Results 121 to 130 of about 26,661 (230)

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

Enhancing Charge Transport and Extraction in Ta3N5 Photoanodes Via Ti Doping and TiN Contact Layers

Small, EarlyView.
Ta3N5${\rm Ta}_3{\rm N}_{5}$ is a promising photoanode for solar water splitting but suffers from poor charge transport and interfacial losses. We combine Ti compensation doping with ultrathin TiN back‐contact interlayers to suppress bulk recombination, enhance carrier mobility and lifetime, and enable efficient carrier extraction, yielding ...
Laura I. Wagner, Dominik Moser, Dennis Friedrich, Frans Munnik, Olivier Henrotte, Emiliano Cortés, Roel van de Krol, Verena Streibel, Ian D. Sharp   +8 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

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

Automated Identification of Thermal Transitions in Conjugated Material Thin Films Using In Situ Optical Spectroscopy

Small Methods, EarlyView.
This study demonstrates the effectiveness of in situ UV−vis coupled with automated data analysis, namely, ATLAS, for fast and reliable identification of multiple thermal transition in conjugated polymer thin films. This ATLAS method will significantly accelerate the understanding of the phase behavior of D‐A polymers with important implications for ...
Doan Vu, Martyn Jevric, Alireza Samadani, Mats R. Andersson, Christopher R. McNeill, Brendan T. O'Connor, Harald Ade   +6 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

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

Harnessing the Orientation of Columnar Discotic Liquid Crystals for Narrowband Blue Emission with Enhanced Out‐Coupling Efficiency Toward Improvement of SP‐OLEDs Performance

Advanced Functional Materials, Volume 36, Issue 36, 4 May 2026.
Solution‐processed OLEDs containing discotic liquid‐crystalline MR‐TADF emitters are reported. Supramolecular self‐assembly induces homeotropic columnar alignment, enforcing preferential horizontal orientation of the emitter transition dipole moment in spin‐coated films, which leads to an enhancement in the device light outcoupling efficiency while ...
Joydip De, Abhishek Kumar Gupta, Džiugas Litvinas, Francisco Tenopala‐Carmona, Matthias Lehmann, Malte C. Gather, Eli Zysman‐Colman   +6 more
wiley   +1 more source

Voltage‐Gated Dedoping of n‐Doped Poly(benzodifurandione) as an Interfacial Protective Mechanism in Electrochromic Devices

Advanced Functional Materials, Volume 36, Issue 36, 4 May 2026.
Electrochromic polymer stability under overpotential is improved by inserting an ultrathin, transparent n‐doped poly(benzodifurandione) interlayer between indium tin oxide and a poly(3,4‐propylenedioxythiophene)‐based electrochromic polymer. The interlayer supports rapid switching at operating bias, then becomes resistive near +0.8 V to suppress excess
Priyanka Rout, Palak Mehra, Won‐June Lee, Liyan You, Jianguo Mei   +4 more
wiley   +1 more source

Study of Tunable Dielectric Permittivity of PBDB-T-2CL Polymer in Ternary Organic Blend Thin Films Using Spectroscopic Ellipsometry. [PDF]

Polymers (Basel), 2023
Hrostea L, Bulai GA, Tiron V, Leontie L.
europepmc   +1 more source