Roll-to-roll processing of thin film solar cells on flexible low cost substrates is an attractive option to lower the production cost of photovoltaic modules. Plastic substrates like PET or PEN are insulating which potentially offers advantages compared to conducting steel foils. However, plastic substrates require lower processing temperatures and novel schemes for efficient light trapping. In...

This paper reports experiments measuring the e ects of nite precision arithmetic in the range of 4 to 16 bits on three particular pattern-recognition algorithms: an optical character recognizer [1], a pen-based character recognizer [2], and a speech recognizer [3]. The measurements shows that large portions of these algorithms can be implemented with 8-bit arithmetic (e.g. using Intel's MMX ins...

Polymer microlenses have been manufactured by delivering droplets of a monomer mixture to a glass substrate using a nano fountain pen (NFP). Subsequent UV polymerization yielded microlenses with optical properties that were controlled by varying the deposition time of the monomer solution. Using this approach, it is possible to strategically place single microlenses at predefined positions with...

Integration of individual nanoparticles into desired spatial arrangements over large areas is a prerequisite for exploiting their unique electrical, optical, and chemical properties. However, positioning single sub-10-nm nanoparticles in a specific location individually on a substrate remains challenging. Herein we have developed a unique approach, termed scanning probe block copolymer lithogra...

Objective of the current work is to develop an Optical Character Recognition (OCR) engine for information Just In Time (iJIT) system that can be used for recognition of handwritten textual annotations of lower case Roman script. Tesseract open source OCR engine under Apache License 2.0 is used to develop user-specific handwriting recognition models, viz., the language sets, for the said system,...

This paper explores the use of physical signs as anchors for digital annotations and other information. In our prototype system, the user carries a camera-equipped handheld device with pen-based input to capture street signs, restaurant signs, and shop signs. Image matching is supported by interactively established point correspondences. The captured image along with context information is tran...