High fidelity nano-structures and arrays for photovoltaics and methods of making the same

摘要

A photovoltaic device includes an electron accepting material and an electron donating material. One of the electron accepting or donating materials is configured and dimensioned as a first component of a bulk heterojunction with a predetermined array of first structures, each first structure is substantially equivalent in three dimensional shape, has a substantially equivalent cross-sectional dimension, and where each first structure of the array of first structures has a substantially equivalent orientation with respect to adjacent first structures of the predetermined array forming a substantially uniform array.

主权项

1. A method for harvesting micro- and/or nano-particles, comprising:
a) contacting a harvesting layer and one or more of the micro- and/or nano-particles, wherein the harvesting layer is associated with a surface of the one or more micro- and/or nano-particles, wherein prior to said contacting, each of the one or more micro- and/or nano-particles resides in a discrete recess of a polymer mold, and wherein the harvesting layer has an affinity for the particles greater than the affinity of the particles for the polymer mold; b) dissociating the harvesting layer from the polymer mold, wherein the one or more micro- and/or nano-particles are removed from the recess of the polymer mold to prepare harvested particles, wherein the harvested particles are in communication with the harvesting layer; wherein the harvested particles are a plurality of monodisperse particles.