First-principles study of lead-free A<sub>3</sub>InX<sub>6</sub> (A = Rb, Cs; X = Cl, Br, I) defect -perovskites: structural, electronic, optical, and mechanical properties.

RSC Adv · 2026 · PMC13112378 · PMID 42052192

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closest p

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a decreasing trendno p-value reported

The Rb-based compounds exhibit Y of 13.985 GPa (Rb 3 InCl 6 ), 11.515 GPa (Rb 3 InBr 6 ), and 10.677 GPa (Rb 3 InI 6 ), showing a decreasing trend from Cl to I due to progressive weakening of interatomic bonding.

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.

First-principles study of lead-free A&lt;sub&gt;3&lt;/sub&gt;InX&lt;sub&gt;6&lt;/sub&gt; (A = Rb, Cs; X = Cl, Br, I) defect -perovskites: structural, electronic, optical, and mechanical properties.

The sentences

First-principles study of lead-free A<sub>3</sub>InX<sub>6</sub> (A = Rb, Cs; X = Cl, Br, I) defect -perovskites: structural, electronic, optical, and mechanical properties.