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One Material with Two Functions Could Lead to Faster Memory

An artists rendering shows the capability of a CsPbBr3 LEM device for parallel optical and electrical transmission of encoded information.

The researchers used perovskite to develop a memory device readable through both electrical and optical methods.

Credit: Ya-Ju Lee/Kyushu University

Researchers at National Taiwan Normal University (NTNU) and Japan's Kyushu University have developed a device that simultaneously stores and visually transmits data with a single semiconductor.

The researchers realized parallel, synchronous reading of data electrically and optically by combining a light-emitting electrochemical cell with a resistive random-access memory.

A key component of the device is perovskite, a crystalline material through which ions migrate.

NTNU's Ya-Ju Lee said, "By taking advantage of the fast, electrically switchable ionic motion that enables this dual functionality in a single layer of perovskite, we were able to connect two devices together and develop an all-inorganic perovskite light-emitting memory."

The team showed data can be electrically written, deleted, and read in one of the perovskite devices, and concurrently transmit whether data is being written or erased.

From Kyushu University (Japan)
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Abstracts Copyright © 2021 SmithBucklin, Washington, DC, USA


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