4H-1,2,6-Thiadiazin-4-one-containing small molecule donors and additive effects on their performance in solution-processed organic solar cells

Abstract

The optical, electrochemical, morphological and transport properties of a series of thiadiazinone (acceptor) and (

Acceptor End‐Capped Oligomeric Conjugated Molecules with Broadened Absorption and Enhanced Extinction Coefficients for High‐Efficiency Organic Solar Cells

“…All active layers were casted from chloroform solution. Four different solvent additives, diphenyl ether, 1‐chloronaphthalene (CN), 2‐chlorophenol (CP), and 1,8‐diiodooctane (DIO) were applied to optimize the performance of the devices (Table S1–S4, Supporting Information), since active layer morphology and crystalline behavior could be significantly influenced by them. All the solvent additives were primarily evaluated and only the most effective one was chosen in further optimization and discussion.…”

Substitution chemistry of 3,5-dichloro-4 H -1,2,6-thiadiazine 4,4-ketals

“…3 More recently, 4H-1,2,6-thiadiazines were proposed as precursors to radical anions for molecule-based magnetic and conducting materials, 4 and small molecules containing 4H-1,2,6-thiadiazin-4-one were studied as electron donors in solution-processed bulk heterojunction solar cells. 5 In spite of these useful properties, work on this heterocyclic system has remained limited, presumably owing to the lack of available primary scaffolds.…”

Synthesis of 2‐Cyanoquinazolin‐4‐ones from 3′,5′‐Dichloro‐1H‐spiro(quinazoline‐2,4′‐[1,2,6]thiadiazin)‐4(3H)‐ones

“…1,2,6‐Thiadiazines, are sulfur‐nitrogen heterocycles that have broad applications . Non S‐oxidized 4 H ‐1,2,6‐thiadiazines are rare, but some behave as near‐infrared dyes or liquid crystals, as donor components in solution‐processed bulk heterojunction solar cells, as calcium/calmodulin‐dependent protein kinase kinase 2 (CaMKK2) inhibitors, or as plant fungacides . Non S‐oxidized 4 H ‐1,2,6‐thiadiazines can also be transformed into pyrimidines (see Scheme ) and other heterocycles …”