Mirror-image photoswitching of individual single-walled carbon nanotube transistors coated with titanium dioxide.
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.
Liu
Song
S
Center for Nanochemistry, Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, PR China.
Li
Jianming
J
Shen
Qian
Q
Cao
Yang
Y
Guo
Xuefeng
X
Zhang
Guoming
G
Feng
Chaoqun
C
Zhang
Jin
J
Liu
Zhongfan
Z
Steigerwald
Michael L
ML
Xu
Dongsheng
D
Nuckolls
Colin
C
D053768:Metal Nanoparticles / Q000737:chemistry; D037742:Nanotubes, Carbon / Q000737:chemistry*; D010777:Photochemistry; D045663:Quantum Dots; D014025:Titanium / Q000737:chemistry*; D014173:Transistors, Electronic
D037742:Nanotubes, Carbon; C009495:titanium dioxide; D014025:Titanium