年卷期:Dr. Tze Chien Sum is an Associate Professor in the Division of Physics and Applied Physics (PAP), School of Physical and Mathematical Sciences (SPMS), Nanyang Technological University (NTU), where he leads the Femtosecond Dynamics Laboratory. He received his Ph.D. in Physics from the National University of Singapore (NUS) in 2005. His present research focuses on investigating light–matter interactions and energy and charge transfer mechanisms and probing carrier and quasi-particle dynamics in a broad range of emergent nanoscale and light harvesting systems.Dr. Nripan Mathews is an Assistant Professor at the School of Materials Engineering in NTU. He pursued his Ph.D. at a joint Commissariat à l’énergie atomique (CEA)–Centre national de la recherche scientifique (CNRS)–Universite de Pierre et Marie Curie (Paris VI University) laboratory in 2008. His research focuses on a wide variety of novel materials (metal oxides, organic semiconductors, graphene, carbon nanotubes, sulfides, and selenides) and novel morphologies (one-dimensional structures such as nanowires and nanotubes, thin films, and two-dimensional nanosheets) produced through a range of fabrication procedures.Dr. Guichuan Xing is a Senior Postdoctoral Research Fellow at the Femtosecond Dynamics Laboratory at PAP, SPMS, NTU, Singapore. He received his Ph.D. in Physics from NUS in 2011. His research interests are in the development and application of ultrafast nonlinear optical probes and analysis methods to study novel organic and inorganic materials based optoelectronic devices.Mr. Swee Sien Lim received his B.S. degree in Applied Physics from NTU in 2013 and continued as a Ph.D. candidate under the supervision of A/P Tze Chien Sum. His research focuses on probing the ultrafast charge carrier dynamics in perovskite solar cells and understanding the intrinsic photophysical properties of perovskites.Mr. Wee Kiang Chong received his B.S. degree in Applied Physics from NTU in 2013 and is a Ph.D. candidate at NTU under the supervision of A/P Tze Chien Sum. His current research includes understanding the carrier recombination and photon amplification mechanisms in light emitting perovskites.Mr. David Giovanni is currently a Ph.D. candidate at NTU under the supervision of Ast/P Nripan Mathews and A/P Tze Chien Sum. He received his B.Sc. degree in Physics from NTU in 2014. His current research focuses on exploration and fundamental study of novel ultrafast spin phenomena and dynamics in organic–inorganic hybrid perovskite for applications in opto-spintronics.Dr. Herlina Arianita Dewi received her Ph.D. from NTU in 2014. Currently she is working as a research fellow in Energy Research Institute @NTU (ERI@N) Singapore. Her main research interest is focused on organometallic halide perovskites for photovoltaic applications.