Fig. 4. Polarization-resolved photodetector based on SWCNT–MoS2 heterostructures. (a) Schematic diagram of the polarization-dependent absorption measurement. (b) Polarization-sensitive absorption spectrum of SWCNT–MoS2 hybrid films. Scale bar: 10 μm. (c) Spatial distribution of photocurrent under excitation by 0°, 90°, and 180° linearly polarized 532 nm lasers. Scale bar: 2 μm. (d) Linear polarized light dependence of photocurrent under 532 nm illumination. (e) Polar coordinates of the polarization-sensitive photoresponse under 532 nm laser illumination.
