Results 111 to 120 of about 523,434 (254)

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

Multichip on Aluminum Metal Plate Technology for High Power LED Packaging

Journal of Measurement Science and Instrumentation, 2010
Multichip on Aluminum Metal Plate（MOAMP）technology with simple structure and low thermal resistance is developed for effective heat removal of Light Emitting Diode（LED）p-n junction and LED lighting module to have high reliability.The thermal resistance ...
Choong-mo NAM, Mi-hee JI
doaj  

Organic light-emitting diode technology: current trends and future growth [PDF]

The paper deals with recent advancements, device structures, methodologies for light extraction, and breakthroughs in flexible Organic Light-Emitting Diodes (O LEDs).
Afanasiev, А. А., Gerasimchuk, S. N.
core  

Phase Engineering of Atomically Precise Nanoclusters (APNCs) of Gold and Beyond

Advanced Materials, EarlyView.
Engineering the structural phase of materials is of paramount importance for both fundamental research and practical applications. In this Review, we summarize the recent progress in controlling the phases of atomically precise nanoclusters (APNCs) of gold, silver and copper, as well as bimetallic systems. The phase‐enabled material properties of APNCs
Yitong Wang, Avirup Sardar, Weijie Ji, Zhongyu Liu, Rongchao Jin   +4 more
wiley   +1 more source

การศึกษาและวิเคราะห์คุณลักษณะทางแสงของหลอดไดโอดเปล่งแสงในระบบทางหลวง (STUDY AND ANALYSIS LUMINESCENCE CHARACTERISTICS OF LIGHT-EMITTING DIODE FOR THE HIGHWAY) [PDF]

, 2015
งานวิจัยฉบับนี้นำเสนอการศึกษาและวิเคราะห์การจำลองระบบแสงสว่างเพื่อเปรียบเทียบคุณภาพแสงสว่างของโคมไฟชนิดหลอดโซเดียมความดันไอสูง (HPS) 250 วัตต์ กับ โคมไฟชนิดหลอดไดโอดเปล่งแสง (LED) 120 วัตต์ ในกรณีรูปแบบของถนนมีเกาะกลางและถนนไม่มีเกาะกลาง และทำการปรับปร ...
อยู่มาก, สัณฐิติ, เง่าพิทักษ์กุล, อรรถพล   +1 more
core  

Resonant Domain Wall Dynamics in a Three‐Dimensional Magnetic Nano Double Helix

Advanced Materials, EarlyView.
3D magnetic nanostructures promise exciting possibilities for magnetization dynamics. However, experimental realizations remain scarce. In nanoprinted cobalt double helices, time‐resolved X‐ray microscopy reveals harmonic domain wall dynamics. Simulations identify the mode and additional higher‐frequency resonances, revealing a rich dynamic landscape ...
Pamela Morales‐Fernández, Iason Konstantinos‐Douveas, Claas Abert, Elina Zhakina, Sandra Ruiz‐Gómez, Claudia Fernández‐González, Luke Alexander Turnbull, Sebastian Wintz, Markus König, Simone Finizio, Markus Weigand, Naëmi Leo, Dieter Suess, Aurelio Hierro‐Rodríguez, Amalio Fernández‐Pacheco, Claire Donnelly   +15 more
wiley   +1 more source

Stable White Light Electroluminescence from Highly Flexible Polymer/ZnO Nanorods Hybrid Heterojunction Grown at 50°C

Nanoscale Research Letters, 2010
Stable intrinsic white light–emitting diodes were fabricated from c-axially oriented ZnO nanorods (NRs) grown at 50°C via the chemical bath deposition on top of a multi-layered poly(9,9-dioctylfluorene-co–N-(4-butylpheneylamine ...
Zainelabdin A, Zaman S, Amin G, Nur O, Willander M   +4 more
doaj   +1 more source

Characterization of Nepali solid-state lamps [PDF]

, 2009
Solid-state lighting technology based on injection electroluminescence devices, light-emitting diodes (LEDs), already found numerous applications in traffic lights, automotive signage, full-colour video displays, liquid crystal display backlighting ...
Chhetri, B.B., Žukauskas, A., Vitta, P., Karaliūnas, M., Zahnd, A., Bista, D., Updhyaya, M.R.   +6 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

Wafer-Level Light Emitting Diode (WL-LED) Chip Simplified Package for Very-High Power Solid-State Lighting (SSL) Source

, 2016
A simplified packaging process was successfully developed for a wafer-level light emitting diode (WL-LED) chip aiming at very-high power solid-state lighting (SSL) applications.
Cai, Y(蔡勇), Xu, JW, Zhang, YB, Qi, YD, Lu, GJ, Zhang, BS(张宝顺), Zhao, DS, Huang, HJ, Ding, MD, Miao, ZL   +9 more
core   +1 more source