File:InGaN crystal SEM+CL.png
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Summary
| Description | English: Indium-gallium nitride is a semiconductor alloy that emits light when irradiated by energetic particles. A small crystal cluster has accidentally grown during the w:MOVPE process. The lightness corresponds to its standard w:SEM image, whereas the colour overlayers were added according to the light emitted under the electron beam. Blue and green channels are roughly natural colours, while red encodes the ultraviolet emission. The image demonstrates that InGaN/GaN structures are highly anisotropic, and so are their cathodoluminescence properties. Image taken in the Institute of Physics, Czech Academy of Sciences, using Philips XL30 ESEM equipped with custom color-resolved cathodoluminescence photomultiplier setup. Author acknowledges the great help of R. Horešovksý. Čeština: Nitrid india a gallia je polovodičová slitina, která jasně svítí při dopadu částic ionizujícího záření. Drobná krystalová drúza vznikla omylem během růstu metodou w:cz:MOVPE. Světlost odpovídá obvyklému elektronovému w:SEM obrazu, zatímco barevné vrstvy byly přeloženy na základě světla emitovaného pod elektronovým paprskem. Modrý a zelený kanál odpovídají zhruba přirozeným barvám, kdežto červený kanál odpovídá ultrafialovému záření. Obrázek ukazuje silnou anizotropii struktur na bázi InGaN, která se projevuje i na jejich katodoluminiscenčním chování. |
| Date | |
| Source | Own work |
| Author | FDominec |
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This image was uploaded as part of Wiki Science Competition 2017. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 10:00, 27 November 2017 | | 1,298 × 928 (1.73 MB) | FDominec | User created page with UploadWizard |
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