02583nas a2200229   4500008004100000022001400041245017800055210006900233260000800302300001400310490000700324520170500331100002102036700003102057700002202088700002402110700002002134700002702154700002602181700002002207856012602227       2022                        eng d  a0020-166900aControlled modulation of the structure and luminescence properties of zero-dimensional manganese halide hybrids through structure-directing metal-ion (Cd2+ and Zn2+) centers0 aControlled modulation of the structure and luminescence properti  cAPR  a5363-53720 v613 a<p>
	Zero-dimensional (0D) metal halide hybrids with high exciton binding energy are excellent materials for lighting applications. Controlling/modulating the structure of the con-stituent metal halide units allows tunability of their photo-luminescence properties. 0D manganese halide hybrids are currently attracting research efforts in lighting applications due to their eco-friendly and strong emission. However, structural transformation-induced tunability of their photophysical propertieshas rarely been reported. Herein, we demonstrate a rationalsynthetic strategy to modulate the structure and luminescenceproperties of 0D Mn(II) halide hybrids utilizing the structure-directing d10metal ions (Cd2+/Zn2+). 0D metal halide hybrids ofCd2+/Zn2+, which act as hosts with tunable structures, accept Mn2+ions as substitutional dopants. This structural flexibility of thehost d10metal ions is realized by optimizing the metal-to-ligand ratio (Cd/AEPip). This reaction parameter allows structuraltransformation from an octahedral (AEPipCdMnBrOh) to a tetrahedral (AEPipCdMnBrTd) 0D Mn halide hybrid with tunableluminescence (orange -&gt; green) with high photoluminescence quantum yield. Interestingly, when Zn2+is utilized, a tetrahedralAEPipZnMnBr structure forms exclusively with strong green emission. Optical and single-crystal X-ray diffraction structural analysisof the host and the doped system supports our experimental data and confirms the structure-directing role played by Cd2+/Zn2+centers. This work demonstrates a rational strategy to modulate the structure/luminescence properties of 0D Mn(II) halide hybrids, which can further be implemented for other 0D metal halide hybrids</p>
1 aDas, Deep, Kumar1 aBakthavatsalam, Rangarajan1 aAnilkumar, Vishnu1 aMali, Bhupendra, P.1 aAhmed, Md, Soif1 aRaavi, Sai, Santosh Ku1 aPallepogu, Raghavaiah1 aKundu, Janardan  uhttps://library.ncl.res.in/content/controlled-modulation-structure-and-luminescence-properties-zero-dimensional-manganese