Results 41 to 50 of about 45,121 (264)

Charge Generation and Recombination Pathways in All‐Polymer Bulk Heterojunction Solar Cells

Advanced Functional Materials, EarlyView.
Multimodal spectroscopy and device analysis reveal how field‐dependent charge generation, transport limitations, and non‐geminate recombination govern performance losses in all polymer solar cells. The results identify the key processes controlling charge extraction and recombination, providing insights for the design of more efficient all‐polymer ...
Shahidul Alam, Wejdan Althobaiti, Safakath Karuthedath, Christopher E. Petoukhoff, Amr Dahman, Khawla Alkhezaim, Oleksandr Matiash, José P. Jurado, Mariia Ferree, Ning Su, Jacob Blaskovits, Denis Andrienko, Vladimir Dyakonov, Andreas Sperlich, Vojtech Nádaždy, Tobin J. Marks, Antonio Facchetti, Frédéric Laquai   +17 more
wiley   +1 more source

Reconstructing Quantum Dot Surfaces via Dual‐Functional Ligand Pairing Enables Efficient Shortwave Infrared Optoelectronics

Advanced Functional Materials, EarlyView.
This work presents a ligand‐pairing strategy that reconstructs lead sulfide quantum dot surfaces for efficient short‐wave infrared optoelectronics. A low‐reactivity thiourea precursor combined with hydrobromic acid enables monodisperse and fully passivated quantum dots.
Dongeon Kim, Minjung Yang, Yunjin Lee, Gaeun Cho, Min‐Jae Si, Jaewoo Jeong, Seoryeon Jeong, Sol‐Hee Kim, Taeho Han, Seungin Jee, Byeong‐Chan Kim, Woong Kim, Seungmin Lee, Jun Hong Noh, Han Seul Kim, Yujin Jung, Se‐Woong Baek   +16 more
wiley   +1 more source

PENGUJIAN SENSOR CAHAYA PHOTOTRANSISTOR DAN PHOTODIODE PADA PEMANTAU DENYUT JANTUNG DENGAN METODE PHOTOPLETHYSMOGRAPH REFLEKSI

Simetris: Jurnal Teknik Mesin, Elektro dan Ilmu Komputer, 2019
Penelitian ini dilakukan karena banyaknya penyakit yang diakibatkan gangguan fungsi jantung dan pembuluh darah yang tidak terdeteksi secara dini. Pada makalah ini menyajikan pengujian dan pembuatan alat pemantau denyut jantung dengan sensor cahaya ...
Antonius Hendro Noviyanto
doaj   +1 more source

Nanodiamond Sensing in Dynamic Environments With Fast‐Tracking Through Four‐Point Positioning

Advanced Functional Materials, EarlyView.
A four‐point positioning tracking (4PPT) platform enables fast 3D feedback translational tracking of fluorescent nanodiamonds while simultaneously recording ODMR spectra. By integrating real‐time translational tracking with quantum sensing, mobile nanodiamonds are used for in‐situ nanothermometry, nanorheometry, and 6D translation–rotation tracking in ...
Guoli Zhu, Ming‐Zhong Ai, Zhi‐Yu Zhao, Weng‐Hang Leong, Shi‐Ning Chen, Xi Liu, Jing‐Wei Fan, Xi Feng, Ren‐Bao Liu, Yue Cui, Quan Li   +10 more
wiley   +1 more source

Tomographic Printing in a Chip: A Versatile Platform for Biomimetic 3D Organ‐on‐Chip

Advanced Healthcare Materials, EarlyView.
A novel light‐based bioprinting approach, TVAM‐in‐a‐chip, enables rapid, contactless fabrication of biomimetic 3D organ‐on‐chip devices directly within preassembled microfluidic platforms. This strategy supports diverse materials, including cell‐laden resins, and eliminates post‐assembly steps.
Riccardo Rizzo, Viola Sgarminato, Felix Wechsler, Christophe Moser   +3 more
wiley   +1 more source

Selective Photosensitive Structures Based On Au-Algan Schottky Barrier

Известия высших учебных заведений России: Радиоэлектроника, 2016
Created and studied selective photosensitive structures based on Au-AlGaN Schottky barrier for the ultraviolet range of the spectrum. The methods of spectrum management photosensitivity by the use of the wide windows and the effects of over-barrier ...
A. S. Evseenkov, I. A. Lamkin, I. I. Mikhailov, A. V. Solomonov, S. A. Tarasov   +4 more
doaj  

Nonlinearity Measurement of Si Transferring Photodetector in the Low Radiation Flux Range

Photonics, 2023
In order to establish a transferring chain from a photon flux of a single-photon source in quantum radiometry, the nonlinearity of the photodetector needs to be accurately measured.
Yue Li, Zhen Liu, Yinlin Yuan, Wenchao Zhai, Peng Zou, Xiaobing Zheng   +5 more
doaj   +1 more source

Wearable OLED‐Assisted Photodynamic Cancer Therapy Using Chlorin e6‐Loaded Pluronic Nanocapsules as Photosensitizers

Advanced Healthcare Materials, EarlyView.
A novel photodynamic therapeutic approach has been employed for anticancer therapy, utilizing chlorin e6‐loaded Pluronic nanocapsules and a wearable organic light‐emitting diode light source. This has shown significant in vivo antitumor efficacy with minimal off‐target toxicity. The innovative combination of a wearable light source and photosensitizers
Hyeryeon Oh, Seung Min Jeong, Cheol Hui Park, Panmo Son, Yeseo Lee, Heebeom Koo, Won Il Choi, Kyung Cheol Choi   +7 more
wiley   +1 more source

Light Flicker Frequencies in the HID lamps

Algerian Journal of Signals and Systems, 2017
In order to reduce the electric consumption for high intensity discharge lamps (HID), the use of high frequencies electronic ballasts represents both a solution and many advantages such as, the decrease in the congestion, low costs and weak losses ...
Lakhdar Amer, Messaoud Hamouda, Chellali Benachiba   +2 more
doaj   +1 more source

Construction of a Miniaturized Monosaccharide Detection System Based on Measuring Electric Current and Testing Its Performance Using a Bodipy Fluorescent Dye

Engineering Proceedings, 2023
In this study, a low-cost, miniaturized fluorescence-based measurement system for optical biosensors has been developed. A 3D-printed setup with a blue light-emitting diode (LED) and photodiode was used for electrical detection and monitoring of ...
Omar Kerbouche, Mustafa İlker Beyaz, Seda Demirel Topel   +2 more
doaj   +1 more source