1：Experimental Design and Method Selection:

SbSI microrods were synthesized by hydrothermal method using SbCl3, S powder, and excessive iodine (I2) as raw materials. The teflon-lined autoclave was filled with deionized water up to 80% of the total volume and then maintained at 180 °C for 20 h.

2：Sample Selection and Data Sources:

The dark-red SbSI microrods were collected after being washed several times with absolute ethanol and deionized water.

3：List of Experimental Equipment and Materials:

Field emission scanning electron microscope (s4800, Hitachi), powder X-ray diffraction (XRD) (Rigaku D/max-2550), inVia-Reflex laser Raman spectrometer, Shimadzu UV3600 UV-vis-NIR spectrophotometer.

4：Experimental Procedures and Operational Workflow:

The SbSI microrod was transferred to the SiO2/Si substrate and the PI flexible substrate by using clean tweezers. Sliver paste is dipped by using probe with the diameter of ~1 μm tip and is deposited on both ends of the SbSI microrod.

5：Data Analysis Methods:

The current-voltage (I-V) characteristics measurement of the devices were conducted by using the semiconductor characterization system (SCS, Keithely-4200) on a probe station at room temperature.