Photoionization cross section of 1s orthoexcitons in cuprous oxide
نویسندگان
چکیده
Laszlo Frazer,1,* Kelvin B. Chang,2 Kenneth R. Poeppelmeier,2,3 and John B. Ketterson1,4 1Department of Physics, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3112, USA 2Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3112, USA 3Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439, USA 4Department of Electrical Engineering and Computer Science, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3112, USA (Received 6 March 2014; revised manuscript received 17 June 2014; published 30 June 2014)
منابع مشابه
Theory of enhanced dynamical photo-thermal bi-stability effects in cuprous oxide/organic hybrid heterostructure
We theoretically demonstrate the formation of multiple bi-stability regions in the temperature pattern on the interface between a cuprous oxide quantum well and DCM2:CA:PS organic compound. The Frenkel molecular exciton of the DCM2 is brought into resonance with the 1S quadrupole Wannier-Mott exciton in the cuprous oxide by ”solvatochromism” with CA. The resulting hybrid is thermalized with sur...
متن کاملShake-up processes following K-shell photoionization in the Boron isoelectronic sequence
The direct and conjugate shake-up cross sections for the 2p → 3p, 3s and 2s → 2p, 3s transitions are calculated for CII, NIII, OIV, FV and NeVI in a close-coupling approximation using the R-matrix method. We find that the total shake-up cross section relative to that for single photoionization decreases with increasing Z. The decrease is about a factor 10 when going from BI to NeVI. When the fu...
متن کاملEvaluation of defects in cuprous oxide through exciton luminescence imaging
The various decay mechanisms of excitons in cuprous oxide (Cu2O) are highly sensitive to defects which can relax selection rules. Here we report cryogenic hyperspectral imaging of exciton luminescence from cuprous oxide crystals grown via the floating zone method showing that the samples have few defects. Some locations, however, show strain splitting of the 1s orthoexciton triplet polariton lu...
متن کاملPhotoionization cross section for He in the hyperspherical coordinate method
The hyperspherical coordinate method developed by Macek, Fano, Lin, and Klar to describe two-electron correlations is used for the first time to treat an atomic photoionization process. Using adiabatic approximations for both the initial and the final state, the cross section for the process He +γ +He+1s +e– is calculated and is found to lie 1% higher than the revised experimental data of Samso...
متن کاملVibrationally Resolved B 1s Photoionization Cross Section of BF3.
Photoelectron diffraction is a well-established technique for structural characterization of solids, based on the interference of the native photoelectron wave with those scattered from the neighboring atoms. For isolated systems in the gas phase similar studies suffer from orders of magnitude lower signals due to the very small sample density. Here we present a detailed study of the vibrationa...
متن کامل