The device detects part of the infrared spectrum, which is called short-wavelength light (the length of the
The renderer illuminates the object completely orpart by shortwave infrared light. It then converts low-energy infrared light, which is reflected back into the device, transforming into short and high-energy waves. They can be detected by the human eye.
The scientists added that the new development allowssee through smog and fog. It will also help to map the blood vessels of a person and at the same time monitor the heart rate without touching the human skin. These are just a few of the capabilities of the new device, which was developed by a group of researchers from the University of California, San Diego.
Although infrared imaging technologyhas been around for decades, most systems are expensive, bulky and complex, and often require a separate camera and display. They are commonly used with inorganic semiconductors, which are expensive, tough, and composed of toxic elements such as arsenic and lead.
The imaging device consists ofseveral semiconductor layers, each hundreds of nanometers thick, stacked on top of each other. Three of these layers, each composed of different organic polymers, are key elements of the device: a photo detector, organic light emitting diode (OLED), and an electron blocking layer.
The photodetector layer absorbs shortwaveinfrared light and then generates an electric current. This current flows to the OLED layer, where it is converted into a visible image. The electronically blocking intermediate layer keeps the OLED display layer from losing current. This is what allows the device to receive a clearer image.
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