Memory effects in single-layer organic light-emitting devices based on Sm3+, Gd3+, and Eu3+ rare earth complexes were realized. The device structure was indium-tin-oxide (ITO)/3,4-poly(ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT)/Poly(N-vinyl carbazole) (PVK): rare earth complex/LiF/Ca/Ag. It was found experimentally that all the devices exhibited two distinctive bistable conductivity states in current-voltage characteristics by applying negative starting voltage, and more than 10(6) write-read-erase-reread cycles were achieved without degradation. Our results indicate that the rare earth organic complexes are promising materials for high-density, low-cost memory application besides the potential application as organic light-emitting materials in display devices.
机构:
Indian Assoc Cultivat Sci, Dept Solid State Phys, Kolkata 700032, W Bengal, IndiaIndian Assoc Cultivat Sci, Dept Solid State Phys, Kolkata 700032, W Bengal, India
Bandyopadhyay, A
;
Pal, AJ
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机构:
Indian Assoc Cultivat Sci, Dept Solid State Phys, Kolkata 700032, W Bengal, IndiaIndian Assoc Cultivat Sci, Dept Solid State Phys, Kolkata 700032, W Bengal, India
机构:
Indian Assoc Cultivat Sci, Dept Solid State Phys, Kolkata 700032, W Bengal, IndiaIndian Assoc Cultivat Sci, Dept Solid State Phys, Kolkata 700032, W Bengal, India
Bandyopadhyay, A
;
Pal, AJ
论文数: 0引用数: 0
h-index: 0
机构:
Indian Assoc Cultivat Sci, Dept Solid State Phys, Kolkata 700032, W Bengal, IndiaIndian Assoc Cultivat Sci, Dept Solid State Phys, Kolkata 700032, W Bengal, India