A method is provided for making a device comprising aligned semiconducting
nanoparticles and a receptor substrate comprising the steps of: a)
aligning a plurality of first semiconducting nanoparticles; b) depositing
the aligned first semiconducting nanoparticles on a first donor sheet;
and c) transferring at least a portion of the aligned first
semiconducting nanoparticles to a receptor substrate by the application
of laser radiation. Typically, the semiconducting nanoparticles are
inorganic semiconducting nanoparticles. The alignment step may be
accomplished by any suitable method, typically including: 1) alignment by
capillary flow in or on a textured or microchanneled surface; 2)
alignment by templating on a self-assembled monolayer (SAM); 3) alignment
by templating on a textured polymer surface; or 4) alignment by mixing in
a composition that includes nematic liquid crystals followed by shear
orientation of the nematic liquid crystals. In some embodiments, the
method additionally comprises the steps of: d) aligning a second
plurality of second nanoparticles; e) depositing the aligned second
nanoparticles on the same donor sheet or a second donor sheet; and f)
transferring at least a portion of the aligned second nanoparticles to
the same receptor substrate by the application of laser radiation. The
second nanoparticles may be conducting particles, non-conducting
particles, or semiconducting nanoparticles, including inorganic
semiconducting nanoparticles, and may be the same or different in
composition from the first semiconducting nanoparticles. In addition,
devices made according to the methods of the present invention are
provided.