Gap States in Methylammonium Lead Halides: The Link to Dimethylsulfoxide?
Sign Up to like & getrecommendations! Published in 2020 at "Advanced materials"
DOI: 10.1002/adma.202003482
Abstract: Understanding the origin and distribution of electronic gap states in metal halide perovskite (MHP) thin films is crucial to the further improvement of the efficiency and long-term stability of MHP-based optoelectronic devices. In this work,… read more here.
Keywords: gap; states methylammonium; methylammonium lead; gap states ... See more keywords
Identification of the Origin of Ultralow Dark Currents in Organic Photodiodes
Sign Up to like & getrecommendations! Published in 2022 at "Advanced Materials"
DOI: 10.1002/adma.202209598
Abstract: Organic bulk heterojunction photodiodes (OPDs) attract attention for sensing and imaging. Their detectivity is typically limited by a substantial reverse bias dark current density (Jd). Recently, using thermal admittance or spectral photocurrent measurements, Jd has… read more here.
Keywords: gap states; origin ultralow; ultralow dark; charge generation ... See more keywords
On the origin of in-gap states in homogeneously disordered ultrathin films. MoC case
Sign Up to like & getrecommendations! Published in 2018 at "Applied Surface Science"
DOI: 10.1016/j.apsusc.2018.06.228
Abstract: Abstract Many disordered superconducting films exhibit smeared tunneling spectra with evident in-gap states. We have found that the tunneling density of states in ultrathin MoC films is gapless and can be described by the Dynes… read more here.
Keywords: gap; origin gap; gap states; homogeneously disordered ... See more keywords
Spatially Dependent in-Gap States Induced by Andreev Tunneling through a Single Electronic State.
Sign Up to like & getrecommendations! Published in 2024 at "Nano letters"
DOI: 10.1021/acs.nanolett.4c01581
Abstract: By using low-temperature scanning tunneling microscopy and spectroscopy (STM/STS), we observe in-gap states induced by Andreev tunneling through a single impurity state in a low carrier density superconductor (NaAlSi). The energy-symmetric in-gap states appear when… read more here.
Keywords: andreev tunneling; gap states; gap; states induced ... See more keywords
Hund’s coupling mediated multi-channel quantum phase transition of a single magnetic impurity in Fe(Se, Te)
Sign Up to like & getrecommendations! Published in 2024 at "Nature Communications"
DOI: 10.1038/s41467-024-52847-9
Abstract: Understanding the interplay between individual magnetic impurities and superconductivity is crucial for bottom-up construction of novel phases of matter. Sub-gap bound states that are used in this endeavor are typically considered as independent entities that… read more here.
Keywords: sub gap; hund coupling; impurity; transition ... See more keywords
Spin asymmetry of O 2p –related states in SrTiO3(001)
Sign Up to like & getrecommendations! Published in 2024 at "Physica Scripta"
DOI: 10.1088/1402-4896/ad732c
Abstract: Atomically clean SrTiO3(001) is characterized by low energy electron diffraction, core level and valence band photoelectron spectroscopy, the latter also with spin resolution. Samples prepared by a sputtering-annealing procedure exhibited in-gap states in the valence… read more here.
Keywords: spin asymmetry; gap states; asymmetry related; srtio3 001 ... See more keywords
Formation of strong-coupling (bi)polarons and related in-gap states in lightly-doped cuprate superconductors
Sign Up to like & getrecommendations! Published in 2021 at "Modern Physics Letters B"
DOI: 10.1142/s0217984921501906
Abstract: The formation of large polarons and bipolarons and related in-gap states in lightly-doped cuprates is studied in the strong electron–phonon coupling regime. The ground-state energies, binding energies and binding radius of strong-coupling large (bi)polarons are… read more here.
Keywords: gap; lightly doped; related gap; large polarons ... See more keywords
Enhanced near-infrared absorption in Au-hyperdoped Si: interplay between mid-gap states and plasmon resonance.
Sign Up to like & getrecommendations! Published in 2024 at "Optics express"
DOI: 10.1364/oe.532127
Abstract: Detecting near-infrared (NIR) light with high efficiency is crucial for photodetectors that are applied in optical communication systems. Si hyperdoped with deep-level impurities provides a monolithic platform for infrared optoelectronics with room-temperature operation at telecommunication… read more here.
Keywords: mid gap; absorption; plasmon resonance; gap states ... See more keywords
In-gap states of an amorphous In–Ga–Zn–O thin film studied via high-sensitivity ultraviolet photoemission spectroscopy using low-energy photons
Sign Up to like & getrecommendations! Published in 2021 at "Applied Physics Express"
DOI: 10.35848/1882-0786/ac06ae
Abstract: Low-density electronic states in the energy gap of an amorphous In–Ga–Zn–O film control device performance. Herein, density of states (DOS) distribution from valence band to the in-gap states of 1014 cm−3 eV−1 level was determined… read more here.
Keywords: energy; high sensitivity; photoemission spectroscopy; gap states ... See more keywords
Generation of nonlinear polarization to emit terahertz waves in above gap states in GaSb/AlGaSb multiple quantum wells
Sign Up to like & getrecommendations! Published in 2023 at "Applied Physics Express"
DOI: 10.35848/1882-0786/acd676
Abstract: In this study, we report the generation of frequency-tunable even-order nonlinear polarization in the above gap states in strained multiple quantum wells. Using the strain field, the even-order polarization to emit terahertz waves is generated… read more here.
Keywords: polarization emit; gap states; multiple quantum; polarization ... See more keywords