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This seminar introduces three recent progresses that can extend the application of self-powered flexible inorganic electronics[1-26].The first part will introduce self-powered flexible piezoelectric energy harvesting technology[2,8,9].Energy harvesting technologies converting external sources(such as vibration and bio-mechanical energy)into electrical energy is recently a highly demanding issue.The high performance flexible thin film nanogenerator was fabricated by transferring the perovskite thin film from bulk substrates for self-powered biomedical devices such as cardiac pacemaker and deep brain stimulation.