In this paper, Bi 2 S 3 nanorods were successfully
synthesized via a facile one-pot hydrothermal method and
characterized by X-ray diffraction, field emission scanning
electron microscopy, transmission electron microscopy
and X-ray photoelectron spectroscopy. Then the Bi 2 S 3
nanorods were deposited on Au interdigital electrodes by
dip-coating to fabricate photodetectors. The photoresponse
properties using Bi 2 S 3 nanorods as a representative system
showed a significantly enhanced conductivity and the
current-voltage (I-V) characteristic exhibited about ca. 2
orders of magnitude larger than the dark current. The
response and decay time was estimated to be ~371.66 and
386 ms, respectively, indicating Bi 2 S 3 may be an excellent
candidate for high speed and high-sensitivity photoelec-
trical switches and light sensitive devices.

• Building one-dimensional Bi 2 S 3 nanorods as enhanced photoresponding materials for photodetectors