Mechanochemically-induced glass formation from two-dimensional hybrid organic–inorganic perovskites
Chumei Ye, Giulio I. Lampronti, Lauren McHugh, Celia Castillo‐Blas, Ayano Kono, Celia Chen, Georgina P. Robertson, Liam A. V. Nagle‐Cocco, Weidong Xu, Samuel D. Stranks, Valentina Martinez, Ivana Brekalo, Bahar Karadeniz, Krunoslav Užarević, Wen‐Long Xue, Pascal Kolodzeiski, Chinmoy Das, Philip A. Chater, David A. Keen, Siân E. Dutton, Thomas D. Bennett
Abstract
ball-milling with synchrotron powder diffraction was employed to study the microstructural evolution of amorphisation, which showed that the crystallite size reaches a comminution limit before the amorphisation process is complete, indicating that energy may be further accumulated as crystal defects. Total scattering experiments revealed the limited short-range order of amorphous HOIPs, and their optical properties were studied by ultraviolet-visible (UV-vis) spectroscopy and photoluminescence (PL) spectroscopy.