Abstract
Efficient quantum cutting by the Pr3+-Yb3+ couple is demonstrated for the conversion of blue/green to near-infrared (NIR) radiation with quantum efficiencies close to 200%. The resonant two-step energy transfer process, which involves one higher-energy photon becoming two NIR photons, may lead to the reduction of energy loss in solar cells, revealing how spectral conversion is a promising avenue for boosting solar-cell efficiency.
| Original language | Undefined/Unknown |
|---|---|
| Pages (from-to) | 3073-3077 |
| Number of pages | 5 |
| Journal | Advanced Materials |
| Volume | 21 |
| Issue number | 30 |
| Publication status | Published - 2009 |