Slow thermal equilibration in methylammonium lead iodide revealed by transient mid-infrared spectroscopy

Autor: Peijun Guo, Jue Gong, Sridhar Sadasivam, Yi Xia, Tze-Bin Song, Benjamin T. Diroll, Constantinos C. Stoumpos, John B. Ketterson, Mercouri G. Kanatzidis, Maria K. Y. Chan, Pierre Darancet, Tao Xu, Richard D. Schaller

Publikováno v: Nature Communications, Vol 9, Iss 1, Pp 1-9 (2018)

Hybrid organic-inorganic perovskites are emerging materials for efficient photovoltaics; however understanding how charge/heat dissipates inside the material remains a challenge. Here, the authors use a spectroscopic approach to observe unusually slo

Externí odkaz: https://doaj.org/article/3028aeee88954ca3bc73073cdfbc1338

Slow thermal equilibration in methylammonium lead iodide revealed by transient mid-infrared spectroscopy

Autor: Constantinos C. Stoumpos, John B Ketterson, Tao Xu, Jue Gong, Peijun Guo, Benjamin T. Diroll, Sridhar Sadasivam, Richard D. Schaller, Maria K. Y. Chan, Mercouri G. Kanatzidis, Pierre Darancet, Yi Xia, Tze-Bin Song

Publikováno v: Nature Communications, Vol 9, Iss 1, Pp 1-9 (2018)
Nature Communications
Guo, P; Gong, J; Sadasivam, S; Xia, Y; Song, TB; Diroll, BT; et al.(2018). Slow thermal equilibration in methylammonium lead iodide revealed by transient mid-infrared spectroscopy. Nature Communications, 9(1). doi: 10.1038/s41467-018-05015-9. Lawrence Berkeley National Laboratory: Retrieved from: http://www.escholarship.org/uc/item/6ks173tt
Nature communications, vol 9, iss 1

Hybrid organic–inorganic perovskites are emerging semiconductors for cheap and efficient photovoltaics and light-emitting devices. Different from conventional inorganic semiconductors, hybrid perovskites consist of coexisting organic and inorganic

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::54be2b796eb52823d76ce308c6d4fc98
http://link.springer.com/article/10.1038/s41467-018-05015-9

First-Principles Investigation of Borophene as a Monolayer Transparent Conductor

Autor: Lyudmyla Adamska, Sahar Sharifzadeh, Jonathan J. Foley, Sridhar Sadasivam, Pierre Darancet

Publikováno v: The Journal of Physical Chemistry C. 122:4037-4045

Two-dimensional boron is promising as a tunable monolayer metal for nano-optoelectronics. We study the optoelectronic properties of two likely allotropes of two-dimensional boron, β12 and δ6, using first-principles density functional theory and man

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::37d95a5b53811d8fc7f3a3c94a195c31
https://doi.org/10.1021/acs.jpcc.7b10197

Cross-plane coherent acoustic phonons in two-dimensional organic-inorganic hybrid perovskites

Autor: Pierre Darancet, Peijun Guo, Richard D. Schaller, Sridhar Sadasivam, John B Ketterson, Mercouri G. Kanatzidis, Lingling Mao, Constantinos C. Stoumpos

Publikováno v: Nature Communications
Nature Communications, Vol 9, Iss 1, Pp 1-9 (2018)

Two-dimensional Ruddlesden–Popper organic–inorganic hybrid layered perovskites (2D RPs) are solution-grown semiconductors with prospective applications in next-generation optoelectronics. The heat-carrying, low-energy acoustic phonons, which are

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2d6edb4aac580558badd933931b16c21
http://europepmc.org/articles/PMC5964251

Phonon-eigenspectrum-based formulation of the atomistic Green's function method

Autor: Timothy S. Fisher, Sridhar Sadasivam, Umesh V. Waghmare

Publikováno v: Physical Review B. 96

While the atomistic Green's function (AGF) method has the potential to compute spectrally resolved phonon transport across interfaces, most prior formulations of the AGF method provide only the total phonon transmission function that includes contrib

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3f7aa06455038c1b32a122983f8a7f84
https://doi.org/10.1103/physrevb.96.174302