Results 111 to 120 of about 284,325 (257)

Resolving Nanoscale Heterogeneities in Lead Halide Perovskites Through Low‐Dose Concurrent 4D‐STEM‐EDX Mapping

Advanced Materials, EarlyView.
Mixed‐cation lead mixed‐halide perovskites suffer from structural instabilities linked to nanoscale heterogeneity. To probe this non‐destructively, a low‐dose, concurrent 4D‐STEM and EDX methodology has been developed. Examining a (FA0.83Cs0.17)Pb(I0.8Br0.2)3 film revealed a complex mosaic of coexisting crystal structures. Crucially, local deficiencies
Jinseok Ryu, Alexandra A. Sheader, Mohsen Danaie, David G. Hopkinson, Katherine E. MacArthur, Nakita K. Noel, Christopher S. Allen   +6 more
wiley   +1 more source

DC-DC Boost Converter with Constant Output Voltage for Grid Connected Photovoltaic Application System [PDF]

, 2010
The main purpose of this paper is to introduce an approach to design a DC-DC boost converter with constant output voltage for grid connected photovoltaic application system.
Chan, Pui Weng
core  

Engineering the Assembly Freedom of Donor–Acceptor Type Self‐Assembled Monolayers Toward Efficient and Stable Flexible Perovskite Photovoltaics

Advanced Materials, EarlyView.
Assembly freedom engineering breaks the vertical alignment constraint of donor–acceptor self‐assembled monolayers, tuning their assembly freedom to achieve quasi‐random molecular orientation. This strategy simultaneously boosts interfacial charge transport and mechanical robustness, enabling high‐efficiency and mechanically stable flexible perovskite ...
Biao Zhou, Guosen Zhang, Hao Wang, Juntao Zhao, Ruijia Zhang, Hong Zhang, Mingwei An, Yue Wang, Yang Wang, Wallace C. H. Choy   +9 more
wiley   +1 more source

Flexoelectricity in Photoconversion: Fundamentals, Materials, and Outlooks. [PDF]

Adv Sci (Weinh)
Mechanical bending of a flexible cantilever induces a strain gradient in the photoactive material. The resulting flexoelectric field couples with photovoltaic and photoconductive effects, modulating charge generation, separation, and collection. A comparative analysis of oxide perovskites, halide perovskites, and two‐dimensional materials is presented,
Huang X, Li F, Zheng R.
europepmc   +2 more sources

Data‐Driven Materials Science for Energy‐Sustainable Applications

Advanced Materials, EarlyView.
Data‐driven approaches powered by artificial intelligence are transforming materials discovery for energy sustainability. This review examines how auto‐generated high‐quality materials databases and domain‐specific language models accelerate research in photovoltaics, thermoelectrics, batteries and magnetic materials. Applications involve extraction of
Jacqueline M. Cole
wiley   +1 more source

Diketopyrrolopyrrole‐Based Cation as a Semiconducting Spacer in Layered Perovskite

Advanced Materials, EarlyView.
Diketopyrrolopyrrole cation incorporated layered perovskites exhibiting extended absorption profiles and enhanced charge carrier mobility with type‐II energy alignment. The improved photoconversion efficiency demonstrates the critical role of incorporating organic semiconductors in optimizing layered perovskite performance.
Waygen Thor, Colin Jeanguenat, Louise De Cian, Demetra Tsokkou, Parnian Ferdowsi, Nicolas J. Diercks, Natalie Banerji, Jun‐Ho Yum, Kevin Sivula   +8 more
wiley   +1 more source

Gate-Tunable Polarity-Reconfigurable Photovoltaic Response With Dual Linearity in NbS₃/WSe₂ Heterostructures for In-Sensor Image Processing. [PDF]

Adv Sci (Weinh)
An NbS3/WSe2 van der Waals heterostructure realizes a continuously gate‐tunable self‐powered photovoltaic response through interfacial band‐alignment modulation and reversible built‐in electric‐field switching. The short‐circuit photocurrent scales linearly with incident power density, while short‐circuit photoresponsivity varies linearly with gate ...
Liu J, Xie J, Hao Q, Hu Y, He Z, Liu H, Lin D, Gan H, Tu Y, Zhang W.   +9 more
europepmc   +2 more sources

Directing Near‐Perfect (001) Orientation in Wafer‐Scale BiOI Thin Films via Halide‐Mediated van der Waals Stacking

Advanced Materials, EarlyView.
Our work introduces a new framework that fundamentally changes how orientation in bismuth oxyhalide systems is approached. Comprehensive experiments, backed by theoretical models, reveal the pivotal role of halide anions to modify the van der Waals stacking energies required to direct orientation. Our method enables the fabrication of near perfect (001)
Gabriel Aygur, Ashakiran Maibam, Hayden Tuohey, Tony Nguyen, Mei Xian Low, Sumeet Walia, Zijun (June) Yong, Ravichandar Babarao, Daniel Gomez, Enrico Della Gaspera, Joel van Embden   +10 more
wiley   +1 more source

Unconventional Biexciton Dynamics in Superradiant Perovskite Quantum Dots Driven by Many‐Body Correlations

Advanced Materials, EarlyView.
Single‐particle spectroscopy and variational quantum Monte Carlo simulations reveal that strong many‐body correlations fundamentally alter biexciton radiative recombination in weakly confined CsPbBr3 quantum dots. Intra‐ and inter‐exciton correlations reverse the conventional lifetime hierarchy, yielding biexcitons with longer radiative lifetimes than ...
Chenglian Zhu, Jose L. Movilla, Petra Hoffmann, Ihor Cherniukh, Willem P. A. Verheijen, Leon G. Feld, Josep Planelles, Maryna I. Bodnarchuk, Simon C. Boehme, Juan I. Climente, Maksym V. Kovalenko, Gabriele Rainò   +11 more
wiley   +1 more source

Development of a building integrated photovoltaic/thermal solar energy cogeneration system [PDF]

, 2008
Using renewable energy sources for onsite cogeneration from structural building elements is a relatively new concept and is gaining considerable interest.
Carson, James K., Bura, Sunil Kumar, Lay, Mark C., Duke, Mike, Anderson, Timothy Nicholas   +4 more
core