Abstract: The invention provides a novel fabrication method to produce solar cells using water-based inks that can be readily used in roll-to-roll processing, ink-jet printing and other large-scale fabrication processes. The invention also provides OPV devices with significantly improved efficiency. The invention offers a number of advantages over existing methods: (1) use of water dispersions instead of environmentally hazardous organic solvents, (2) use of semiconducting nanoparticles that allow control of the domain size and structure, (3) treatment of PEDOT:PSS using UV/Ozone allows film uniformity from aqueoue dispersions, (4) use of heat-IR radiation to make uniform films, (5) use of hole-blocking layer for increased fill factors (squareness of the I-V curve, the ratio between the maximum power obtained and the maximum power obtainable defined by the open circuit voltage and the short circuit current).

Abstract: The present technology provides a color-sensing device that includes an electrically-conductive substrate and a bulk heterojunction (BHJ) polymer layer formed on the substrate. The color-sensing device is configured to detect a first color of two colors and produce a first electrical signal that includes a first current response indicating detection of the first color. The color-sensing device is further configured to detect a second color of the two colors and produce a second electrical signal that includes a second current response indicating detection of the second color.

Abstract: The present technology provides an organic based artificial retina device that includes a substrate and an array of micro-electrodes formed on the substrate. The illustrative artificial retina device further includes a photoconducting polymer blend deposited on the array of micro-electrodes. The photoconducting polymer blend is configured to produce a photoelectric signal in response to receiving light.

Abstract: The present technology provides a color-sensing device that includes an electrically-conductive substrate and a bulk heterojunction (BHJ) polymer layer formed on the substrate. The color-sensing device is configured to detect a first color of two colors and produce a first electrical signal that includes a first current response indicating detection of the first color. The color-sensing device is further configured to detect a second color of the two colors and produce a second electrical signal that includes a second current response indicating detection of the second color.

Abstract: The present technology provides an organic based artificial retina device that includes a substrate and an array of micro-electrodes formed on the substrate. The illustrative artificial retina device further includes a photoconducting polymer blend deposited on the array of micro-electrodes. The photoconducting polymer blend is configured to produce a photoelectric signal in response to receiving light.