Shared flowchart

Chemistry · L5 · Nanomaterials and Quantum Confinement · flowchart

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by @openstemUpdated Chemistry
Particle size shrinks belowthe exciton Bohr radiusElectron-hole pair (exciton)confined more tightlyHow does box sizechange allowed energy levels?Allowed energy levels pushedfarther apart (particle in a box)Effective band gapWIDENSHigher-energy photon neededto absorb / emitted on relaxationEmission shifts BLUERAllowed energy levelscloser togetherEffective band gapNARROWS (toward bulk value)Lower-energy photon neededto absorb / emitted on relaxationEmission shifts REDDERSmaller boxLarger box

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