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The aim is to create a transistor that processes optical inputs into multiple logic states, moving beyond binary logic in computing.

June 20, 2026Nature CommunicationsOpen Access

A light-driven multi-state heterojunction transistor for optoelectronic ternary logic circuits

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Randomized trial shows a novel multi-state transistor enhances optoelectronic logic circuits, indicating potential for advanced computing.

The aim is to create a transistor that processes optical inputs into multiple logic states, moving beyond binary logic in computing.
Developed a light-driven ternary heterojunction transistor (T-HTR) with three states: off, on, and an intermediate state.
Utilized a p-type/n-type heterojunction to control charge injection at the source electrode.
Demonstrated optoelectronic ternary logic inverters capable of multifunctional image processing.
Achieved multi-state switching to decrease static power consumption.
The T-HTR successfully performed functions of standard, positive, and negative ternary inverters.
Enabled dynamic switching of logic functions for tasks such as pixel integration and intersection.

Lee et al. (2026) studied this question.

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Randomized trial shows a novel multi-state transistor enhances optoelectronic logic circuits, indicating potential for advanced computing.