Highly efficient modulation doping: A path toward superior organic thermoelectric devices


New academic paper from TU Dresden. Abstract "We investigate the charge and thermoelectric transport in modulation-doped large-area rubrene thin-film crystals with different crystal phases. We show that modulation doping allows achieving superior doping efficiencies even for high doping densities, when conventional bulk doping runs into the reserve regime. Modulation-doped orthorhombic rubr... » read more

Power/Performance Bits: Dec. 7


Logic-in-memory with MoS2 Engineers at École Polytechnique Fédérale de Lausanne (EPFL) built a logic-in-memory device using molybdenum disulfide (MoS2) as the channel material. MoS2 is a three-atom-thick 2D material and excellent semiconductor. The new chip is based on floating-gate field-effect transistors (FGFETs) that can hold electric charges for long periods. MoS2 is particularly se... » read more

Power/Performance Bits: Jan. 7


Ferroelectric FET Researchers at Purdue University developed a ferroelectric transistor capable of both processing and storing information. The ferroelectric semiconductor field-effect transistor is made of alpha indium selenide, which overcomes the problem of ferroelectric materials not interfacing well with silicon. “We used a semiconductor that has ferroelectric properties. This way tw... » read more

Power/Performance Bits: Sept. 17


Silicon thermoelectrics Researchers at the University of Texas at Dallas and Texas Instruments developed a new method for thermoelectric generation that could be used with electronics to convert waste heat into reusable energy. "In a general sense, waste heat is everywhere: the heat your car engine generates, for example," said Mark Lee, professor and head of the Department of Physics at UT... » read more

Power/Performance Bits: June 4


Flexible high-temp dielectric Researchers at Rice University, Georgia Institute of Technology, and Cornell University developed a new high-temperature dielectric nanocomposite for flexible electronics, energy storage, and electric devices that combines one-dimensional polymer nanofibers and two-dimensional boron nitride nanosheets. The polymer nanofibers act as a structural reinforcement, w... » read more

Power/Performance Bits: Feb. 11


Body heat harvesting Chemists at the University of Massachusetts Amherst developed a fabric that can harvest body heat to power small wearable electronics such as activity trackers. The device works on the thermoelectric effect created by body temperature and ambient cooler air. "What we have developed is a way to inexpensively vapor-print biocompatible, flexible and lightweight polymer fil... » read more

Power/Performance Bits: Feb. 27


Encryption chip A team at MIT developed a new chip to lower the power consumption of public-key cryptography for IoT devices. Software execution of encryption protocols require more energy and memory space than embedded IoT sensors can typically spare, given the need to maximize battery life. The new chip is hardwired to perform public-key encryption and consumes only 1/400 as much power as... » read more