A single crystal of a lead−iodine-based 2D perovskite having naphthalene diimide ammonium (NDIA) molecules as organic layers was developed, and the charge transport property was studied using field-effect transistors (FETs) measurements. Structure determination reveals the layered alternative stacking of lead iodide sheets and NDIA bilayers. The presence of NDIA promoted the lead iodide octahedron to form the unique three-point co-planar [Pb 3 I 10 ] 4− unit, which then connected into the 2D network in a corner-sharing manner. The NDIA cations closely stacked into 1D chains within the bilayers that were being sandwiched between the inorganic layers. FET characteristics of the single crystal obtained at room temperature demonstrate V DS -dependent electron and hole transport behavior with mobilities reaching up to more than 5 × 10 −3 cm 2 V −1 s −1 . The 1D stack of NDIAs contributes greatly to the performance improvement for both the charge transport and the stability.
A series of Ln-MOFs with π-conjugated and uncoordinated lewis basic triazolyl ligand have luminescence modulation, near white light emission, selective luminescence sensing, and anticounterfeiting.
Several
new isostructural lanthanide metal–organic frameworks
(Ln-MOFs), {[Ln2(L)3DMA4]·2DMA}
n
(1-Ln, where Ln = Eu, Tb, or
Eu
x
Tb1–x
), were first constructed via the solvothermal reactions of 4,6-di(4-carboxyphenyl)pyrimidine
and Ln3+ ions. 1-Ln exhibits a 4-connected
two-dimensional framework endowed with uncoordinated Lewis base sites.
An exploration of luminescence sensing demonstrated 1-Eu can be used for the selectivity detection of dimetridazole and metronidazole
antibiotics in other antibiotics, blood plasma, and urine, acting
as an exceptional recyclable luminescent probe. More importantly,
the luminescent inks of 1-Ln are invisible, color adjustable,
and stabilized, which may greatly improve their anticounterfeiting
applications.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.