Electrical excitation of a perovskite light-emitting diode is shown to contribute to optical gain, a milestone on the path towards a non-epitaxial laser diode.

中文翻译：

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一点增益，电注入

钙钛矿发光二极管的电激发被证明有助于光学增益，这是通向非外延激光二极管的里程碑。