| About this Abstract |
| Meeting |
MS&T24: Materials Science & Technology
|
| Symposium
|
Advances in Emerging Electronic Nanomaterials: Towards Next-Generation Microelectronics
|
| Presentation Title |
Enhanced Light Harvesting of Solar Cells by Nanoscale Engineering |
| Author(s) |
Jung-Kun Lee |
| On-Site Speaker (Planned) |
Jung-Kun Lee |
| Abstract Scope |
One fundamental question of most advanced solar cells is how to harvest more incident solar energy without reducing their charge transport properties. This presentation introduces recent accomplishments on how to improve the light harvesting efficiency by nanoscale engineering. The first one is to combine a Fabry-Perot (FP) resonator and a distributed Bragg reflector (DBR) in colloidal quantum dot solar cells. The power conversion efficiency (PCE) of the thin PbS CQD solar cells with a new device structure increases by 24% without sacrificing the average visible transmittance. The second one is to apply a textured anti-reflective coating (ARC) polymeric film of engineered optical properties. The down-conversion and multiple scattering effects of the new ARC significantly improve the PCE of perovskite-silicon tandem solar cells. |