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Nathan Z. Koocher
Researcher at Northwestern University
Publications - 25
Citations - 1104
Nathan Z. Koocher is an academic researcher from Northwestern University. The author has contributed to research in topics: Topological insulator & Magnetism. The author has an hindex of 10, co-authored 20 publications receiving 860 citations. Previous affiliations of Nathan Z. Koocher include University of Pennsylvania.
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Journal ArticleDOI
Ferroelectric Domain Wall Induced Band Gap Reduction and Charge Separation in Organometal Halide Perovskites
TL;DR: It is found that organometal halide perovskites can form both charged and uncharged domain walls due to the flexible orientational order of the organic molecules, and charged domain walls can serve as segregated channels for the motions of charge carriers.
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First-Principles Calculation of the Bulk Photovoltaic Effect in CH3NH3PbI3 and CH3NH3PbI3–xClx
TL;DR: It is found that hybrid halide perovskites give approximately three times larger shift current PV response to near-IR and visible light than the prototypical ferroelectric photovoltaic BiFeO₃.
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Pb 2 BO 3 I: A Borate Iodide with the Largest Second-Harmonic Generation (SHG) Response in the KBe 2 BO 3 F 2 (KBBF) Family of Nonlinear Optical (NLO) Materials
TL;DR: This work reports a new borate iodide, Pb2 BO3 I, synthesized by a straightforward hydrothermal method and shows that KBBF-related compounds can be synthesized incorporating iodide and exhibit superior NLO responses.
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Beryllium-Free β-Rb 2 Al 2 B 2 O 7 as a Possible Deep-Ultraviolet Nonlinear Optical Material Replacement for KBe 2 BO 3 F 2 .
TL;DR: The discovery of β-RABO shows that through careful synthesis and characterization, replacement of KBe2 BO3 F2 (KBBF) by a Be-free DUV NLO material is possible.
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Polarization Dependence of Water Adsorption to CH3NH3PbI3 (001) Surfaces.
TL;DR: It is demonstrated that, depending on methylammonium orientation, the water molecule can infiltrate into the hollow site of the surface and get trapped, and calculations with an implicit solvation model indicate that a higher water concentration may facilitate degradation through increased lattice distortion.