Mirror‐Image Photoswitching of Individual Single‐Walled Carbon Nanotube Transistors Coated with Titanium Dioxide

Abstract

Dotting the i's: Stimuli-responsive optoelectronic devices are formed from the title transistors functionalized with photoactive quantum dots. The p-type semiconducting tubes show a fast current decrease under UV irradiation and reversibility when the UV irradiation is switched off. In contrast, ambipolar tubes show mirror-image photoswitching effects when negative and positive gate bias voltages are applied.