Thin film absorption spectra of lower valent p block halides

(INVITED) Revisiting Duffy's model for Sb3+ and Bi3+ in double halide perovskites: Emergence of a descriptor for machine learning

“…For chloride, bromide and iodide the values of h, as determined earlier by C. K. Jørgensen from spectroscopic data of transition metal ions [16], are assumed to be fixed at about 2.0, 2.3 and 2.7 respectively. These values statisfactorily reproduce the trends along the nephelauxetic sequence F, Cl, Br, I in ns 2 halides and ns 2 -doped alkali halides [17] and yield m values of 0.24 and 0.28 for Sb 3+ and Bi 3+ , respectively. In oxidic media, the m values are lowered to 0.18 (Sb 3+ ) and 0.21 (Bi 3+ ) but the energy Ef in Eqn.…”

Luminescence–structure relationships in solids doped with Bi3+

“…The values of h amount to 2.0, 2.3 and 2.7 in chlorides, bromides and iodides respectively. These values macroscopically reproduce the trends along the nephelauxetic sequence F, Cl, Br, I in ns 2 halides and ns 2 -doped alkali halides 56 and yield a m value of 0.28 for Bi 3+ . In oxidic media, the m value of Bi 3+ is lowered to 0.21 and the energy E f in eqn (1) is found 2.47 eV below the tabulated free ion value.…”

Synthesis of Silver Nanocomposite with Poly(vinylpyrollidone) and Poly(4-vinylpyridine) for Antimicrobial Activity

“…It was shown through X-ray photoelectron spectroscopy (XPS) studies at various electrons take off angles that silver clusters are formed at a depth of a couple of nm from the polymer surface [23,24]. It is known that the formation of subsurface particulate structure formation is subject to certain thermodynamic [24] and deposition conditions [25]. While the thermodynamic conditions are met for the deposition of metals on most of the polymer substrates, deposition conditions used in the present study are similar to those used in our earlier studies [16,17,19,20].…”