Professor of Physical Chemistry, Ecole Polytechnique Federale de Lausanne, EPFL

University of North Carolina, Chapel Hill

Sir Sze-Yuen Chung Endowed Prof./ Chair Prof. / Hong Kong Polytechnic Univ.

Professor of Optoelectronics, University of Cambridge

Helmholtz-Zentrum Berlin

Director, Institute for Photovoltaics (ipv), University of Stuttgart; Forschungszentrum Jülich

Professor, City University of Hong Kong

Marie Curie IOF Fellow, Stanford

ZHAW

Central South University (2016-now); Univerisity of Nebraska-lincoln (2009-2016).