Sean Hill

Sean Hill
– Blue Suspension –

Department – Chemistry and Biology (Graduate Student) –
Research Field – Materials Chemistry –
How image was captured – DSLR –

Research Impact & Significance – Organic crystals suspended in solution emit a greenish-blue color. This organic molecule was used for studies in enhancing dye-sensitized solar cell (DSSC) efficiencies. The process responsible for this phenomenon, known as photon upconversion via triplet-triplet annihilation (TTA-UC), makes use of small molecules to convert two low energy photons into one higher energy photon through the annihilation of triplet states to form a higher energy singlet state species. TTA-UC has recently been shown by our group to be a viable method of harvesting lower energy photons that typically cannot be utilized by a traditional DSSC and upconverting them for direct enhancement of the device’s current output. Theoretical studies have yielded efficiency increases upwards of 11% with the integration of TTA-UC into the device architecture.

Research Group Website

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s