TY - JOUR
T1 - Organic−Inorganic Hybrid Tin Halide Single Crystals with Sulfhydryl and Hydroxyl Groups
T2 - Formation, Optical Properties, and Stability
AU - Song, Zhexin
AU - Yu, Binyin
AU - Wei, Jing
AU - Li, Chunlong
AU - Liu, Guokui
AU - Dang, Yangyang
N1 - Publisher Copyright:
© 2022 American Chemical Society.
PY - 2022/5/9
Y1 - 2022/5/9
N2 - Lead (Pb)-free halide hybrid materials have received a great deal of attention because of their potential in optoelectronic applications. However, heteroatom-based amine lead-free tin halide hybrid single crystals have not been well investigated yet. Detailed synthetic processes, growth, crystal structures, and stability of (ACH2CH2NH3)2SnBr6 (A = OH or SH) and (BCH2CH2NH3)2SnI4 (B = I or SH) single crystals were investigated. Interestingly, (IH3NCH2CH2SSCH2CH2NH3)2HPO3 exhibited orange-red photoluminescence (PL) at about 620 nm with an average PL lifetime of about 912 ns. (HSCH2CH2NH3)2SnI4 single crystals exhibited a PL peak at 620 nm with an average PL lifetime of about 0.607 ns. More importantly, (HSCH2CH2NH3)2SnI4 single crystals exhibited reversible red−black color transformations when exposed to a H3PO2 solution and an ambient atmosphere, which was attributed to oxidation from Sn2+ to Sn4+, rather than from I− to I3− (I2). The intriguing characteristics should provide guidance for further optoelectronic applications of these Pb-free halide hybrid materials.
AB - Lead (Pb)-free halide hybrid materials have received a great deal of attention because of their potential in optoelectronic applications. However, heteroatom-based amine lead-free tin halide hybrid single crystals have not been well investigated yet. Detailed synthetic processes, growth, crystal structures, and stability of (ACH2CH2NH3)2SnBr6 (A = OH or SH) and (BCH2CH2NH3)2SnI4 (B = I or SH) single crystals were investigated. Interestingly, (IH3NCH2CH2SSCH2CH2NH3)2HPO3 exhibited orange-red photoluminescence (PL) at about 620 nm with an average PL lifetime of about 912 ns. (HSCH2CH2NH3)2SnI4 single crystals exhibited a PL peak at 620 nm with an average PL lifetime of about 0.607 ns. More importantly, (HSCH2CH2NH3)2SnI4 single crystals exhibited reversible red−black color transformations when exposed to a H3PO2 solution and an ambient atmosphere, which was attributed to oxidation from Sn2+ to Sn4+, rather than from I− to I3− (I2). The intriguing characteristics should provide guidance for further optoelectronic applications of these Pb-free halide hybrid materials.
UR - http://www.scopus.com/inward/record.url?scp=85130004562&partnerID=8YFLogxK
U2 - 10.1021/acs.inorgchem.2c00313
DO - 10.1021/acs.inorgchem.2c00313
M3 - Article
C2 - 35485722
AN - SCOPUS:85130004562
SN - 0020-1669
VL - 61
SP - 6943
EP - 6952
JO - Inorganic Chemistry
JF - Inorganic Chemistry
IS - 18
ER -