Jared Crochet
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Electronic properties of bulk 3D, 2D Ruddlesden-Popper phases and colloidal quantum dots of halide perovskite semiconductors: recent results(Keynote Speaker) Open
In the past five years, solution-processed organometallic perovskite based solar cells have emerged as a promising thin-film photovoltaic technology. Presently, the intended optoelectronic applications of this class of materials are in the…
View article: Cesium-Coated Halide Perovskites as a Photocathode Material: Modeling Insights
Cesium-Coated Halide Perovskites as a Photocathode Material: Modeling Insights Open
Photocathodes emit electrons when illuminated, a process utilized across many technologies. Cutting-edge applications require a set of operating conditions that are not met with current photocathode materials. Meanwhile, halide perovskites…
Halide Perovskite High-<i>k</i> Field Effect Transistors with Dynamically Reconfigurable Ambipolarity Open
Despite the remarkable optoelectronic properties of halide perovskites, achieving reproducible field effect transistor (FET) action in polycrystalline films at room temperature has been challenging and represents a fundamental bottleneck f…
Cation Alloying Delocalizes Polarons in Lead Halide Perovskites Open
Recently, mixed-cation perovskites have promised enhanced performances concerning stability and efficiency in optoelectronic devices. Here, we report a systematic study on the effects of cation alloying on polaronic properties in cation-al…
Estimation of full‐field, full‐order experimental modal model of cable vibration from digital video measurements with physics‐guided unsupervised machine learning and computer vision Open
Cables are critical components for a variety of structures such as stay cables and suspenders of cable-stayed bridges and suspension bridges. When in operational service, they are vulnerable to cumulative fatigue damage induced by dynamic …
Geometry Distortion and Small Polaron Binding Energy Changes with Ionic Substitution in Halide Perovskites Open
Halide perovskites have demonstrated remarkable performance in optoelectronic applications. Despite extraordinary progress, questions remain about device stability. We report an in-depth computational study of small polaron formation, elec…
Stable Light‐Emitting Diodes Using Phase‐Pure Ruddlesden–Popper Layered Perovskites Open
State‐of‐the‐art light‐emitting diodes (LEDs) are made from high‐purity alloys of III–V semiconductors, but high fabrication cost has limited their widespread use for large area solid‐state lighting. Here, efficient and stable LEDs process…
View article: Critical Role of Interface and Crystallinity on the Performance and Photostability of Perovskite Solar Cell on Nickel Oxide
Critical Role of Interface and Crystallinity on the Performance and Photostability of Perovskite Solar Cell on Nickel Oxide Open
Hybrid perovskites are on a trajectory toward realizing the most efficient single‐junction, solution‐processed photovoltaic devices. However, a critical issue is the limited understanding of the correlation between the degree of crystallin…
Unusual thickness dependence of exciton characteristics in 2D perovskite quantum wells Open
Understanding the nature and energy distribution of optical resonances is of central importance in low-dimensional materials$^{1-4}$ and its knowledge is critical for designing efficient optoelectronic devices. Ruddlesden-Popper halide per…
Optoelectronic properties of 2D Ruddlesden-Popper halide perovskite semiconductors Open
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View article: Extremely efficient internal exciton dissociation through edge states in layered 2D perovskites
Extremely efficient internal exciton dissociation through edge states in layered 2D perovskites Open
How perovskites have the edge Two-dimensional Ruddlesden-Popper perovskites form quantum wells by sandwiching inorganic-organic perovskite layers used in photovoltaic devices between organic layers. Blancon et al. show that if the perovski…
Polaron Stabilization by Cooperative Lattice Distortion and Cation Rotations in Hybrid Perovskite Materials Open
Solution-processed organometallic perovskites have rapidly developed into a top candidate for the active layer of photovoltaic devices. Despite the remarkable progress associated with perovskite materials, many questions about the fundamen…
The Effects of Electronic Impurities and Electron–Hole Recombination Dynamics on Large‐Grain Organic–Inorganic Perovskite Photovoltaic Efficiencies Open
Hybrid organic‐inorganic perovskites have attracted considerable attention after promising developments in energy harvesting and other optoelectronic applications. However, further optimization will require a deeper understanding of the in…
Ubiquity of Exciton Localization in Cryogenic Carbon Nanotubes Open
We present photoluminescence studies of individual semiconducting single-wall carbon nanotubes at room and cryogenic temperatures. From the analysis of spatial and spectral features of nanotube photoluminescence, we identify characteristic…
Light-activated photocurrent degradation and self-healing in perovskite solar cells Open
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