5 papers
Triplet-sensitization by lead halide perovskite thin films for near-infrared-to-visible upconversion
Lea Nienhaus, Juan-Pablo Correa-Baena, Sarah Wieghold +9
Lead halide-based perovskite thin films have attracted great attention due to the explosive increase in perovskite solar cell efficiencies. The same optoelectronic properties that…
Trap states impact photon upconversion in rubrene sensitized by lead halide perovskite thin films
Sarah Wieghold, Alexander S. Bieber, Zachary A. VanOrman +2
The same optical and electronic properties that make perovskite thin films ideal absorber materials in photovoltaic applications are also beneficial in photon upconversion devices.…
Homogenization of Halide Distribution and Carrier Dynamics in Alloyed Organic-Inorganic Perovskites
Juan-Pablo Correa-Baena, Yanqi Luo, Thomas M. Brenner +15
Perovskite solar cells have shown remarkable efficiencies beyond 22%, through organic and inorganic cation alloying. However, the role of alkali-metal cations is not well-understoo…
Morphology of passivating organic ligands around a nanocrystal
Nadav Geva, James J. Shepherd, Lea Nienhaus +2
Semiconductor nanocrystals are a promising class of materials for a variety of novel optoelectronic devices, since many of their properties, such as the electronic gap and conducti…
Role of Pressure in the Growth of Hexagonal Boron Nitride Thin Films from Ammonia-Borane
Justin C. Koepke, Joshua D. Wood, Enrique A. Carrion +14
We analyze the optical, chemical, and electrical properties of chemical vapor deposition (CVD) grown hexagonal boron nitride (h-BN) using the precursor ammonia-borane ()…