Nanographene-Based Heterojunctions for High-Performance Organic Phototransistor Memory Devices
Publikation: Beitrag in Fachzeitschrift › Forschungsartikel › Beigetragen › Begutachtung
Beitragende
Abstract
Organic phototransistors can enable many important applications such as nonvolatile memory, artificial synapses, and photodetectors in next-generation optical communication and wearable electronics. However, it is still a challenge to achieve a big memory window (threshold voltage response ∆Vth) for phototransistors. Here, a nanographene-based heterojunction phototransistor memory with large ∆Vth responses is reported. Exposure to low intensity light (25.7 µW cm−2) for 1 s yields a memory window of 35 V, and the threshold voltage shift is found to be larger than 140 V under continuous light illumination. The device exhibits both good photosensitivity (3.6 × 105) and memory properties including long retention time (>1.5 × 105 s), large hysteresis (45.35 V), and high endurance for voltage-erasing and light-programming. These findings demonstrate the high application potential of nanographenes in the field of optoelectronics. In addition, the working principle of these hybrid nanographene-organic structured heterojunction phototransistor memory devices is described which provides new insight into the design of high-performance organic phototransistor devices.
Details
Originalsprache | Englisch |
---|---|
Aufsatznummer | 2300057 |
Seitenumfang | 12 |
Fachzeitschrift | Advanced science |
Jahrgang | 10 |
Ausgabenummer | 15 |
Frühes Online-Datum | 30 März 2023 |
Publikationsstatus | Veröffentlicht - 26 Mai 2023 |
Peer-Review-Status | Ja |
Externe IDs
WOS | 000961681500001 |
---|---|
PubMed | 36995051 |
ORCID | /0000-0002-8487-0972/work/142247551 |
Schlagworte
Forschungsprofillinien der TU Dresden
DFG-Fachsystematik nach Fachkollegium
Fächergruppen, Lehr- und Forschungsbereiche, Fachgebiete nach Destatis
ASJC Scopus Sachgebiete
Schlagwörter
- memory, nanographene, organic phototransistors, photosensitivity, Nanographene, Photosensitivity, Organic phototransistors, Memory