Fig. 3
From: A chiral molecular propeller designed for unidirectional rotations on a surface
Unidirectional rotation. a STM image of molecular propellers on Au(111) surface where the respective chirality of two of the propellers are indicated [Imaging parameters: Vt = −0.5 V, It = 17 pA]. b When the same area was scanned with −1 V, the ‘P’ and ‘M’ propellers are rotated to anticlockwise and clockwise directions, respectively [Imaging parameters: Vt = −1.0 V, It = 17 pA]. c An STM image of a ‘P’ propeller. d During a consecutive imaging, the propeller is rotated causing a sudden change in the image contrast (indicated with an arrow). e The final position of the propeller after the rotations [Imaging parameters: Vt = −1.0 V, It = 50 pA]. f Average rotation angle as a function of bias. The arrows indicate the threshold bias at ±1 V. g A statistical plot of the rotation
