Quantum dots (QDs) are nanoscale semiconductor particles which have the ability to emit light of specific frequencies in response to interactions with light. Because these frequencies can be precisely tuned by changing the dots' size, shape and material, quantum dots have potential applications ranging from television displays to biomedical imaging. As nanocrystalline materials are being incorporated into a wider array of devices, Indium Phosphide QDs are being seen as a promising alternative due to their lower toxicity compared to more extensively studied cadmium and lead materials. This project aimed to initiate the process of characterizing these specific nanocrystals through the determination of molar absorptivities as a function of InP QD size. Molar absorptivities were calculated by combining steady-state absorption measurements with the determinations of Indium concentration using atomic absorption spectroscopy and QD size using transmission electron microscopy.<br/>

Size dependent optical properties of InP quantum dots

2019 Spring National Meeting

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