Zobrazeno 1 - 10
of 67
pro vyhledávání: '"Haber, Jonah B."'
Autor:
Sagredo, Francisca, Gant, Stephen E., Ohad, Guy, Haber, Jonah B., Filip, Marina R., Kronik, Leeor, Neaton, Jeffrey B.
Halide double perovskites are a chemically-diverse and growing class of compound semiconductors that are promising for optoelectronic applications. However, the prediction of their fundamental gaps and optical properties with density functional theor
Externí odkaz:
http://arxiv.org/abs/2408.04115
Autor:
Coveney, Christopher J. N., Haber, Jonah B., Alvertis, Antonios M., Neaton, Jeffrey B., Filip, Marina R.
Understanding the processes governing the dissociation of excitons to free charge carriers in semiconductors and insulators is of central importance for photovoltaic applications. Dyson's $\mathcal{S}$-matrix formalism provides a framework for comput
Externí odkaz:
http://arxiv.org/abs/2405.13525
Autor:
Chan, Yang-hao, Naik, Mit H., Haber, Jonah B., Neaton, Jeffrey B., Louie, Steven G., Qiu, Diana Y., da Jornada, Felipe H.
Despite the weak, van-der-Waals interlayer coupling, photoinduced charge transfer vertically across atomically thin interfaces can occur within surprisingly fast, sub-50fs timescales. Early theoretical understanding of the charge transfer is based on
Externí odkaz:
http://arxiv.org/abs/2401.17822
Autor:
Alvertis, Antonios M., Haber, Jonah B., Li, Zhenglu, Coveney, Christopher J. N., Louie, Steven G., Filip, Marina R., Neaton, Jeffrey B.
The properties of excitons, or correlated electron-hole pairs, are of paramount importance to optoelectronic applications of materials. A central component of exciton physics is the electron-hole interaction, which is commonly treated as screened sol
Externí odkaz:
http://arxiv.org/abs/2312.03841
Autor:
Ohad, Guy, Gant, Stephen E., Wing, Dahvyd, Haber, Jonah B., Camarasa-Gómez, María, Sagredo, Francisca, Filip, Marina R., Neaton, Jeffrey B., Kronik, Leeor
Using both time-dependent density functional theory (TDDFT) and the ``single-shot" $GW$ plus Bethe-Salpeter equation ($GW$-BSE) approach, we compute optical band gaps and optical absorption spectra from first principles for eight common binary and te
Externí odkaz:
http://arxiv.org/abs/2309.02117
We introduce a maximally-localized Wannier function representation of Bloch excitons, two-particle correlated electron-hole excitations, in crystalline solids, where the excitons are maximally-localized with respect to an average electron-hole coordi
Externí odkaz:
http://arxiv.org/abs/2308.03012
Non-radiative exciton relaxation processes are critical for energy transduction efficiencies in optoelectronic materials, but how these processes are connected to the underlying crystal structure and its associated electron, exciton, and phonon band
Externí odkaz:
http://arxiv.org/abs/2305.04223
Autor:
Champagne, Aurelie, Haber, Jonah B., Pokawanvit, Supavit, Qiu, Diana Y., Biswas, Souvik, Atwater, Harry A., da Jornada, Felipe H., Neaton, Jeffrey B.
The intrinsic weak and highly non-local dielectric screening of two-dimensional materials is well known to lead to high sensitivity of their optoelectronic properties to environment. Less studied theoretically is the role of free carriers on those pr
Externí odkaz:
http://arxiv.org/abs/2303.12122
Autor:
Biswas, Souvik, Champagne, Aurélie, Haber, Jonah B., Pokawanvit, Supavit, Wong, Joeson, Akbari, Hamidreza, Krylyuk, Sergiy, Watanabe, Kenji, Taniguchi, Takashi, Davydov, Albert V., Balushi, Zakaria Y. Al, Qiu, Diana Y., da Jornada, Felipe H., Neaton, Jeffrey B., Atwater, Harry A.
Monolayer transition metal dichalcogenide (TMDC) semiconductors exhibit strong excitonic optical resonances which serve as a microscopic, non-invasive probe into their fundamental properties. Like the hydrogen atom, such excitons can exhibit an entir
Externí odkaz:
http://arxiv.org/abs/2302.03720
Autor:
Alvertis, Antonios M., Haber, Jonah B., Engel, Edgar A., Sharifzadeh, Sahar, Neaton, Jeffrey B.
Publikováno v:
Phys. Rev. Lett. 130, 086401 (2023)
The spatial extent of excitons in molecular systems underpins their photophysics and utility for optoelectronic applications. Phonons are reported to lead to both exciton localization and delocalization. However, a microscopic understanding of phonon
Externí odkaz:
http://arxiv.org/abs/2301.11944