Results 21 to 30 of about 9,462 (253)

Organic Photovoltaic Pseudocapacitors for Neurostimulation [PDF]

open access: yesACS Applied Materials & Interfaces, 2020
Neural interfaces are the fundamental tools to understand the brain and cure many nervous-system diseases. For proper interfacing, seamless integration, efficient and safe digital-to-biological signal transduction, and long operational lifetime are required.
Mertcan Han   +8 more
openaire   +2 more sources

Organic photovoltaics: A journey through time, advancements, and future opportunities

open access: yesІсторія науки і техніки
This comprehensive study explores the realm of organic photovoltaics, a pivotal green energy technology, tracing its journey from early theoretical concepts to its current status as a promising avenue for sustainable energy production.
Gennadiy Bulavko
doaj   +1 more source

Slow thermal equilibration in methylammonium lead iodide revealed by transient mid-infrared spectroscopy

open access: yesNature Communications, 2018
Hybrid organic-inorganic perovskites are emerging materials for efficient photovoltaics; however understanding how charge/heat dissipates inside the material remains a challenge.
Peijun Guo   +12 more
doaj   +1 more source

High-efficiency and air-stable P3HT-based polymer solar cells with a new non-fullerene acceptor

open access: yesNature Communications, 2016
In organic photovoltaics, the best performing devices usually involve low-bandgap polymers whose limited solubility and stability constrain the scalability of organic solar cells. Here, Holliday et al.
Sarah Holliday   +15 more
doaj   +1 more source

Gap variability upon packing in organic photovoltaics.

open access: yesPLoS ONE, 2020
The variation of the HOMO-LUMO band gap is explored for varying packing arrangements of the 4mod BT-4TIC donor-acceptor molecule pair, by means of a high-throughput ab-initio random structure search of packing possibilities. 350 arrangements of the dimer
D López-Durán   +3 more
doaj   +1 more source

Water Adsorption‐Induced Color Sensor: Insight Into the Sensing Mechanism and Interfacial Engineering for Improved Responsiveness

open access: yesAdvanced Functional Materials, EarlyView.
We report a unique color‐sensing phenomenon of a TiO2/SbSI:Sb2S3 device utilizing X‐ray absorption. Based on the revealed penetration and adsorption of water onto TiO2, we successfully improved the color response speed and sensitivity by incorporating a hydrophilic polymer interlayer, thereby opening up opportunities for photodetection applications ...
Tai Kobayashi   +9 more
wiley   +1 more source

Effect of Optical Illumination on Bubble Nanodomains

open access: yesAdvanced Functional Materials, EarlyView.
Stable surface‐confined nanoscale bubble domains are created and manipulated in PMN‐PT single crystals. Under above‐bandgap illumination, these bubble nanodomains remain unchanged. However, upon illumination cessation, they rapidly expand to switch the entire crystal surface, due to the accumulation of a large reservoir of electrons at the crystal ...
Haoze Zhang   +8 more
wiley   +1 more source

Halide Perovskite Integrated Photovoltaic Cathodes Incorporating Pt on ZIF‐8‐Derived Carbon for Solar Hydrogen Production

open access: yesAdvanced Functional Materials, EarlyView.
A low‐Pt catalyst supported on zeolitic imidazolate framework (ZIF‐8)‐derived porous carbon and graphite is integrated with a halide perovskite photovoltaic, yielding cathodes that achieve a high photocurrent density (∼20 mA cm−2) under simulated sunlight and exhibit remarkable stability in acidic media over several days, thereby demonstrating a ...
Na Yeong Oh   +12 more
wiley   +1 more source

Charge Generation and Recombination Pathways in All‐Polymer Bulk Heterojunction Solar Cells

open access: yesAdvanced Functional Materials, EarlyView.
Multimodal spectroscopy and device analysis reveal how field‐dependent charge generation, transport limitations, and non‐geminate recombination govern performance losses in all polymer solar cells. The results identify the key processes controlling charge extraction and recombination, providing insights for the design of more efficient all‐polymer ...
Shahidul Alam   +17 more
wiley   +1 more source

Drawing organic photovoltaics using paint marker pens

open access: yesAIP Advances, 2017
Active layers for organic photovoltaic devices (OPVs) were prepared by hand drawing with paint marker pens containing solutions of the materials. Although the pen-coated organic films were visually non-uniform with quite high surface roughness, OPV ...
Kaori Suzuki   +4 more
doaj   +1 more source

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