Details

Autor(en) / Beteiligte

• Ye, Changqing
• Peng, Qian
• Li, Mingzhu
• Luo, Jia
• Tang, Zhengming
• Pei, Jian
• Chen, Jianming
• Shuai, Zhigang
• Jiang, Lei
• Song, Yanlin

Titel

Multilevel Conductance Switching of Memory Device through Photoelectric Effect

Ist Teil von

• Journal of the American Chemical Society, 2012-12, Vol.134 (49), p.20053-20059

Ort / Verlag

United States: American Chemical Society

Erscheinungsjahr

2012

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• A photoelectronic switch of a multilevel memory device has been achieved using a meta-conjugated donor-bridge-acceptor (DBA) molecule. Such a DBA optoelectronic molecule responds to both the optical and electrical stimuli. The device exhibits good electrical bistable switching behaviors under dark, with a large ON/OFF ratio more than 106. In cooperation with the UV light, photoelectronic ternary states are addressable in a bistable switching system. On the basis of the CV measurement, charge carriers transport modeling, quantum chemical calculation, and absorption spectra analysis, the mechanism of the DBA memory is suggested to be attributed to the substep charge transfer transition process. The capability of tailoring photoelectrical properties is a very promising strategy to explore the multilevel storage, and it will give a new opportunity for designing multifunctional devices.