Results 71 to 80 of about 16,285 (257)

Electrostatic Potential Complementarity for Thickness‐Tolerant Cathode Interlayers in High‐Efficiency Organic and Tandem Solar Cells

open access: yesAdvanced Science, EarlyView.
Two model molecules — trimesic acid (TMA) and phloroglucinol (PG) — with opposite central electrostatic potential (ESP) distributions are employed to elucidate how molecular electrostatic interactions regulate the cathode interlayer (CIL) PDINN. Electrostatic potential complementarity is revealed as the intrinsic origin of thickness sensitivity in CILs,
Xiaoman Ding   +13 more
wiley   +1 more source

Tuning the Electronic Structure and Properties of Perylene–Porphyrin–Perylene Panchromatic Absorbers

open access: yesThe Journal of Physical Chemistry A, 2016
Light-harvesting architectures that afford strong absorption across the near-ultraviolet to near-infrared region, namely, panchromatic absorptivity, are potentially valuable for capturing the broad spectral distribution of sunlight. One previously reported triad consisting of two perylene monoimides strongly coupled to a free base porphyrin via ethyne ...
Javad, Amanpour   +9 more
openaire   +3 more sources

Carboxyphenolate Coordination Frameworks for High‐Voltage Calcium Storage

open access: yesAdvanced Science, EarlyView.
A hexaanionic carboxyphenolate coordination framework, Ca2‐M‐THBPD (M = Mg, Ca, Ba), exhibits ligand‐centered enolate‐quinonoid redox activity enabling tunable, high‐voltage Ca2+ storage (3.5 V vs Ca2+/Ca) modulated by spectator cations. The amorphous structure accommodates reversible divalent‐ion insertion, contributing to enhanced cycling stability ...
Vasudeva Rao Bakuru   +12 more
wiley   +1 more source

Dipole‐Manipulated Built‐In Electric Field Enables Ultrafast Charge Separation in Perylene Diimide Polymers for Photoelectrochemical Water Splitting

open access: yesAdvanced Science, EarlyView.
Molecular dipole engineering in dendritic perylene diimide polymers through nitrogen‐rich heterocyclic linkers amplifies the built‐in electric field, enabling sub‐picosecond charge separation and efficient multi‐electron accumulation. This structure–dynamics–performance relationship establishes a versatile design strategy for high‐performance organic ...
Ying‐Xin Qiao   +11 more
wiley   +1 more source

Aromaticity‐Engineered Open‐Shell Radical Anions for Air‐Stable Doublet Emission in N‐Annulated Perylene Diimide

open access: yesAdvanced Science, EarlyView.
Open‐shell type radical anions with stable doublet emission have been synthesized that feature aromaticity engineering, through‐space charge‐transfer (TSCT), and electro(fluoro)chromism. ABSTRACT We report the doublet emissive open‐shell radical anions, where the N‐annulated perylene diimide (PDIN–H) is functionalized with aromatic rings.
Jeongyoon Kim   +4 more
wiley   +1 more source

N-Annulated Perylene Diimide Non-Fullerene Acceptors for Organic Photovoltaics

open access: yesColorants, 2023
This work covers the development of non-fullerene acceptors for use in organic photovoltaics built using the N-annulated perylene diimide dye. The classic perylene diimide dye has been extensively used to construct non-fullerene acceptors, leading to ...
Mahmoud E. Farahat, Gregory C. Welch
doaj   +1 more source

Investigation on Fluorescence Quenching Mechanism of Perylene Diimide Dyes by Graphene Oxide

open access: yesMolecules, 2016
Perylene diimide derivatives were used as probes to investigate the effect of the molecular structures on the fluorescence quenching mechanism in a perylene diimide/graphene oxide system.
Yuzhen Zhao   +6 more
doaj   +1 more source

New insights into the origin of perylene in geological samples.

open access: yes, 2009
The origin of the polycyclic aromatic hydrocarbon (PAH) perylene in sediments and petroleum has been a matter of continued debate. Reported to occur in Phanerozoic organic matter (OM), fossil crinoids and tropical termite mounds, its mechanism of ...
Tulipani, S   +34 more
core   +1 more source

Structure-dependent optoelectronic properties of perylene, di-indenoperylene (DIP) isolated molecule and DIP molecular crystal

open access: yesChemistry Central Journal, 2017
Theoretical simulations were designed by first principles approach of density functional theory to investigate the structural and optoelectronic properties of different structural classes of perylene; isolated perylene, diindeno[1,2,3-cd:1′,2′,3′-lm ...
Mazmira Mohamad   +3 more
doaj   +1 more source

perylene

open access: yes, 2021
Temperature dependencies of heat capacity of two polycyclic aromatic hydrocarbons, indeno­[1,2,3-cd]­pyrene and benzo­[ghi]­perylene, in a crystalline state were investigated using adiabatic calorimetry at T = 6.1 to 325.2 K and at T = 5.7 to 329.1 K ...
Maxim I. Lelet   +5 more
core   +1 more source

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