Synaptic Characteristics of Thin Film Transistor with Organic-Inorganic Hybrid Materials
- Title
- Synaptic Characteristics of Thin Film Transistor with Organic-Inorganic Hybrid Materials
- Other Titles
- 유무기 하이브리드 박막 재료를 활용한 박막 트랜지스터의 시냅틱 특성 연구
- Author
- 이도희
- Alternative Author(s)
- 이도희
- Advisor(s)
- 최창환
- Issue Date
- 2021. 2
- Publisher
- 한양대학교
- Degree
- Master
- Abstract
- With the rapid increasing demands on data, neuromorphic computing, a system
emulating the human nervous system, has garnered a great attention as an
alternative to the von-Neumann architecture due to its low power consumption and
parallel data processing. To realize this neuromorphic computing, research on the
artificial electronic synapse and neuron device including architecture has been
investigated using various materials and devices. Implementation of neuromorphic
computing systems with light-stimulated synaptic function may enhance
computational speed by proving devices with high bandwidth, low power
consumption, and low crosstalk. Organic-inorganic hybrid halide perovskites
(OIHPs) are promising materials for high-performance photodetectors due to its
broad optical absorption, low exciton binding energy, charge transport properties
and bandgap tunable. However, these OIHPs are made up of lead (Pb2+) cations,
which limits the wide application of the materials because of its toxicity.
In this study, we investigated light-stimulated synaptic behaviors of the photo
transistor where the Thin film transistor (TFT) structure with OIHPs synthesized
Mn2+-substituted lead perovskite displacing ~90% of lead, as MAPb0.1Mn0.9Br0.2Cl2.
Our photo transistor with OIHPs successfully emulated the essential synaptic
characteristics including excitatory post-synaptic current (EPSC), pulse-paired
facilitation (PPF), post-tetanic potentiation (PTP), STP to LTP transition and
Ebbinghaus forgetting curve of the human brain with light pulse.
- URI
- https://repository.hanyang.ac.kr/handle/20.500.11754/159638http://hanyang.dcollection.net/common/orgView/200000485749
- Appears in Collections:
- GRADUATE SCHOOL[S](대학원) > MATERIALS SCIENCE & ENGINEERING(신소재공학과) > Theses (Master)
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