Results 31 to 40 of about 13,672 (259)

Forward‐Biased Perovskite Photodiodes for In‐Sensor Optical Change Sensing

open access: yesAdvanced Functional Materials, EarlyView.
A forward‐biased perovskite photodiode is introduced as an in‐sensor analog preprocessing unit that uses current balancing between photocurrent and injection current to generate optical changes relative to programmable optical reference levels. The device directly converts reference‐relative optical changes into bipolar current signals, enabling sensor‐
Eungseon Yeon   +14 more
wiley   +1 more source

User profiling in university libraries by combining multi-perspective clustering algorithm and reader behavior analysis

open access: yesNonlinear Engineering
University libraries are one of the important places to cultivate talents and conduct scientific research, but with the invasion of big data on the Internet, traditional library services cannot accurately understand readers’ needs, leading to a decline ...
Gao Yuping, Gao Wei
doaj   +1 more source

Advances of Commercial and Biological Materials for Electron Transport Layers in Biological Applications

open access: yesFrontiers in Bioengineering and Biotechnology, 2022
Electron transport layer (ETL), one of the important layers for high-performing perovskite solar cells (PSCs), also has great potential in bioengineering applications. It could be used for biological sensors, biological imaging, and biomedical treatments
Zhifu Yin   +4 more
doaj   +1 more source

Blue Upconversion Organic Light‐Emitting Diodes Achieving 1000 cd m−2 With an Operating Voltage of 2.7 V by Suppressing Interfacial Exciton Quenching

open access: yesAdvanced Functional Materials, EarlyView.
A triplet‐blocking layer controls triplet exciton dynamics in blue upconversion OLEDs. The layer keeps charge transfer (CT)‐generated triplet excitons inside the triplet‐triplet annihilation (TTA) host, suppresses anode‐side interfacial quenching, and increases the steady‐state triplet population.
Qing‐Jun Shui   +5 more
wiley   +1 more source

Halide Composition Controls Phase Morphology and Device Specific Performance in Perovskite Photovoltaics and Light Emitting Diodes

open access: yesAdvanced Functional Materials, EarlyView.
We demonstrate that halide composition determines phase morphology, governing distinct operating mechanisms in mixed halide perovskites. Phase segregating 75% Br compositions enhance solar cell performance, whereas intrinsically phase‐separated 95% Br compositions provide stable light emitting diodes.
Tal Binyamin   +6 more
wiley   +1 more source

Blueprints and Measures for ETL Workflows [PDF]

open access: yes, 2005
Extract-Transform-Load (ETL) workflows are data centric workflows responsible for transferring, cleaning, and loading data from their respective sources to the warehouse. Previous research has identified graph-based techniques that construct the blueprints for the structure of such workflows.
Panos Vassiliadis   +3 more
openaire   +2 more sources

High‐Performance, Air‐Stable and Eco‐Friendly Terpene‐Processed Organic Solar Cells via Solvent‐Composition‐Controlled Film Formation Kinetics

open access: yesAdvanced Functional Materials, EarlyView.
Solvent‐composition‐controlled film formation enables high‐performance (efficiency = 18.66%) and air‐stable terpene‐processed organic solar cells. An optimized eucalyptol/tetralin ratio of 50:50 (v/v) balances molecular solvation and aggregation kinetics, producing favorable nanoscale phase separation and vertical composition gradients.
Hyerin Jeon   +4 more
wiley   +1 more source

[The International Association of Hydrogeologists IAH Italy grows up. Starting from January 1, 2024, the Association is registered in the National Single Register of the Third Sector]

open access: yesAcque Sotterranee
[Article in Italian] L’Associazione Internazionale degli Idrogeologi IAH Italy diventa grande.  A partire dal 1° gennaio 2024 l’Associazione è iscritta al Registro Unico Nazionale del Terzo Settore (RUNTS).
Sergio Rusi, Stefania Da Pelo
doaj   +1 more source

Rancang Bangun Data Warehouse Untuk Pembuatan Laporan dan Analisis pada Data Kunjungan Pasien Rawat Jalan Rumah Sakit Universitas Airlangga Berbasis Online Analytical Processing (OLAP)

open access: yesJournal of Information Systems Engineering and Business Intelligence, 2017
Abstrak— Rumah Sakit Universitas Airlangga (RSUA) merupakan sarana pelayanan kesehatan yang dikelola di bawah naungan Universitas Airlangga. Seiring berjalannya proses bisnis, jumlah pasien RSUA yang semakin bertambah menyebabkan data kunjungan pasien ...
Nur Ardista   +2 more
doaj   +1 more source

Reaction‐Time pH Stabilization by Poly(acrylic acid) with Ethanol‐Mediated Growth Control for Efficient Hydrothermal Sb2(S,Se)3 Solar Cells

open access: yesAdvanced Functional Materials, EarlyView.
Poly(acrylic acid) acts as a reaction‐time pH buffer during hydrothermal Sb2(S,Se)3 growth through its COOH/COO‐ equilibrium. When combined with ethanol‐regulated growth, this buffering strategy reduces Sb‐O related surface disorder, improves local electronic uniformity and carrier collection, and increases the champion solar‐cell efficiency to 10.25%,
Juhee Lee   +7 more
wiley   +1 more source

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