Improved Photostability in Fluorinated 2D Perovskite Single Crystals

Nanomaterials

MilenaDe Giorgi¹  Vincenzo Ardizzone¹  Dario Ballarini¹  Luisa De Marco¹  Aurora Rizzo¹  Giuseppe Gigli¹  Francesco Todisco¹  Lorenzo Dominici¹  Laura Polimeno¹  Annalisa Coriolano¹  Rosanna Mastria¹  Daniele Sanvitto¹ 

[1] CNR NANOTEC Institute of Nanotechnology, Via Monteroni, 73100 Lecce, Italy;

关键词: 2D perovskites;    single crystals;    perovskite stability;    photoluminescence;   

DOI  :  10.3390/nano11020465

来源: DOAJ

【 摘 要 】

Hybrid organic-inorganic perovskites are very promising semiconductors for many optoelectronic applications, although their extensive use is limited by their poor stability under environmental conditions. In this work, we synthesize two-dimensional perovskite single crystals and investigate their optical and structural evolution under continuous light irradiation. We found that the hydrophobic nature of the fluorinated component, together with the absence of grain boundary defects, lead to improved material stability thanks to the creation of a robust barrier that preserve the crystalline structure, hindering photo-degradation processes usually promoted by oxygen and moisture.

【 授权许可】

Unknown