Recently, polymeric memory materials have attracted increasing attention since the first reported by Sliva et al.1 in 1970. Compared with conventional inorganic memory materials, polymeric materials have advantages in their ease of miniaturization and tailored properties through structural design. Moreover, polymeric memory materials store information in the form of high (ON) and low (OFF) current states in place of the amount of charges stored in memory devices and possess the advantages of low-cost, solution processability, flexibility, and three-dimensional stacking capability for practical ulization.2     In this contribution, a series of 2D conjugated polymers consist of benzo[1,2-b:4,5-b']dithiophene as building blocks in the main chain were synthesized3 and used for memory device application. Performance of these memory devices reveals strong correlation between on-off ratio and energetics (differences between HOMO and LUMOs energy levels).  Combined theoretical and experimental studies of our donor-acceptor, donor-donor conjugated systems offer valuable insights to improve memory devices by rational design of molecular structures.Reference: 1. Sliva, P. O.; Dir, G.; Griffiths, C. J. Non-Cryst. Solids 1970,  2, 316�333.2. Stikeman A. Technol. Rev. 2002 , 105, 31.3. Kuo, C. Y.; Nie, W.; Tsai, H.; Yen, H. J.; Mohite,A. D.; Gupta,  G.; Dattelbaum, A. M.; William, D. J.; Cha, K. C.; Yang, Y.; Wang, L.; Wang, H. L. (submitted).

Benzo[1,2-b:4,5-b']dithiophene-based 2D conjugated polymers for polymer memory device applications

247th National Meeting (2014)

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