Energetics and Optimal Molecular Packing for Singlet Fission in BN-doped Perylenes: Electronic Adiabatic State Basis Screening

2021 ◽  
Author(s):  
Anurag Singh ◽  
Alexander Humeniuk ◽  
Merle Insa Silja Röhr
Keyword(s):  
Electronic Properties ◽  
Molecular Packing ◽  
Photovoltaic Devices ◽  
Singlet Fission ◽  
Adiabatic State

Singlet fission has the potential to increase the efficiency of photovoltaic devices, but the design of suitable chromophores is notoriously difficult. Both the electronic properties of the monomer and the...

Star-shaped heptamers of discotic dyes as new materials for photovoltaic devices

2004 ◽  
Vol 836 ◽  
Author(s):  
S. Holger Eichhorn ◽  
Nicholas Fox ◽  
Bryan Bornais
Keyword(s):  
Liquid Crystal ◽  
Electronic Properties ◽  
Photovoltaic Devices ◽  
New Materials ◽  
Discotic Liquid Crystal ◽  
P Type ◽  
Potential Use

AbstractPotentially n-type and p-type semi-conducting discotic liquid crystal dyes are linked together to star-shaped heptamers, which might self-organize into super-columns of separated p-type and n-type columnar stacks. Their synthesis, mesomorphism, and electronic properties will be discussed along with their potential use in photovoltaic devices.

scholarly journals Porous Shape-Persistent Rylene Imine Cages with Tunable Optoelectronic Properties and Delayed Fluorescence

2020 ◽  
Author(s):  
Hsin-Hua Huang ◽  
Kyung Seob Song ◽  
Alessandro Prescimone ◽  
Rajesh Mannancherry ◽  
Ali Coskun ◽  
...  
Keyword(s):  
Excited State ◽  
Electronic Properties ◽  
Green Light ◽  
Delayed Fluorescence ◽  
Optoelectronic Properties ◽  
Covalent Organic Frameworks ◽  
Singlet Fission ◽  
Triplet Pair ◽  
Material Porosity

A simultaneous combination of porosity and tunable optoelectronic properties, common in covalent organic frameworks, are rare in shape-persistent organic cages. Yet, organic cages offer important molecular advantages, the solubility and modularity. Herein, we report the synthesis of a series of chiral imine organic cages with three built-in rylene units by means of dynamic imine chemistry and we investigate their textural and optoelectronic properties. Thereby we demonstrate that the synthesized rylene cages are porous, can be reversibly reduced at accessible potentials, and can absorb from UV up to green light. We also show that they preferentially adsorb CO2 over N2 and CH4 with a good selectivity. In addition, we discovered that the cage incorporating three perylene-3,4:9,10-bis(dicarboximide) units displays a delayed fluorescence, likely as a consequence of formation of a correlated triplet pair, the multiexciton state in singlet fission. Rylene cages thus represent a unique platform to investigate the effect of electronic properties on material porosity and, at the same time, to probe excited-state phenomena in the limit of vanishing interchromophore coupling. <br>

scholarly journals Recent progress in well-defined higher azaacenes (n ≥ 6): synthesis, molecular packing, and applications

2020 ◽  
Vol 4 (12) ◽  
pp. 3419-3432 ◽  
Author(s):  
Zhongbo Zhang ◽  
Qichun Zhang
Keyword(s):  
Single Crystal ◽  
Electronic Properties ◽  
Crystal Structures ◽  
Recent Progress ◽  
Molecular Packing ◽  
Single Crystal Structures

In this review, we will focus on the recent progress in the synthetic strategies, photo-electronic properties, molecular packing modes and applications of azaacenes (n ≥ 6) with single-crystal structures.

Defects in Copper Indium Aluminum Diselenide Films and their Impact on Photovoltaic Device Performance

2003 ◽  
Vol 763 ◽  
Author(s):  
Jennifer T. Heath ◽  
J. David Cohen ◽  
William N. Shafarman
Keyword(s):  
Electronic Properties ◽  
Photovoltaic Device ◽  
Absorber Layer ◽  
Device Performance ◽  
Photovoltaic Devices ◽  
Al Content ◽  
Copper Indium

AbstractThe electronic properties of polycrystalline CuIn1-xAlxSe2 (CIAS) films, which are incorporated as the absorber layer in photovoltaic devices, have been studied to better understand limitations on device performance. These studies have shown that compared to lower Al content films and to CuIn1-yGaySe2films, films with x ≥ 0.29 are relatively intrinsic, spatially nonuniform, and have broader bandtails characterized by much higher Urbach energies. This indicates that the CIAS films with x ≥ 0.29 are significantly more disordered than lower Al content CIAS or corresponding CIGS films, which likely negatively impacts the resulting photovoltaic device performance.

scholarly journals Fullerene−Oligophenylenevinylene Hybrids:  Synthesis, Electronic Properties, and Incorporation in Photovoltaic Devices

2000 ◽  
Vol 122 (31) ◽  
pp. 7467-7479 ◽  
Author(s):  
Jean-François Eckert ◽  
Jean-François Nicoud ◽  
Jean-François Nierengarten ◽  
Sheng-Gao Liu ◽  
Luis Echegoyen ◽  
...  
Keyword(s):  
Electronic Properties ◽  
Photovoltaic Devices

The Relation Between Molecular Packing or Morphology and Chemical Structure or Processing Conditions: the Effect on Electronic Properties

2014 ◽  
Vol 24 (17) ◽  
pp. 2530-2536 ◽  
Author(s):  
Pramod Kumar ◽  
Kammasandra Nanajunda Shivananda ◽  
Wojciech Zajączkowski ◽  
Wojciech Pisula ◽  
Yoav Eichen ◽  
...  
Keyword(s):  
Electronic Properties ◽  
Chemical Structure ◽  
Molecular Packing ◽  
Processing Conditions

Singlet Fission in Rubrene Derivatives: Impact of Molecular Packing

2017 ◽  
Vol 29 (7) ◽  
pp. 2777-2787 ◽  
Author(s):  
Christopher Sutton ◽  
Naga Rajesh Tummala ◽  
David Beljonne ◽  
Jean-Luc Brédas
Keyword(s):  
Molecular Packing ◽  
Singlet Fission

Molybdenum incorporated Cu1.69ZnSnS4 kesterite photovoltaic devices with bilayer microstructure and tunable optical-electronic properties

Solar Energy ◽  
2019 ◽  
Vol 194 ◽  
pp. 777-787 ◽  
Author(s):  
Siarhei Zhuk ◽  
Terence Kin Shun Wong ◽  
Shreyash Sudhakar Hadke ◽  
Stener Lie ◽  
Asim Guchhait ◽  
...  
Keyword(s):  
Electronic Properties ◽  
Photovoltaic Devices
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