Photo‐Driven Ion Transport for a Photodetector Based on an Asymmetric Carbon Nitride Nanotube Membrane

Abstract

Conventional photosensing devices work mainly by electron processing and transport, while visual systems in intelligence work by integrative ion/electron signals. To realize smarter photodetectors, some photoionic device or the combination of ionic and electronic devices are necessary. Now, an ion‐transport‐based self‐powered photodetector is presented based on an asymmetric carbon nitride nanotube membrane, which can realize fast, selective, and stable light detection while being self‐powered. Local charges are continuously generated at the irradiated side of the membrane, and none (fewer) at the non‐irradiated side. The resulting surface charge gradient in carbon nitride nanotube will drive ion transport in the cavity, thus realizing the function of ionic photodetector. With advantages of low cost and easy fabrication process, the concept of ionic photodetectors based on carbon nitride anticipates wide applications for semiconductor biointerfaces.

Bioinspired Ionic Sensory Systems: The Successor of Electronics

“…C) Reproduced under the terms of the CC‐BY Creative Commons Attribution 4.0 International licence ( https://creativecommons.org/licenses/by/4.0/). [ 48 ] Copyright 2019, The Authors, published by Wiley‐VCH. D) Reproduced with permission.…”

Graphitic carbon nitride and polymers: a mutual combination for advanced properties

“…Recently, other methods like chemical vapor deposition or electrochemical deposition were introduced for fabricating film or membrane g-C 3 N 4 . 39 The microwave method was utilized as well, e.g. to produce fluorescent g-C 3 N 4 .…”

Kalium‐Polyheptazinimid: Ein übergangsmetallfreier Festkörper‐Triplett‐Sensibilisator in Kaskadenenergietransfer und [3+2]‐Cycloadditionen

“…[4][5][6] Tatsächlich beeinflusste die Erzeugung von Wasserstoff aus Wasser, mithilfe von polymerem Kohlenstoffnitrid, die Arbeit in verwandten Bereichen, wie photoelektrochemischen Zellen, [7] metallfreien Elektroden [8,9] und Elektrolumineszenzvorrichtungen. [10] Darüber hinausgehend sind es autonome Aktuatoren, [11] Photodetektoren, die auf photonengetriebenen Ionentransport in asymmetrischen Kohlenstoffnitridmembranen basieren, [12] und lichtgesteuerte Ionenpumpen. [13] Polymere Kohlenstoffnitridmaterialien sind auch vielseitige und zuverlässige heterogene Photokatalysatoren fürdie Herstellung von wertvollen organischen Verbindungen.…”