Results 91 to 100 of about 55,287 (317)

Atmosphere engineering of metal-free Te/C3N4 p-n heterojunction for nearly 100% photocatalytic converting CO2 to CO

Advanced Powder Materials
Carbon nitride (CN)-based heterojunction photocatalysts hold promise for efficient carbon dioxide (CO2) reduction. However, suboptimal production yields and limited selectivity in CO2 conversion pose significant barriers to achieving efficient CO2 ...
Huange Liao, Kai Huang, Weidong Hou, Huazhang Guo, Cheng Lian, Jiye Zhang, Zheng Liu, Liang Wang   +7 more
doaj   +1 more source

Laser‐Assisted Phase Engineering of 2D MoS2 for Efficient Solution‐Processed Electronics

Advanced Materials, EarlyView.
Here, local laser‐assisted phase transition from solution‐processed phase‐pure 1T′ to 2H MoS2 is shown to critically depend on the irradiation atmosphere. While processing in air leads to damaged insulating regions, inert conditions yield semiconducting 2H domains, enabling direct field‐effect transistor patterning with optimized lateral 1T′‐2H MoS2 ...
Anna Zhuravlova, Minjuan Li, Osamah Alharbi, Yeonsu Jeong, Bin Han, Lei Gao, Mischa Bonn, Mario Lanza, Sheng Yang, Antonio Gaetano Ricciardulli, Paolo Samorì   +10 more
wiley   +1 more source

Quantum Dots Mediated Heterojunction Coupling MoSe₂ Photoanode for Photoelectrochemical Water Splitting

Molecules
Graphene quantum dots (GQDs) possess the photosensitive absorption for photoelectrochemical hydrogen evolution owing to special band structures, whereas they usually confront with photo-corrosion or undesired charge recombination during ...
Lin Zhang, Jiana Sun, Mengmeng Zhao, Yuxuan Wei, Taigang Luo, Zhengping Zhao, Yibo Yan   +6 more
doaj   +1 more source

Self-Powered Broadband (UV-NIR) Photodetector Based on 3C-SiC/Si Heterojunction

, 2019
Self-powered photodetectors (PDs) are highly desirable for many applications, ranging from smart cities to optical communications. Herein, we report on a selfpowered broadband [UV to near-infrared (NIR)] PD based on a single-crystalline SiC (100)/Si (100)
Tanner, Philip, Foisal, Abu Riduan Md, Dao, Dzung Viet, Nguyen, Thanh Viet, Streed, Erik W., Lobino, Mirko, Dinh, Toan, Phan, Hoang-Phuong, Nguyen, Tuan-Khoa, Haylock, Ben   +9 more
core   +1 more source

Rethinking Charge Transport and Recombination in Donor‐Diluted Organic Solar Cells

Advanced Materials, EarlyView.
Organic solar cells with 1–45% PM6 content in Y12 were studied to link structure and charge dynamics to performance. The conductivity follows a 3D percolation model without a sharp threshold. Donor dilution preserves the photogeneration yield, but limits the fill factor due to transport resistance losses.
Chen Wang, Christopher Wöpke, Toni Seiler, Jared Faisst, Mathias List, Meike Kuhn, Bekcy Joseph, Alexander Ehm, Dietrich R. T. Zahn, Yana Vaynzof, Eva M. Herzig, Roderick C. I. Mackenzie, Uli Würfel, Maria Saladina, Carsten Deibel   +14 more
wiley   +1 more source

Heterojunction catalysts for urea oxidation reaction

Materials Futures
The electrocatalytic urea oxidation reaction (UOR) is a promising strategy for addressing both environmental remediation and energy conversion challenges.
Yashu Guo, Zhijie Chen, Yinghui Lin, Gaihong Wang, Haoran Duan, Bing-Jie Ni   +5 more
doaj   +1 more source

Leakage Current Mechanisms in SiGe HBTs Fabricated Using Selective and Nonselective Epitaxy

, 2001
SiGe heterojunction bipolar transistors (HTBs) have been fabricated using selective epitaxy for the Si collector, followed in the same growth step by nonselective epitaxy for the p+ SiGe base and n-Si emitter cap.
Ashburn, Peter, Lamb, Andrew C., Bonar, J.M., Cristiano, Fuccio, Bonar, J. M., Hemment, P. L. F., Schiz, J. F. W., Hemment, Peter L. F., Hall, Stephen, Schiz, J.F.W.   +9 more
core  

Large‐Scale Determination of Frontier Orbital Energies of Disordered Small‐Molecule Organic Semiconductors Using Exciplex Emission Spectra

Advanced Materials, EarlyView.
ABSTRACT Accurately knowing the frontier orbital energies of the structurally disordered small‐molecule organic semiconductors that are used in optoelectronic devices such as organic light‐emitting diodes is required to rationally improve their performance. Here, we show that these energies can be deduced with a large accuracy from the peak energies of
Christian B. McDonald, Hiroki Tomita, Giacomo Cotelli, Louka L. Brüll, Nanno G. de Rooij, Lucas R.L. Norg, Milo Clément, Reinder Coehoorn   +7 more
wiley   +1 more source

First-Principles Study on Direct Z-Scheme SnC/SnS₂ Heterostructures for Photocatalytic Water Splitting

Chemistry
Direct Z-scheme heterojunctions are known for their unique carrier mobility mechanism, which significantly improves photocatalytic water splitting efficiency.
Sisi Zhou, Yuliang Mao
doaj   +1 more source

HETEROJUNCTION LASERS

, 2023
The main parameters of a heterojunction laser diode, such as the emission frequency spectrum (optical modes), threshold current, output radiation power, and operating efficiency, are considered. A simplified formula for the radiation intensity of a heterostructure laser is obtained.
openaire   +2 more sources