Toward Electrically-Pumped Lasing in Organic-Inorganic Hybrid Perovskite Semiconductors
Abstract
After nearly twenty years of intense research, electrically-pumped lasing remains an elusive grand challenge for the organic electronics community and would mark a technological advance with application potential rivaling that of organic light emitting diodes. Recently, hybrid organic-inorganic perovskites have emerged as efficient light emitters with attractive gain characteristics and high mobilities, renewing hope for the realization of a solution-processed laser diode technology with broad wavelength tunability. The goal of the proposed program is to establish the scientific foundation needed to realize a perovskite laser diode, with basic research effort directed along four primary thrusts:1. Understand the origin of perovskite lasing death under optical pumping and develop a materials design strategy to achieve continuous lasing at room temperature,2. Explore the nature of electrical transport in perovskite semiconductors under high-level injection (current density > 1 kA/cm2) and understand the factors that drive quantum efficiency roll-off in perovskite light emitting diodes at high brightness,3. Develop new synthesis and processing approaches to electronically dope perovskite semiconductor films and identify low optical loss, high conductivity charge transport layers that maintain perovskite carrier confinement under high level injection,4. Integrate these developments in a device architecture to demonstrate electrically-pumped gain and ultimately lasing from a perovskite semiconductor under electrical excitation.The collaboration between the two PIs provides the interdisciplinary expertise in laser physics, electrical transport, perovskite materials synthesis, processing, and characterization needed to carry out the proposed work and compelling preliminary results back its feasibility.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- May 30, 2018
- Source ID
- FA95501810037
Entities
People
- Noel C Giebink
Organizations
- Air Force Office of Scientific Research
- Pennsylvania State University
- United States Air Force