TY  - JOUR
AU  - Ye, Chumei
AU  - Lampronti, Giulio I.
AU  - McHugh, Lauren N.
AU  - Castillo-Blas, Celia
AU  - Kono, Ayano
AU  - Chen, Celia
AU  - Robertson, Georgina P.
AU  - Nagle-Cocco, Liam A. V.
AU  - Xu, Weidong
AU  - Stranks, Samuel D.
AU  - Martinez, Valentina
AU  - Brekalo, Ivana
AU  - Karadeniz, Bahar
AU  - Užarević, Krunoslav
AU  - Xue, Wenlong
AU  - Kolodzeiski, Pascal
AU  - Das, Chinmoy
AU  - Chater, Philip
AU  - Keen, David A.
AU  - Dutton, Siân E.
AU  - Bennett, Thomas D
TI  - Mechanochemically-induced glass formation from two-dimensional hybrid organic–inorganic perovskites
JO  - Chemical science
VL  - 15
IS  - 19
SN  - 2041-6520
CY  - Cambridge
PB  - RSC
M1  - PUBDB-2024-01963
SP  - 7198-7205
PY  - 2024
N1  - Funding sources: Cambridge Research Fellowship URF\R\211013; the Cambridge Trusts and EPSRC Cambridge NanoDTC, EP/S022953/1; EPSRC scholarship, EP/R513180/1; the Leverhulme Trust, Research Project Grant, RPG-2020-005; the Croatian Science Foundation, IP-2020-02-4702; the Royal Society and Tata Group, UF150033; and the EPSRC, EP/V027131/1.
AB  - Hybrid organic–inorganic perovskites (HOIPs) occupy a prominent position in the field of materials chemistry due to their attractive optoelectronic properties. While extensive work has been done on the crystalline materials over the past decades, the newly reported glasses formed from HOIPs open up a new avenue for perovskite research with their unique structures and functionalities. Melt-quenching is the predominant route to glass formation; however, the absence of a stable liquid state prior to thermal decomposition precludes this method for most HOIPs. In this work, we describe the first mechanochemically-induced crystal-glass transformation of HOIPs as a rapid, green and efficient approach for producing glasses. The amorphous phase was formed from the crystalline phase within 10 minutes of ball-milling, and exhibited glass transition behaviour as evidenced by thermal analysis techniques. Time-resolved in situ 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.
LB  - PUB:(DE-HGF)16
C6  - pmid:38756817
UR  - <Go to ISI:>//WOS:001205133800001
DO  - DOI:10.1039/D4SC00905C
UR  - https://bib-pubdb1.desy.de/record/607627
ER  -