346 citations · 959 across the 11 of their papers we have counts for
11 papers
Coherent Erbium Spin Defects in Colloidal Nanocrystal Hosts
Joeson Wong, Mykyta Onizhuk, Jonah Nagura +13
We demonstrate nearly a microsecond of spin coherence in Er3+ ions doped in cerium dioxide nanocrystal hosts, despite a large gyromagnetic ratio and nanometric proximity of the spi…
Detecting, distinguishing, and spatiotemporally tracking photogenerated charge and heat at the nanoscale
Hannah L. Weaver, Cora M. Went, Joeson Wong +4
Since dissipative processes are ubiquitous in semiconductors, characterizing how electronic and thermal energy transduce and transport at the nanoscale is vital for understanding a…
Rydberg Excitons and Trions in Monolayer MoTe
Souvik Biswas, Aurélie Champagne, Jonah B. Haber +12
Monolayer transition metal dichalcogenide (TMDC) semiconductors exhibit strong excitonic optical resonances which serve as a microscopic, non-invasive probe into their fundamental…
Lifetime Limited and Tunable Quantum Light Emission in h-BN via Electric Field Modulation
Hamidreza Akbari, Souvik Biswas, Pankaj K. Jha +3
Color centered-based single photon emitters in hexagonal boron nitride (h-BN) have shown promising photophysical properties as sources for quantum light emission. Despite significa…
Impact of Semiconductor Band Tails and Band Filling on Photovoltaic Efficiency Limits
Joeson Wong, Stefan T. Omelchenko, Harry A. Atwater
The theoretical maximum efficiency of a solar cell is typically characterized by a detailed balance of optical absorption and emission for a semiconductor in the limit of unity rad…
Spatiotemporal Imaging of Thickness-Induced Band Bending Junctions
Joeson Wong, Artur R. Davoyan, Bolin Liao +8
Van der Waals materials exhibit naturally passivated surfaces and can form versatile heterostructures, enabling observation of carrier transport mechanisms not seen in three-dimens…
A new metal transfer process for van der Waals contacts to vertical Schottky-junction transition metal dichalcogenide photovoltaics
Cora M. Went, Joeson Wong, Phillip R. Jahelka +3
Two-dimensional transition metal dichalcogenides are promising candidates for ultrathin optoelectronic devices due to their high absorption coefficients and intrinsically passivate…
Van der Waals Materials for Atomically-Thin Photovoltaics: Promise and Outlook
Deep Jariwala, Artur R. Davoyan, Joeson Wong +1
Two-dimensional (2D) semiconductors provide a unique opportunity for optoelectronics due to their layered atomic structure, electronic and optical properties. To date, a majority o…
Electrical Control of Linear Dichroism in Black Phosphorus from the Visible to Mid-Infrared
Michelle C. Sherrott, William S. Whitney, Deep Jariwala +4
The incorporation of electrically tunable materials into photonic structures such as waveguides and metasurfaces enables dynamic control of light propagation by an applied potentia…
High Photovoltaic Quantum Efficiency in Ultrathin van der Waals Heterostructures
Joeson Wong, Deep Jariwala, Giulia Tagliabue +4
We report experimental measurements for ultrathin (< 15 nm) van der Waals heterostructures exhibiting external quantum efficiencies exceeding 50%, and show that these structures ca…
Near Unity Absorption in Van der Waals Semiconductors for Ultrathin Optoelectronics
Deep Jariwala, Artur R. Davoyan, Giulia Tagliabue +3
We demonstrate near unity, broadband absorbing optoelectronic devices using sub-15 nm thick transition metal dichalcogenides (TMDCs) of molybdenum and tungsten as van der Waals sem…