Journal
JOURNAL OF PHYSICS D-APPLIED PHYSICS
Volume 44, Issue 29, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0022-3727/44/29/292002
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Funding
- National Science Council, Taiwan
- Nano Electro Mechanical System Research Center, Taiwan
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Electrical bistable behaviour was demonstrated in memory devices based on n-type FeS2 nanocrystals (NCs) embedded in a p-type poly(3-hexylthiophene) (P3HT) matrix. An organic/inorganic hybrid non-volatile memory device with a type-II band alignment, fabricated by a spin-coating process, exhibited electrical bistable characteristics. The bistable behaviour of carrier transport can be well described through the space-charge-limited current model. The small amount of FeS2 NCs in this device serve as an excellent charge trapping medium arising from the type-II band alignment between FeS2 and P3HT. Our study suggests a new way to integrate non-volatile memory with other devices such as transistor or photovoltaic since the presented FeS2/P3HT offers a type-II band alignment.
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