Journal Article

PUBDB-2024-01963

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Mechanochemically-induced glass formation from two-dimensional hybrid organic–inorganic perovskites

Ye, C. (First author)Extern* ; Lampronti, G. I. ; McHugh, L. N. ; Castillo-Blas, C.Extern* ; Kono, A. ; Chen, C. ; Robertson, G. P.Extern* ; Nagle-Cocco, L. A. V. ; Xu, W. ; Stranks, S. D. ; Martinez, V.Extern* ; Brekalo, I.Extern* ; Karadeniz, B.Extern* ; Užarević, K.Extern* ; Xue, W. ; Kolodzeiski, P.Extern* ; Das, C. ; Chater, P.Extern*XFEL.EU* ; Keen, D. A.Extern*XFEL.EU* ; Dutton, S. E.Extern*XFEL.EU* ; Bennett, T. D. (Corresponding author)Extern*

2024
RSC Cambridge

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Please use a persistent id in citations: doi:10.1039/D4SC00905C  doi:10.3204/PUBDB-2024-01963

Abstract: 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.

Note: 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.

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Contributing Institute(s):

1. DOOR-User (DOOR ; HAS-User)

Research Program(s):

1. 6G3 - PETRA III (DESY) (POF4-6G3) (POF4-6G3)
2. FS-Proposal: I-20221330 EC (I-20221330-EC) (I-20221330-EC)

Experiment(s):

1. PETRA Beamline P02.1 (PETRA III)

Appears in the scientific report 2024

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Database coverage:
; ; ; ; Chemical Reactions ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; DOAJ Seal ; Essential Science Indicators ; IF >= 5 ; Index Chemicus ; JCR ; National-Konsortium ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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