▎ 摘　　要

NOVELTY - Graphene oxide has: a wide and gentle peak in the infrared absorption spectrum over a wavelength of 1300-3000 cm-1; or a wide and gentle peak in the infrared absorption spectrum in the wavelength of 1300-3000 cm-1, and in X-ray photoelectron spectroscopy, the proportion of carbon atoms having sp2 bonds is 10% or more. USE - The graphene oxide is used in a semiconductor devices, display devices, LCD devices, light emitting devices, lighting devices, power storage devices, storage devices, recording of a display device such as a television or a monitor, a lighting device, a desktop or notebook type personal computer, a word processor, a DVD image playback device, portable CD player, radio, tape recorder, headphone stereo, table clock, wall clock, cordless telephone handset, transceiver, portable radio, mobile phone, earphones, portable game machines, calculators, mobile information terminals, electronic notebooks, electronic books, electronic translators, voice input devices, video cameras, digital still cameras, toys, electric shavers, high-frequency heating devices such as microwave ovens, electric rice cookers, electric washing machine, electric vacuum cleaner, water heater, fan, hair dryer, air conditioner, humidifier, dehumidifier and other air conditioning equipment, dishwasher, dish dryer, clothes dryer, duvet dryer, electric refrigerator, electric freezers, electric refrigerators and freezers for storing DNA, electric tools such as flashlights and chainsaws, smoke detectors, and medical devices such as dialysis machines, industrial equipment such as guide lights, traffic lights, conveyor belts, elevators, escalators, industrial robots, power storage systems, power leveling and power storage devices for smart grids, an electric vehicle (EV), a hybrid electric vehicle (HEV) having both an internal combustion engine and an electric motor, a plug-in hybrid electric vehicle (PHEV), a tracked vehicle in which these tire wheels are changed to an infinite track, and an electric assist, bicycles, motorcycles, electric wheelchairs, golf carts, small or large vessels, submarines, helicopters, aircraft, rockets, artificial satellites, space explorers and planetary explorers, and spacecraft. ADVANTAGE - The graphene oxide has excellent dispersibility in a solvent and high electrical conductivity.