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[Display omitted] A systematic study of the UV light-induced degradation of a series of structurally similar conjugated polymers revealed important relationships between the molecular structure of the used building blocks and photostability of the resulting materials. These findings form a set of important guidelines for future rational design of new absorber materials for efficient and stable organic solar cells. [ABSTRACT FROM AUTHOR]

[Display omitted] The effect of various types of electrolytes on the operation of coordination polymers based on NiII or CuII in lithium-ion batteries has been examined. Cyclic voltammetry, galvanostatic cycling and quantum chemical modeling have been used to study the processes of lithiation and delithiation. It was shown that the use of a new electrolyte based on a mixture of 1 M LiN(CF 3 SO 2) 2 in 1,3-dioxolane–1,2-dimethoxyethane and 1 M LiPF 6 in ethylene carbonate–dimethyl carbonate improved battery performance, while cycling in the range of 0.2–2.5 V increased the discharge capacity up to 177–188 mA h g−1 and stabilized the charge–discharge processes. [ABSTRACT FROM AUTHOR]

Graphical abstract A series of novel Y-shaped dyes bearing the D–π–A–π–D fragment comprising central 2-alkoxy-or 2-alkylthio-substituted pyrimidine core and terminal 2-(1-methyl-1 H -pyrrol-2-yl)vinyl moieties have been synthesized and studied as potential materials for the organic electronics. The obtained compounds demonstrated an efficient absorption at ∼410 nm with the high molar absorption coefficient (29790–40620 dm3 mol−1 cm−1) and fluorescence emission at ∼480 nm (Φ F ∼ 7.5–8.6%). Thin films of 2-ethyloxy- or 2-ethylthiopyrimidines exhibited the red-shifted photoluminescence (∼600 nm). [ABSTRACT FROM AUTHOR]