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Shi, W. (author), Callewaert, Vincent (author), Barbiellini, Bernardo (author), Saniz, Rolando (author), Butterling, M. (author), Egger, Werner (author), Dickmann, Marcel (author), Hugenschmidt, Christoph (author), Shakeri, Behtash (author), Brück, E.H. (author), Eijt, S.W.H. (author)Previous studies have shown that positron-annihilation spectroscopy is a highly sensitive probe of the electronic structure and surface composition of ligand-capped semiconductor quantum dots (QDs) embedded in thin films. The nature of the associated positron state, however, whether the positron is confined inside the QDs or localized at...journal article 2018
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Eijt, S.W.H. (author), Shi, W. (author), Mannheim, A. (author), Butterling, M. (author), Schut, H. (author), Egger, W (author), Dickmann, M. (author), Hugenschmidt, C (author), Shakeri, B. (author), Meulenberg, R.W. (author), Callewaert, V. (author), Saniz, R (author), Partoens, B (author), Barbiellini, B (author), Bansil, A (author), Melskens, J. (author), Zeman, M. (author), Smets, A.H.M. (author), Kulbak, M. (author), Hodes, G. (author), Cahen, D. (author), Brück, E.H. (author)Recent studies showed that positron annihilation methods can provide key insights into the nanostructure and electronic structure of thin film solar cells. In this study, positron annihilation lifetime spectroscopy (PALS) is applied to investigate CdSe quantum dot (QD) light absorbing layers, providing evidence of positron trapping at the...journal article 2017