Clemson University

Ramakrishna Podila

Apparao M Rao

Mark E Roberts

Yongchang Dong

Robert K Emmett

Sai Sunil Kumar Mallineni

Herbert W Behlow

Devices and methods relate to a portable self-powered wireless sensor and transmitter providing a tactile driven electric generator, using a 3D printed nano carbon and polymer electrodes. The device has two electrodes capable of producing greater than 2000 V, which when connected to a metal conductor is sufficient to create an electric field that can be used to wirelessly communicate a signal over a range of a few tens of meters. The sensor is completely self-powered and requires no motors or additional power such as active power supplies, batteries, or capacitors. The sensor generated waveform can be modulated by mechanical action such as hand tapping in a given sequence, which is preserved in the wireless signal (akin to Morse coding) and can be detected by existing compatible commercial electronic receivers. Resulting devices are suitable for security applications requiring wireless transmission of codes.

Self powered wireless sensor

Embodiments of the present disclosure, in one aspect, relate to composites including a carbon nanomaterial having a redox-active material, such as a polymer containing redox groups, disposed on the carbon nanomaterial, methods of making the composite, methods of storing energy, and the like.

Polymer-nanocarbon composites, methods of making composites, and energy storage devices including the composite

Growing community of inventors

Clemson, SC, United States of America

Ramakrishna Podila