Results 11 to 20 of about 2,730 (172)

Initial Accretion in Hamelin Pool Microbialites: The Role of Entophysalis in Precipitation of Microbial Micrite

open access: yesGeosciences, 2022
One of the largest assemblages of living marine microbialites, with shapes and sizes analogous to ancient structures, is found along the margins of Hamelin Pool, Shark Bay, Western Australia.
Brooke E. Vitek   +4 more
doaj   +1 more source

Extended Tauc–Lorentz model (XTL) with log-normal distributed bandgap energies for optical permittivity in polycrystalline semiconductors

open access: yesAIP Advances, 2022
An extended Tauc–Lorentz model is proposed to incorporate the bandgap variation in different grains in the polycrystalline semiconductors. The probability of a certain bandgap in the Tauc–Lorentz model is assumed to follow a log-normal distribution ...
Chencheng Xu   +2 more
doaj   +1 more source

In situ spectroscopic ellipsometry as a pathway toward achieving VO2 stoichiometry for amorphous vanadium oxide with magnetron sputtering

open access: yesAIP Advances, 2021
As a special class of materials, transition metal oxides exhibit in their crystalline phase a variety of interesting properties, such as metal–insulator transition, ferroelectricity, magnetism, superconductivity, and so forth.
C. Xu   +4 more
doaj   +1 more source

The microbial carbonate factory of Hamelin Pool, Shark Bay, Western Australia

open access: yesScientific Reports, 2022
Microbialites and peloids are commonly associated throughout the geologic record. Proterozoic carbonate megafacies are composed predominantly of micritic and peloidal limestones often interbedded with stromatolitic textures.
Erica P. Suosaari   +7 more
doaj   +1 more source

Impact of the contacting scheme on I-V measurements of metallization-free silicon heterojunction solar cells

open access: yesEPJ Photovoltaics, 2023
I‑V measurements are sensitive to the number and positioning of current and voltage sensing contacts. For busbarless solar cells, measurement setups have been developed using current collection wires and separate voltage sense contacts.
Brinkmann Malte   +9 more
doaj   +1 more source

Kobiece narracje kryzysu. Doświadczenie żałoby w „Sorge” Aleksandry Zielińskiej

open access: yesJednak Książki, 2022
This article concerns Aleksandra Zielińska’s novel Sorge. The author focused on relationships beetwen women – mothers, daughters and sisters in perspective of women’s mourning and also uses cathegory of trauma, abnormal grief and unresolved grief.
Joanna Szewczyk
doaj   +1 more source

Kinetics of the permanent deactivation of the boron-oxygen complex in crystalline silicon as a function of illumination intensity

open access: yesAIP Advances, 2017
Based on contactless carrier lifetime measurements performed on p-type boron-doped Czochralski-grown silicon (Cz-Si) wafers, we examine the rate constant Rde of the permanent deactivation process of the boron-oxygen-related defect center as a function of
Verena Steckenreiter   +2 more
doaj   +1 more source

Composition and electronic structure of $${\rm SiO}_{\rm x}$$ SiO x / $${\rm TiO}_{\rm y}$$ TiO y /Al passivating carrier selective contacts on n-type silicon solar cells

open access: yesScientific Reports, 2023
Carrier-selective and passivating SiO $$_{\rm x}$$ x /TiO $$_{\rm y}$$ y heterocontacts are an attractive alternative to conventional contacts due to their high efficiency potentials combined with relatively simple processing schemes.
Christoph Flathmann   +4 more
doaj   +1 more source

Lifetime degradation and regeneration in multicrystalline silicon under illumination at elevated temperature

open access: yesAIP Advances, 2016
We examine the carrier lifetime evolution of block-cast multicrystalline silicon (mc-Si) wafers under illumination (100 mW/cm2) at elevated temperature (75°C).
Dennis Bredemeier   +3 more
doaj   +1 more source

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