Electronic Devices

Electronic devices are utilized for controlling the flow of electrical currents for the purpose of information processing and system control. Electronic materials are the type of materials which are typically used as core elements in a variety of device applications. Electronic devices are generally small devices and can be grouped together into packages called integrated circuits. This miniaturization is central to the great prosperity of modern electronics.

There are new and innovative materials, structures, process, and design technologies that are being explored for nanoelectronics, energy, environment, and biomedical applications. What are the best innovated electronic devices up to date?

Television

Through a television, you are able to receive news, sports, entertainment, information, and commercials. Have you ever thought about the technology that made this possible? How can a television decode the signals to produce the motion picture?

The old-style, a television with a cathode-ray tube receives the incoming signal and breaks it into its separate audio and video components. The audio part feeds into an audio circuit, which uses a loudspeaker to recreate the original sound recorded in the TV studio. Meanwhile, the video signal is sent to a separate circuit. This fires a beam of electrons that are fast-moving, negatively charged particles inside an atom, down a long cathode-ray tube. The modern televisions are called LCD (liquid-crystal display) televisions that have a million of tiny picture elements called pixels that can be switched on or off electronically to make a picture. Each pixel is made up of three smaller red, green, and blue sub-pixels. Since there is no cumbersome cathode-ray tube and phosphor screen, LCDs screens are much more compact and energy efficient than older TV receivers.

Cellphone

Mobile phones contain a large amount of circuitry, each of which is carefully designed to optimize the performance of the phone. The cell phone has an analog electronics and digital circuits that ranges from processors to display and keypad electronics. A mobile phone typically consists of a single board, but within this, there are a number of distinct functional areas that are designed to be integrated as one. Radio frequency receiver and transmitter, digital signal processor, analog and digital conversion, control processor, SIM card, and power control and battery are needed to assemble a cellphone.

Heart Monitors

A heart rate monitor is a personal monitoring device that can monitor a person to measure one’s heart rate in real time or record the heart rate.

Respiratory ventilators

A machine built to administer breathable air into and out of the lungs, to provide breathing for a patient who is physically unable to breathe, or has an insufficient breathing.

All of the above has been possible because of continuous efforts to improve the fundamental understanding of the electronic properties of various devices. This is complemented by the existing advancement in the process and fabrication technologies. The ever-changing dimensions and level of functionality require continuous efforts to develop state of the art materials to meet the technological challenges associated with the development of these devices.

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