posted on 2021-05-24, 19:37authored byDaofu Wu, Jiaer Zhou, Wei Kang, Kang An, Jiayu Yang, Miao Zhou, Peng He, Qiang Huang, Xiaosheng Tang
Nowadays, there is much attention
focusing on lead halide perovskite
because of its admirable performances in optoelectronic applications.
However, the notorious toxicity and long-term instability are two
main factors limiting its widespread applications. The findings of
this work demonstrate a facile synthesis process for novel lead-free
CsAgCl2 perovskite microcrystals with no organic ligand
involved. The fundamental properties of the CsAgCl2 microcrystals
are revealed by applying temperature-dependent X-ray diffraction and
photoluminescence measurements from 77 to 300 K. Furthermore, the
CsAgCl2 microcrystals exhibit excellent air (60 days),
thermal (100 °C), and light stability. Meanwhile, the CsAgCl2 microcrystals have shown exciting potential applications
in the fields of photocatalysis and photoelectrochemistry.