Results 1 to 10 of about 24,150 (266)

Exciton diffusion and dissociation in organic and quantum‐dot solar cells

SmartMat, 2023
For the process of photovoltaic conversion in organic solar cells (OSCs) and quantum‐dot solar cells (QDSCs), three of four steps are determined by exciton behavior, namely, exciton generation, exciton diffusion, and exciton dissociation.
Yuze Lin
exaly   +2 more sources

Attosecond three-stage formation and coherent exciton dynamics in a two-dimensional material under strong field [PDF]

Light: Science & Applications
Excitons play a crucial role in optical properties of two-dimensional materials. While significant progress has been made in understanding exciton dynamics on femtosecond timescales, the microscopic details of the earliest stages of exciton formation and
Qing Chen, Daqiang Chen, Chenyu Wang, Yunfei Bai, Chao Lian, Zhe Xu, Haizhong Guo, Enge Wang, Sheng Meng   +8 more
doaj   +2 more sources

Synthesis and Solvatochromic Behavior of Zwitterionic Donor–Bridge–Acceptor Systems with Oligo(p-phenylene) Spacers

Organic Materials, 2021
Oligo(p-phenylene)s with a donor phenol group and an acceptor pyridinium moiety separated by one and two p-phenylene units were synthesized by the linear iterative Suzuki–Miyaura coupling method using aryl nonaflates as effective coupling reagents ...
Irina Zharinova, Nicolau Saker Neto, Tze Cin Owyong, Jonathan M. White, Wallace W. H. Wong   +4 more
doaj   +1 more source

Sub-micron spin-based magnetic field imaging with an organic light emitting diode

Nature Communications, 2023
Previous demonstrations of electrically and optically detected magnetic resonance in OLED materials have established these systems as promising candidates for magnetic field sensing.
Rugang Geng, Adrian Mena, William J. Pappas, Dane R. McCamey   +3 more
doaj   +1 more source

The Effect of the Exciton Continuum on the Exciton–Exciton Correlation [PDF]

physica status solidi (a), 2000
We present a numeric calculation of the exciton-exciton correlation for a one-dimensional semiconductor model with long-range Coulomb interactions, taking into account the effect of the effect of the exciton continuum. we use the obtained correlation functions to calculate the time integrated intensity of the four wave mixing signal.
MARTINO, Giovanna, SAVASTA, Salvatore, GIRLANDA, Raffaello   +2 more
openaire   +2 more sources

Exciton–Exciton Annihilation as a Probe of Exciton Diffusion in Large Porphyrin Nanorings [PDF]

The Journal of Physical Chemistry C, 2020
The photophysical behavior of natural and artificial cyclic supramolecular structures has been intensively investigated in the past decade.
Giovanni Bressan, Michael Jirasek, Harry L. Anderson, Ismael A. Heisler, Stephen R. Meech   +4 more
openaire   +3 more sources

Revealing the influence of steric bulk on the triplet–triplet annihilation upconversion performance of conjugated polymers

Scientific Reports, 2021
A series of poly(phenylene-vinylene)-based copolymers are synthesized using the Gilch method incorporating monomers with sterically bulky sidechains.
Riley O’shea, William J. Kendrick, Can Gao, Tze Cin Owyong, Jonathan M. White, Kenneth P. Ghiggino, Wallace W. H. Wong   +6 more
doaj   +1 more source

Naturally-meaningful and efficient descriptors: machine learning of material properties based on robust one-shot ab initio descriptors

Journal of Cheminformatics, 2022
Establishing a data-driven pipeline for the discovery of novel materials requires the engineering of material features that can be feasibly calculated and can be applied to predict a material’s target properties.
Sherif Abdulkader Tawfik, Salvy P. Russo
doaj   +1 more source

A machine learning platform for the discovery of materials

Journal of Cheminformatics, 2021
For photovoltaic materials, properties such as band gap $$E_{g}$$ E g are critical indicators of the material’s suitability to perform a desired function.
Carl E. Belle, Vural Aksakalli, Salvy P. Russo   +2 more
doaj   +1 more source

Active waveguide Bragg lasers via conformal contact PDMS stamps

Scientific Reports, 2022
Lasing is observed in Bragg lasers formed through conformal contact of a patterned PDMS stamp with a plain active film, spincoated on glass. The thresholds, output efficiencies and spectral characteristics are compared to standard substrate patterned ...
Yun Li, Girish Lakhwani
doaj   +1 more source