Dear Colleagues,

Interest in energy-harvesting technology has been rapidly growing over the past decade, due mainly to the increased demand and requirements regarding the use of sustainable power supplies in emerging technologies such as healthcare, embedded sensors, medicines, portable electronics, IoT, etc. However, the powering of such electronic devices is almost exclusively provided by batteries. Due to their limited lifetime, batteries have to be replaced sooner or later, or recharged to ensure a constant power supply to those devices. Most people do not realize that there is an abundance of energy all around us at all times. Radio and television transmissions, human body motion, temperature gradients, and vibration of household devices are all sources of energy that could be utilized. The motivation behind energy harvesting is to convert this ambient wasted energy into usable electrical energy. Sources of ambient energy which could be scavenged include solar energy; thermal energy; radiated electromagnetic energy based on photoelectric, electromagnetic, piezoelectric, pyroelectric and triboelectric effects, etc.; and mechanical vibrations that occur through walking, body movements, pulses, etc.

For this Special Issue of Micromachines, designers, engineers, and scientists are invited to contribute manuscripts that address novel ideas in micro/nanodevice principles and structures, development, and applications of energy-harvesting technology with, but not limited to, the following topics:

• Novel energy-harvesting principles and device structure designs
• Energy harvesting for powering the wearable/implantable electronics and robotics
• Energy harvesting for water industry and sewage pipe inspection
• AI and simulation tools and techniques to characterize the performance of energy-harvesting devices and associated electronics
• Development of energy storage and power management circuitry.

Dr. Chitta Saha
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Micromachines is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

• micro/nano energy harvesting
• wearable electronics and sensors
• AI
• battery storage and power management