Organic Donor-σ-Acceptor Molecules Based on 5,5′-(9,10-Bis((4-hexylphenyl)ethynyl)anthracene-2,6-diyl)bis(ethyne-2,1-diyl)bis(2-hexylthiophene) for Resistive Random Access Memory

Abstract

New Donor-σ-acceptor (D-σ-A) molecules of (HAT)-2(PDI) and (HAT)-2(PCBM); PDI refers to perylene diimide, PCBM refers to [6,6]-phenyl C61-butyric acid methyl ester, and HAT refers to 5,5′-(9,10-bis((4-hexylphenyl)ethynyl)anthracene-2,6-diyl)bis(ethyne-2,1-diyl)bis(2-hexylthiophene) were successfully synthesized for studying the intermolecular association behavior and their possible applications of these molecules to electrically bistable devices. The memory devices with the configuration of Al/(HAT)-2(PDI) or (HAT)-2(PCBM)/ITO exhibited a low-voltage operating flash type memory capability.

Keywords:

• Donor-σ-acceptor
• organic memory
• PCBM
• PDI
• X-shaped molecule

Acknowledgments

This research was supported by National Research Foundation of Korea (NRF2012R1A2A 1A01008797 & 20110026418) and by Key Research Institute Program through the NRF funded by the Ministry of Education, Science and Technology (NRF20100020209).