Charge generation in organic solar cells: Journey toward 20% power conversion efficiency: Special Issue: Emerging Investigators

Y Tamai - Aggregate, 2022 - Wiley Online Library
The power conversion efficiencies of organic solar cells (OSCs) have routinely lagged far
behind those of their inorganic counterparts. However, owing to the enormous contributions …

A comprehensive review on poly (3-alkylthiophene)-based crystalline structures, protocols and electronic applications

S Agbolaghi, S Zenoozi - Organic Electronics, 2017 - Elsevier
Abstract Poly (3-alkylthiophenes)(P3ATs) particularly poly (3-hexylthiophene)(P3HT) have
vigorous tendency to crystallize into the ordered morphologies, thereby reflect the efficient …

Exciton diffusion in conjugated polymers: from fundamental understanding to improvement in photovoltaic conversion efficiency

Y Tamai, H Ohkita, H Benten, S Ito - The journal of physical …, 2015 - ACS Publications
Singlet exciton diffusion plays a central role in the photovoltaic conversion in organic
photovoltaics (OPVs). Upon light absorption, singlet excitons are promptly generated in …

Efficient energy transport in an organic semiconductor mediated by transient exciton delocalization

AJ Sneyd, T Fukui, D Paleček, S Prodhan, I Wagner… - Science …, 2021 - science.org
Efficient energy transport is desirable in organic semiconductor (OSC) devices. However,
photogenerated excitons in OSC films mostly occupy highly localized states, limiting exciton …

Energy level offsets determine the interplay between charge and energy transfer in all-small-molecule organic solar cells

G Wen, R Hu, J Feng, J Peng, Z Chen, C Zhang… - Chemical Engineering …, 2023 - Elsevier
All-small-molecule organic solar cells (ASM OSCs) hold great promise in OSCs owing to
their defined structures, simple purification, and good reproducibility, but are challenging for …

Spectroscopic signature of two distinct H-aggregate species in poly (3-hexylthiophene)

F Panzer, M Sommer, H Bässler, M Thelakkat… - …, 2015 - ACS Publications
In an endeavor to correlate the optoelectronic properties of π-conjugated polymers with their
structural properties, we investigated the aggregation of P3HT in THF solution within a …

Large crystalline domains and an enhanced exciton diffusion length enable efficient organic solar cells

Y Zhang, MT Sajjad, O Blaszczyk, AJ Parnell… - Chemistry of …, 2019 - ACS Publications
We studied crystallinity and exciton harvesting in bulk heterojunctions of the semiconducting
polymer PffBT4T-2OD and electron acceptor PC71BM that are used to make highly efficient …

Comparison of different rate constant expressions for the prediction of charge and energy transport in oligoacenes

V Stehr, RF Fink, M Tafipolski… - Wiley Interdisciplinary …, 2016 - Wiley Online Library
Charge and exciton transport in organic semiconductors is crucial for a variety of
optoelectronic applications. The prediction of the material‐dependent exciton diffusion …

Simulations of singlet exciton diffusion in organic semiconductors: a review

JA Bjorgaard, ME Köse - Rsc Advances, 2015 - pubs.rsc.org
This review describes exciton diffusion simulation strategies in condensed phase organic
semiconductors. Methods for calculating energy transfer rate constants are discussed along …

Intrachain exciton motion can compete with interchain hopping in conjugated polymer films with a strong J-aggregate property

Y Murata, Y Tamai - The Journal of Physical Chemistry Letters, 2022 - ACS Publications
Understanding exciton diffusion properties in organic semiconductor films is crucial for
organic solar cells because excitons need to diffuse to an electron donor/acceptor interface …