Muon spin relaxation study of spin dynamics in poly(triarylamine)

摘要: Abstract Organic semiconductors (OSCs) have been of great interest over the last couple decades on account their mechanical flexibility, ease processing and high tunability as well being readily available. Polymers, in particular, possess two desirable properties, print electronic tunability. These properties are both necessary for application these materials devices such organic solar cells spin valves engineered hard disks logic devices. Much focus recent years has given to researching electron hole dynamics, transport mechanisms relaxation order utilise OSCs novel Here μSR technique is applied perform an depth study dynamics commonly used poly(triarylamine) polymer (PTAA). Strong evidence shows that wave function can be considered localised aromatic rings giving rise a strong hyperfine coupling interaction with attached muon. Additionally, (eSR), similar previously reported small molecule series (in 0.25 μs −1 ), shown exist value 0.31 μs at room temperature.