body, thus the development of lead‐free OTMHs is highly desired. In recent years, manganese based OTMHs have reattracted interest from researchers . By replacing lead with manganese, the perovskite‐type trihalides AMnX 3 or tetrahalides A 2 MnX 4 show some unique properties, such as multiferroics, nonlinear optical property, and tunable luminescence .…”

Dielectric Relaxation and Beyond Limiting Behavior of Alternating‐Current Conductivity in a Supermolecular Ferroelectric

“…The calculated result of c D is about À148.56 10 À6 emu mol À1 .T he 1 showsC urie-Weiss-type paramagnetic character and no hysteretic magnetic phase transitionsa re observed in the whole test temperature region. The temperaturedependence of magnetic susceptibilityw as simulated using Equation (7) for the 1:…”

“…Ferroelectric materials exhibit switchable spontaneous polarization in response to an external electric field or mechanical forces, [1][2][3] which hasl ed to aw ider ange of applications,s uch as data storage, sensing, and energy harvesting. [4][5][6][7][8][9][10][11][12][13][14][15][16][17] Moreover, they often exhibit tunable dielectric responses and nonlinear electro-optic effects, [18] whichc an be used to manipulate electromagnetic waves. [19] Relaxor ferroelectrics have received special attention due to the outstanding electrostrictive strain and energy storage ability,w hich play as ignificant role in electronics devices and micro-mechanical systems.…”

High-performance photoluminescence-based oxygen sensing with Pr-modified ZnO nanofibers

“…The electrical gas sensing performance of ZnO and other oxides/hydroxides like SnO 2 , Fe 2 O 3 and ZnSn(OH) 6 can be notably enhanced by praseodymium (Pr) doping and modification [27−33].…”