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    Blue-Emitting Diode Shows Limitations and Promise of Perovskite Semiconductors

    Article obtained from Photonics RSS Feed.

    Scientists at the University of California, Berkeley, have created a blue light-emitting diode (LED) from halide perovskite, a new semiconductor material said to be cheap and easy to manufacture, overcoming a barrier that had previously prevented the employment of the devices. However, in the process, the team also discovered a fundamental property of halide perovskites that may prove a barrier to their widespread use as solar cells and transistors.

    In a paper appearing in the journal Science Advances, UC Berkeley chemist Peidong Yang and his colleagues show that the crystal structure of the halide perovskites reacts to temperature changes, humidity, and the chemical environment. This reaction disrupted the device’s optical and…

    Feb, 18 2020 |

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