Abstract
The all-optical hot carrier solar cell (aoHCSC) is an intriguing device concept which circumvents HC thermalization by feeding HCs into local radiative recombination centers. These have transition energies above the HC absorber (HCA) bandgap and are located within the HCA to match the HC ballistic mean free path, suppressing HC cooling as major loss mechanism. HC energy extraction proceeds by photon emission. We propose a technologically feasible concept of the aoHC energy converter (aoHCEC) which feeds into a conventional solar cell with its bandgap matching the emitted photons. Using real materials, the concept builds upon waveguides within a HCA which consist of highly polar direct bandgap material to promote radiative carrier recombination. (C) 2015 The Japan Society of Applied Physics
| Original language | English |
|---|---|
| Article number | 08KA03 |
| Number of pages | 4 |
| Journal | Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers |
| Volume | 54 |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - Aug 2015 |
| Externally published | Yes |
| Event | 24th International Photovoltaic Science and Engineering Conference/6th World Conference on Photovoltaic Energy Conversion, 2014 - Kyoto, Japan Duration: 23 Nov 2014 → 27 Nov 2014 |