| Title | Broadband Near-Infrared to Visible Upconversion in Quantum Dot–Quantum Well Heterostructures |
| Author | Ayelet Teitelboim and Dan Oron* |
| Affiliation(s) | Department of Physics of Complex Systems, Weizmann Institute of Science, Rehovot, Israel |
| Published | ACS Nano, 2016, 10 (1), pp 446–452 DOI: 10.1021/acsnano.5b05329 |
| Keyword | interband absorption; intraband absorption; near-infrared; quantum dot-quantum well; semiconductor nanocrystals; upconversion |
| Snippet | |
| Abstract | Upconversion is a nonlinear process in which two, or more, long wavelength photons are converted to a shorter wavelength photon. It holds great promise for bioimaging, enabling spatially resolved imaging in a scattering specimen and for photovoltaic devices as a means to surpass the Shockley–Queisser efficiency limit. Here, we present dual near-infrared and visible emitting PbSe/CdSe/CdS nanocrystals able to upconvert a broad range of NIR wavelengths to visible emission at room temperature. .. |
