Phase transition study in a [Cu2HgI4:0.2AgI] mixed composite system doped with K2SO4

Abstract

Experimental MaterialSilver iodide (AgI) and mercury [I] iodide (HgI 2 ) were of CDH Analar grade, cuprous iodide (CuI) was obtained from S.D. Fine-Chem (India), and potassium sulfate (K 2 SO 4 ) was obtained from Qualigens with stated purity of 98%, 99%, 99%, and 99% each, respectively. Preparation and characterization of pure and doped samples Preparation of host [Cu 2 HgI 4 :0.2AgI] compositeThe samples were prepared by precipitation using previously described techniques as well as by solid-state reaction [15,16]. Cu 2 HgI 4 was prepared by solid-state reactions between CuI and HgI 2 [5]. 2CuI s ð Þ þ HgI 2 s ð Þ ! Cu 2 HgI 4 s ð Þ

A 1D Cu(i)–I-pyrazine coordination polymer with controlled pressure-induced phase transition and opto-electronic response depending on mechanical stimuli, temperature, and CuI content

“…In addition, apart from a building block, copper iodide (CuI) can act as a dopant agent due to its excellent optoelectronic and thermoelectric properties, given its p-type conductivity. [34][35][36][37] In this way, we can obtain [CuI(PyzBr)] n chains through two very simple synthetic pathways that will allow us to control the presence of CuI in the obtained compound. 20 Namely, solventfree mechanical synthesis allows obtaining [CuI(PyzBr)] n in the form of polycrystals with a percentage of CuI of 2.5% whereas recrystallization of the polycrystals in acetonitrile enables the formation of [CuI(PyzBr)] n single crystals.…”

“…In addition, apart from a building block, copper iodide (CuI) can act as a dopant agent due to its excellent optoelectronic and thermoelectric properties, given its p-type conductivity. 34–37…”