Japan Science and Technology Agency

Japan Atomic Energy Research Institute

Shuhei Seki

Seiichi Tagawa

Masaki Sugimoto

Masahito Yoshikawa

Akinori Saeki

Satoshi Tsukuda

An evaluation systemaccording to the present invention includes: a light sourcefor exposing a pulsed white light or a pulsed laser light onto a sample; a microwave exposing and detecting unitfor exposing a microwave onto an organic materialand for detecting the intensity of the microwave which has passed through the organic material; a microwave passing unitfor making the microwave pass through the organic materiala plurality of times; and an evaluating unitfor evaluating the photoelectric conversion characteristics of the sample based on the intensity of the microwave which has passed through the organic materialwhen the pulsed white light or the pulsed laser light is exposed and the intensity of the microwave which has passed through the organic materialwhen the pulsed white light or the pulsed laser light is not exposed.

System and method for evaluating organic material for organic solar cell

A method by which ceramic nanowires with diameters ranging from several to several tens of nanometers can be synthesized with improvements in the shape retention of the nanowires and the yield of conversion to ceramic, which method comprises the steps of forming a thin film of a silicon-containing polymer usable as a ceramic precursor, irradiating the thin film with ion beams to form cylindrical crosslinked portions, extracting the un-crosslinked portions with a solvent to produce nanowires of the silicon-containing polymer, irradiating the nanowires with an ionizing radiation so that they are crosslinked again, and firing the re-crosslinked nanowires.

Ceramic nanowires and a process for producing them by ion beam irradiation

Growing community of inventors

Suita, Japan

Shuhei Seki