# The quest for electronic ferroelectricity in organic charge-transfer crystals

## TL;DR

This paper reviews the pursuit of ambient-condition electronic ferroelectricity in organic charge-transfer crystals, highlighting criteria needed to achieve this promising, fast-switching, environmentally friendly ferroelectricity.

## Contribution

It identifies key criteria and challenges for realizing ambient electronic ferroelectricity in organic charge-transfer crystals, advancing the understanding of this novel ferroelectric mechanism.

## Key findings

- Emerging criteria for electronic ferroelectricity in organic crystals
- Challenges in achieving ambient conditions ferroelectricity
- Potential advantages over inorganic ferroelectrics

## Abstract

Organic ferroelectric materials are in demand in the growing field of environmentally friendly, lightweight electronics. Donor-Acceptor charge transfer crystals have been recently proposed as a new class of organic ferroelectrics, which may possess a new kind of ferroelectricity, the so-called electronic ferroelectricity, larger and with faster polarity switching in comparison with conventional, inorganic or organic, ferroelectrics. The current research aimed at achieving ambient conditions electronic ferroelectricity in organic charge transfer crystals is shortly reviewed, in such a way to evidence the emerging criteria that have to be fulfilled to reach this challenging goal.