Advancing organic SemicondUctor / 2D hybrid organic-inorganic PERovskite heterojunction-based floating-GATE transistors for neuromorphic computing applications

Descripción del proyecto

La tecnología orgánica híbrida favorece la computación neuromórfica

El futuro digital de Europa exige dos avances fundamentales: una inteligencia artificial más sofisticada y una energía más limpia. Sin embargo, los ordenadores actuales no son energéticamente eficientes. La computación neuromórfica, inspirada en el funcionamiento del cerebro humano, ofrece una alternativa revolucionaria, sobre todo gracias a los transistores sinápticos de puerta flotante, que prometen un consumo energético ultrabajo. Sin embargo, estos transistores siguen siendo inestables y difíciles de controlar. En el proyecto SUPER-GATE, que cuenta con el apoyo de las acciones Marie Skłodowska-Curie, se abordará esta limitación combinando perovskitas bidimensionales híbridas orgánico-inorgánicas con un diseño de heterounión. Esta integración tiene como objetivo reducir el consumo energético a menos de 1 femtojulio por impulso (miles de veces inferior al de los sistemas convencionales) y mejorar la estabilidad a largo plazo. SUPER-GATE favorecerá el desarrollo de tecnologías más ecológicas al combinar la ciencia avanzada de materiales con la electrónica de vanguardia.

Objetivo

The ascent of artificial intelligence and the increasing demand for clean energy technologies in Europe has given rise to a pertinent need for modern computing systems with reduced energy consumption. Neuromorphic computing, inspired by the working of the human brain, constitutes a potential paradigm shift in low-energy computing. Floating gate synaptic transistors (FGTs), critical components in neuromorphic computing hardware, offer promising pathways to perform massively parallel computational tasks with ultralow energy consumption of 1-10 fJ/spike. Despite the promises of FGTs, several challenges related to limited control over the charge-trapping properties, morphology, and stability of the floating gate layer need to be addressed. The SUPER-GATE project introduces an innovative concept of combining advanced 2D hybrid organic-inorganic perovskite (HOIP) molecular design with a facile and effective heterojunction design. In SUPER-GATE, an interdisciplinary strategy of materials and device engineering will be implemented by fine-tuning the energy level alignment of the organic cation in the 2D HOIP with an organic semiconductor channel in the form of a heterojunction. This will lead to synaptic performance with ultra-low power consumption (<1 fJ/spike) and more stable HOIP-based FGT devices than achieved to date (>152 days). Combining advanced optoelectronic and morphological characterization, structure-property-performance relationships will be formulated to guide further material and device development. The expertise of the researcher in the fabrication and optimization of organic electronic devices by solution-processed techniques will be combined with the host's experience in HOIP synthesis and the advanced optoelectronic characterization of transistors. The in-depth training gained during SUPER-GATE will contribute to the researcher’s professional career to become a cutting-edge scientist and present an important milestone toward academic independence.