Print Email Facebook Twitter Model To Determine a Distinct Rate Constant for Carrier Multiplication from Experiments Title Model To Determine a Distinct Rate Constant for Carrier Multiplication from Experiments Author Spoor, F.C.M. (TU Delft ChemE/Opto-electronic Materials) Grimaldi, G. (TU Delft ChemE/Opto-electronic Materials) Kinge, Sachin (Toyota Motor Europe) Houtepen, A.J. (TU Delft ChemE/Opto-electronic Materials) Siebbeles, L.D.A. (TU Delft ChemE/Opto-electronic Materials) Date 2019 Abstract Carrier multiplication (CM) is the process in which multiple electron–hole pairs are created upon absorption of a single photon in a semiconductor. CM by an initially hot charge carrier occurs in competition with cooling by phonon emission, with the respective rates determining the CM efficiency. Up until now, CM rates have only been calculated theoretically. We show for the first time how to extract a distinct CM rate constant from experimental data of the relaxation time of hot charge carriers and the yield of CM. We illustrate this method for PbSe quantum dots. Additionally, we provide a simplified method using an estimated energy loss rate to estimate the CM rate constant just above the onset of CM, when detailed experimental data of the relaxation time is missing. Subject carrier multiplicationelectron-hole pairsquantum dotsquantum yieldsemiconductor To reference this document use: http://resolver.tudelft.nl/uuid:b035af47-be95-4d70-9afb-b56a3fd6beb9 DOI https://doi.org/10.1021/acsaem.8b01779 ISSN 2574-0962 Source ACS Applied Energy Materials, 2 (1), 721-728 Part of collection Institutional Repository Document type journal article Rights © 2019 F.C.M. Spoor, G. Grimaldi, Sachin Kinge, A.J. Houtepen, L.D.A. Siebbeles Files PDF acsaem.8b01779.pdf 1.6 MB Close viewer /islandora/object/uuid:b035af47-be95-4d70-9afb-b56a3fd6beb9/datastream/OBJ/view