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MolES Seminar: Dr. Christopher Giebink (Penn State University)
MolES Seminar: Dr. Christopher Giebink (Penn State University)
WhenTuesday, Feb 11, 2020, 1 – 2 p.m.
Campus locationMolecular Engineering (MOL)
Campus roomNanoES 181
Event typesLectures/Seminars
Event sponsorsMolecular Engineering and Sciences

Molecular Engineering and Sciences Seminar Series
Abstract: Hybrid perovskite semiconductor lasers

Hybrid perovskite semiconductors are best known for their rapid ascent in the world of photovoltaics; however, their tunable bandgap and attractive gain characteristics also motivate their application in light emitting diodes and lasers. In particular, perovskites have renewed hope for achieving the long-standing goal of a non-epitaxial, solution-processable laser diode, which could impact areas ranging from silicon photonic integration to point-of-care medical diagnostics. This talk will focus on recent developments toward this goal, including pulsed and continuous-wave optically-pumped lasing, perovskite light emitting diodes operating at ~kA/cm2 current density, and an understanding of how such intense electrical excitation affects the lasing threshold. The results indicate that there is no fundamental barrier to electrically-pumped lasing and highlight remaining technical hurdles that must be overcome to make perovskite laser diodes a reality.
This weekly seminar brings together students, faculty and invited guests from various disciplines across campus to explore current trends in molecular engineering and nanotechnology. It is a forum for active interdisciplinary discussions. These talks are open to the public and attract a diverse audience of students and faculty.…
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