Open AccessTransistor Memory: 4,5‐Diazafluorene‐Based Donor–Acceptor Small Molecules as Charge Trapping Elements for Tunable Nonvolatile Organic Transistor Memory (Adv. Sci. 12/2018)
Author(s) -
Yu Yang,
Bian LinYi,
Chen JianGuo,
Ma QiHao,
Li YinXiang,
Ling HaiFeng,
Feng QuanYou,
Xie LingHai,
Yi MingDong,
Huang Wei
Publication year - 2018
Publication title -
advanced science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.388
H-Index - 100
ISSN - 2198-3844
DOI - 10.1002/advs.201870074
Subject(s) - triphenylamine , trapping , homo/lumo , transistor , optoelectronics , materials science , acceptor , molecular orbital , chemistry , molecule , photochemistry , physics , voltage , organic chemistry , ecology , quantum mechanics , biology , condensed matter physics
In article number 1800747 , Ling‐Hai Xie, Wei Huang, and co‐workers rationally design a diazafluorene derivatives triphenylamine (TPA)(PDAF) 3 as a solution‐processed small molecular charge trapping element to achieve high performance organic field‐effect transistor memory. TPA(PDAF) 3 possesses completely separate highest occupied molecular orbital/lowest unoccupied molecular orbital energy levels, in which the triphenylamine group provides the hole trapping sites, while the diazafluorene unit not only provides the electron trapping sites, but also acts as a hole blocking group to restrain the leakage of stored holes trapped in triphenylamine.