Fig. 1: Characterization and performance evaluation of a CPL detector incorporating CLCN film. | Nature Communications

Fig. 1: Characterization and performance evaluation of a CPL detector incorporating CLCN film.

From: Polarization-sensitive in-sensor computing in chiral organic integrated 2D p-n heterostructures for mixed-multimodal image processing

Fig. 1

a Schematic representation of a circularly polarized light (CPL) detector detailing the operational principle of the device, where selective reflection and absorption of CPL are achieved via cholesteric liquid crystal network (CLCN) film and MoTe2/MoS2 heterostructure, respectively. b Transmission efficiency of CPL through R-form and S-form configurations of the fabricated CLCN film. c Schematic representation of a semi-vertical MoTe2/MoS2 structure, highlighting an effective operational strategy. d Band structure of a semi-vertical van der Waals (vdW) MoTe2/MoS2 p-n diode. e Optical microscopy image of a MoTe2/MoS2 semi-vertical van der Waals p-n diode. Scale bar is 10 µm. f Spectral responsivity of a MoTe2/MoS2 p-n diode without CLCN film, serving as a control benchmark. g Responsivity profiles of R-form and S-form CLCN-integrated photodiodes (CIPs). Photocurrent mapping in (h), R-form and (i), S-form CIPs, respectively. Each panel shows the response under left-handed circularly polarized light (LH-CPL) on the left and right-handed circularly polarized light (RH-CPL) on the right. Scale bar is 10 µm.

Back to article page