Among the different allotropic forms of selenium, trigonal selenium (t-Se) is the most stable allotropic form. It contains infinite helical Se
n chain conformation along the
c-axis. The other less stable allotropic forms of Se, such as amorphous selenium (a-Se) and monoclinic Se (m-Se), can be converted into more stable t-Se. Considerable efforts have been devoted to generating t-Se nanorods, nanowires, nanobelts, and nanowire networks by employing techniques such as laser ablation [
8], sonochemical approaches [
9], solution-mediated transformations [
10], refluxing [
11], hydrothermal methods [
12], chemical vapor deposition (CVD) [
13], and biomolecule assisted methods [
14].