Results 101 to 110 of about 344,780 (314)

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

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

Techno-economic potential of plasma-based calcium looping for CO2 capture and utilization in power-to-liquid plants

Journal of CO2 Utilization
Sector coupling plays a crucial role in reducing CO2 emissions. The usage of renewable energies in Power-to-Liquid (PtL) processes is one option to link the energy, transport and chemical sectors.
Samuel Jaro Kaufmann, Frederic Bender, Paul Rößner, Stephan Renninger, Jan Stein, Valentin Seithümmer, Haripriya Chinnaraj, Kai Peter Birke   +7 more
doaj   +1 more source

Phase Engineering of Nanomaterials (PEN): Evolution, Current Challenges, and Future Opportunities

Advanced Materials, EarlyView.
This review summarizes the synthesis, phase transition, advanced characterization spanning ex situ to in situ and operando techniques, and diverse applications of phase engineering of nanomaterials (PEN). It further outlines key challenges and future opportunities, such as phase stability, architecture control, and artificial intelligence (AI)‐driven ...
Ye Chen, Zhanxi Fan, Jingjie Ge, Qiyuan He, Zhuangchai Lai, Jiawei Liu, Chaoliang Tan, Hua Zhang   +7 more
wiley   +1 more source

Lead Halide Perovskite Photoelectrocatalysis

Advanced Materials, EarlyView.
Lead halide perovskite semiconductors have emerged as highly promising materials for solar fuel and chemical synthesis. This perspective discusses advances made in the rational photoelectrode design to improve solar‐to‐chemical conversion, product scope, and scalability.
Virgil Andrei
wiley   +1 more source

CO2 and CH4 conversion in a rotating DC glow to arc plasma with big discharge gap

Journal of CO2 Utilization
In this work, we investigated large-volume, non-thermal discharges in CO₂/CH₄ mixtures with the aim of enabling energy-efficient plasma-based conversion. Building on the fundamental U–I characteristics of gas discharges, we showed how discharge extension
Samuel Jaro Kaufmann, Joe Quade, Johanna Buschmann, Haripriya Chinnaraj, Kai Peter Birke, Paul Rößner   +5 more
doaj   +1 more source

Selective Growth of Bulk‐Like Perovskite in Plasmonic Nanoholes for Enhanced Two‐Photon‐Excited Emission

Advanced Materials, EarlyView.
Vacuum‐assisted capillary infiltration delivers perovskite precursors deep into gold nanohole plasmonic hotspots, enabling uniform in situ crystallization of bulk‐like CsPbBr3 within confined cavities. Verified by peel‐off and structural analyses, the hybrid platform shows simulated |E/E₀| ≈2.80 at 800 nm and ∼40‐fold two‐photon absorption‐enhanced ...
Jung‐Jae Do, Bryan K. Chantigian, Daniel Upcraft, Wonwoo Lee, Ho‐Sung Shin, Nathan C. Lindquist, Jae Woong Jung, Bharat Jalan, Sang‐Hyun Oh   +8 more
wiley   +1 more source

Operation Limits of Integrated Photo‐Rechargeable Batteries

Advanced Materials, EarlyView.
This study elucidates the operational limitations of integrated photo‐rechargeable batteries. We demonstrate that the photo‐charging process is fundamentally restricted not only by material‐to‐material energy level alignment but also by transient capacitive charge accumulation within the cathode framework.
Byung‐Man Kim, Arvind Pujari, Hooman Abbasi, Weidong Xu, Yutong Han, Samuel D. Stranks, Michael De Volder   +6 more
wiley   +1 more source

Interplay between strain and charge in Cu(In,Ga)Se2 flexible photovoltaics

npj Flexible Electronics
Flexible and lightweight Cu(In,Ga)Se2 (CIGS) thin-film solar cells are promising for versatile applications, but there is limited understanding of stress-induced changes. In this study, the charge carrier generation and trapping behavior under mechanical
Ha Kyung Park, Kanghoon Yim, Jiyoon Lee, Yunae Cho, Inyoung Jeong, Donghyeop Shin, Jihye Gwak, Aron Walsh, Kihwan Kim, William Jo   +9 more
doaj   +1 more source

Electrically Coded Retinomorphic Spectrophotodetector

Advanced Materials, EarlyView.
Self‐powered retinomorphic pyro‐photodetector is demonstrated that avoids machine‐learning post‐processing and covers 365–940 nm. Electrostatic balancing of built‐in potential produces an electrical wavelength code, delivering <3 nm wavelength decoding accuracy with ∼46 µs response.
Mohit Kumar, Hyunmin Dang, Hyungtak Seo
wiley   +1 more source