The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
TY - UNPB AU - Moody, N.A. AU - Smedley, J. ED - Schaa, Volker R.W. ED - Decking, Winfried ED - Sinn, Harald ED - Geloni, Gianluca ED - Schreiber, Siegfried ED - Marx, Michaela TI - State-of-the-Art Photocathodes and New Developments J2 - Proc. of FEL2019, Hamburg, Germany, 26-30 August 2019 CY - Hamburg, Germany T2 - Free Electron Laser Conference T3 - 39 LA - english AB - Development of photoemission electron sources for advanced light sources such as X-ray Free Electron Lasers (xFEL), ultra-fast electron diffraction (UED), and low-light sensor applications has motivated a comprehensive engineered-material approach integrating predictive computational physics models, advanced nano-synthesis methods and characterization with in-situ correlated study of photoemission performance and properties . Techniques such as compositionally graded stoichiometry, heterostructured architectures, and quantum features, allowing for enhanced optoelectronic properties . These methods influence the mechanisms of photoemission but have not, until recently, been applied toward photocathode applications . Recent results from a growing collaboration effort involving advanced synthesis, X-ray synchrotron characterization, and modeling efforts show the efficacy of these approaches. Highlights of these studies, including predictions and experimental data, are presented as well as future plans to exploit controlled functionality of nanomaterials for photocathodes and other optoelectronic devices. PB - JACoW Publishing CP - Geneva, Switzerland ER -