Exciton diffusion in organic semiconductors

OV Mikhnenko, PWM Blom, TQ Nguyen - Energy & Environmental …, 2015 - pubs.rsc.org
The purpose of this review is to provide a basic physical description of the exciton diffusion
in organic semiconductors. Furthermore, experimental methods that are used to measure …

Supramolecular approach towards light-harvesting materials based on porphyrins and chlorophylls

J Otsuki - Journal of Materials Chemistry A, 2018 - pubs.rsc.org
Photosynthesis is one of the most important processes that supplies the energy required for
the survival of all living things. The initial process is the absorption of sunlight by a …

Triplet excitons: improving exciton diffusion length for enhanced organic photovoltaics

BT Luppi, D Majak, M Gupta, E Rivard… - Journal of Materials …, 2019 - pubs.rsc.org
A short exciton diffusion length (LD) is one of the main factors limiting the final power
conversion efficiency (PCE) of organic photovoltaics (OPV). Aiming at overcoming this …

A Bio‐inspired Approach for Chromophore Communication: Ligand‐to‐Ligand and Host‐to‐Guest Energy Transfer in Hybrid Crystalline Scaffolds

EA Dolgopolova, DE Williams… - Angewandte Chemie …, 2015 - Wiley Online Library
Efficient multiple‐chromophore coupling in a crystalline metal–organic scaffold was
achieved by mimicking a protein system possessing 100% energy‐transfer (ET) efficiency …

Delayed fluorescence material-assisted high performance ternary organic solar cells realized by prolonged exciton lifetime and diffusion length

L Cao, X Du, H Lin, C Zheng, Z Chen… - Journal of Materials …, 2020 - pubs.rsc.org
In organic solar cells (OSCs), the power conversion efficiency (PCE) is largely influenced by
the number of photo-generated excitons reaching the interface between the donor and the …

Organic Micro-/Nanocrystals of SFX-Based Attractor–Repulsor Molecules with the Feature of Crystal-Induced Luminescence Enhancement

H Zhang, DQ Lin, B Li, HF Liu, SS Wang… - The Journal of …, 2021 - ACS Publications
Spirofluorenexanthanes (SFXs), as burgeoning second-generation spiro compounds
beyond spirobifluorenes (SBFs), can serve as versatile scaffolds for low-cost organic …

Efficient intersystem crossing using singly halogenated carbomethoxyphenyl porphyrins measured using delayed fluorescence, chemical quenching, and singlet …

DM Marin, S Payerpaj, GS Collier, AL Ortiz… - Physical Chemistry …, 2015 - pubs.rsc.org
Sensitizers with high triplet quantum yields are useful for generating photovoltaics,
photocatalysts and photodynamic therapy agents with increased efficiency. In this study, the …

Overall regulation of exciton dynamics by defect engineering in polymeric photocatalysts for hydrogen evolution

L Tian, W **e, X Wu, B Guo, G **e… - The Journal of …, 2020 - ACS Publications
For photocatalysts with a strong exciton effect, overall understanding and regulating exciton
dynamics, which is central to optimizing performance, have been ignored. Herein, taking a …

Effects of meso-tetrakis (4-sulfonatophenyl) porphyrin (TPPS4) aggregation on its spectral and kinetic characteristics and singlet oxygen production

GG Parra, DS Correa, E Silveira-Alves Jr… - … Acta Part A: Molecular …, 2021 - Elsevier
The present work reports the effects of meso-tetrakis (4-sulfonatophenyl) porphyrin (TPPS 4)
aggregation on its excited states absorption spectra, triplet states quenching by molecular …

Enhancing exciton diffusion in porphyrin thin films using peripheral carboalkoxy groups to influence molecular assembly

M Kaushal, AL Ortiz, JA Kassel, N Hall… - Journal of Materials …, 2016 - pubs.rsc.org
The effects of molecular arrangement on the singlet exciton diffusion properties of free-base
carboalkoxyphenylporphyrins containing a variety of alkyl substituents were investigated in …