Engineering

Mystery of negative capacitance in perovskite solar cells solved

On the verge of outcompeting current thin-film solar cells, perovskite solar cells seem to embody an ideal solar cell with high efficiency and low cost. However, they have poor long-term stability, which remains a challenge. ...

Electronics & Semiconductors

Tiny micro supercapacitor for wearable devices

A tiny microsupercapacitor (MSC) that is as small as the width of a person's fingerprint and can be integrated directly with an electronic chip has been developed. This has attracted major attention as a novel technology ...

Engineering

Researchers 3D print components for a portable mass spectrometer

Mass spectrometers, devices that identify chemical substances, are widely used in applications like crime scene analysis, toxicology testing, and geological surveying. But these machines are bulky, expensive, and easy to ...

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Chemical engineer

In the field of engineering, a chemical engineer is the profession in which one works principally in the chemical industry to convert basic raw materials into a variety of products, and deals with the design and operation of plants and equipment to perform such work. In general, a chemical engineer is one who applies and uses principles of chemical engineering in any of various practical applications; primarily with respect to the study of the design, manufacture, and operation of plant and machinery in industrial chemical and related processes. However, modern chemical engineers are becoming more heavily involved in the development of new technologies such as fuel cells, hydrogen power and nanotechnology, as well as working in fields such as polymer engineering and biomedical engineering. A number of famous or historical chemical engineers can be found in the list of chemical engineers.

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