Results 101 to 110 of about 370,378 (203)

Deterministic reflection contrast ellipsometry for thick multilayer two-dimensional heterostructures

Nanophotonics
Optical spectroscopy is a powerful tool for characterizing the properties of two-dimensional (2D) heterostructures. However, extracting the permittivity information of each 2D layer in optically thick heterostructures is challenging because of ...
Lee Kang Ryeol, Youn JinGyu, Yoo SeokJae
doaj   +1 more source

Indium‐Free Silicon Heterojunction Solar Cells: Achieving High Conductivity With Magnetron‐Sputtered SnO2

Progress in Photovoltaics: Research and Applications, EarlyView.
Amorphous SnO2 films with low resistivity (~1.2 × 10−3 Ωcm) were realized by low‐temperature magnetron sputtering through control of O2 flow ratio, substrate temperature, and H incorporation. Si heterojunction solar cells incorporating these films achieved a conversion efficiency of 21.1%, approaching that of cells based on MS‐ITO and RPD‐SnO2 ...
Takashi Koida, Takuya Matsui, Hitoshi Sai   +2 more
wiley   +1 more source

Fast Detection of Uric Acid in Urine for Early Diagnosis Using THz Polarized Waves

Sensors
Towards new and improved techniques in liquid biopsy for the diagnosis of diseases, this study reports experimental evidence of a rapid and reliable method based on terahertz (THz) time-domain spectroscopic ellipsometry (TDSE) for the early diagnosis of ...
Zahra Mazaheri, Giorgia Federico, Can Koral, Gian Paolo Papari, Lakshmi Ullatil, Paolo Russo, Antonello Andreone   +6 more
doaj   +1 more source

Mixed TiO2–SiO2 thin coatings for selective adsorption and sunlight‐powered photodegradation of cationic pollutants

Responsive Materials, EarlyView.
Environmental pollution and water scarcity demand innovative purification methods. This study presents a sol‐gel approach to fabricate mixed silica–titania thin films joining photocatalytic activity with selective sorption capability. The films exhibit higher surface area, enhanced degradation of cationic and improved performance over bare titania ...
Andrea Lanfranchi, Simone Bertucci, Margherita Peragallo, Fabiano Martorelli, Giovanni Manfredi, Davide Avanzino, Roberto Spotorno, Stefano Alberti, Davide Comoretto, Francesco Di Stasio, Maddalena Patrini, Federico Locardi, Mirko Prato, Paola Lova   +13 more
wiley   +1 more source

Advancing perovskite solar cells: Optical characterization and performance enhancement via spectroscopic ellipsometry

Journal of Science: Advanced Materials and Devices
Optimizing light collection is essential to enhance power conversion efficiency in perovskite solar cells (PSCs). Understanding the optical characteristics of perovskite materials is key to designing improved structures and enhancing device performance ...
Eri Widianto, Bhisma Mahendra, Muhammad Riswan, Frendy Jaya Kusuma, Kardiman, Eka Nurfani, Indra Pardede, Natalita Maulani Nursam, Kuwat Triyana, Iman Santoso   +9 more
doaj   +1 more source

Variable Temperature Spectroscopic Ellipsometry as a Tool for Insight into the Optical Order in the P3HT:PC70BM and PC70BM Layers. [PDF]

Polymers (Basel), 2023
Hajduk B, Jarka P, Bednarski H, Tański T.   +3 more
europepmc   +1 more source

Spectroscopic Analysis of Hydration Structures in PEG‐ and PMPC‐Containing Hydrogels by Pressure‐Controlled ATR‐IR Combined With Multivariate Curve Resolution

Surface and Interface Analysis, EarlyView.
ABSTRACT Hydration structures govern the properties and functions of hydrogels, yet selectively measuring hydration water in the presence of abundant bulk water remains analytically challenging. Here we applied pressure‐controlled attenuated total reflection infrared spectroscopy (ATR‐IR) combined with multivariate curve resolution (MCR) analysis, a ...
Shoichi Maeda, Shunta Chikami, Glenn Villena Latag, Ryuya Gotanda, Masaki Kamiya, Koji Miyamoto, Chia‐Ying Chiang, Tomohiro Hayashi   +7 more
wiley   +1 more source

An X‑Shaped Chiral Non‑Fullerene n‐Type Semiconductor: Application in Perovskite Solar Cells and Chirality‑Induced Spin Selectivity

Angewandte Chemie, Volume 138, Issue 43, 19 October 2026.
A highly electron‑accepting derivative of cyclobisbiphenylenecarbonyl (CBBC‐TIC) is reported. CBBC‐TIC functions as an electron‐transport layer for perovskite solar cells, achieving a power conversion efficiency of 20.6%. Furthermore, the enantiomers of CBBC‐TIC exhibited spin‐selective electron transport with high enantiospecific magnetic conductance ...
Yuki Sakamoto, Koki Otsuka, Kuraudo Ishihara, Shuang Li, Ai Shimazaki, Megumi Haramatsu, Junichiro Hirano, Juntaro Nogami, Hiroshi Shinokubo, Hiroki Uratani, Hironori Kaji, Fumitaka Ishiwari, Akinori Saeki, Tomoya Nakamura, Atsushi Wakamiya, Norihito Fukui   +15 more
wiley   +2 more sources

Monitoring of the Initial Stages of Diamond Growth on Aluminum Nitride Using In Situ Spectroscopic Ellipsometry. [PDF]

ACS Omega, 2023
Leigh W, Mandal S, Cuenca JA, Wallis D, Hinz AM, Oliver RA, Thomas ELH, Williams O.   +7 more
europepmc   +1 more source

Visualizing Gradual Aging of Lateral Heterostructured MoS2‐WS2 Under Vacuum Conditions by Hyperspectral Phase Microscopy

Small, EarlyView.
This study visualizes the long‐term aging of lateral MoS2‐WS2 heterostructures stored under low‐vacuum condition using hyperspectral phase microscopy (HPM). While conventional techniques show limited sensitivity to ultrathin and amorphous oxidation products, HPM successfully reveals morphological and optical changes during aging. Optical modeling using
Yoojoong Han, Ju Young Kim, Humberto R. Gutiérrez, Florence A. Nugera, Hyungbin Son, Un Jeong Kim   +5 more
wiley   +1 more source