Level 1:
CarbonCatalyticEnergyFabricationMaterial compositionMorphologyNano biologyNano detectionNano deviceNano unitSemiconductorSynthesisTheory
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Level 2:
ALLDevices Field effect transistorsOptoelectronic devicesSensors
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Level 3:
ALLDefectsElectronsIrradiationLightLight emission Light emitting diodes Light sourcesLuminescenceOptical correlationOptical data processing Optical data storageOptical tweezers Optoelectronic devicesPhotocathodesPhotochromismPhotocurrents PhotodetectorsPhotodiodesPhotoelectric devicesPhotoelectricityPhotoelectronsPhotonic band gapPhotonic crystalsPhotonic devicesPhotonsPhototransistors
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