  Immediately after the demonstration of the high-quality electronic properties
in various two dimensional (2D) van der Waals (vdW) crystals fabricated with
mechanical exfoliation, many methods have been reported to explore and control
large scale fabrications. Comparing with recent advancements in fabricating 2D
atomic layered crystals, large scale production of one dimensional (1D)
nanowires with thickness approaching molecular or atomic level still remains
stagnant. Here, we demonstrate the high yield production of a 1D vdW material,
semiconducting Ta2Pd3Se8 nanowires, by means of liquid-phase exfoliation. The
thinnest nanowire we have readily achieved is around 1 nm, corresponding to a
bundle of one or two molecular ribbons. Transmission electron microscopy and
transport measurements reveal the as-fabricated Ta2Pd3Se8 nanowires exhibit
unexpected high crystallinity and chemical stability. Our low frequency Raman
spectroscopy reveals clear evidence of the existing of weak inter-ribbon
bindings. The fabricated nanowire transistors exhibit high switching
performance and promising applications for photodetectors.
