Charge transfer processes in OPV materials as revealed by EPR spectroscopy

J Niklas, OG Poluektov - Advanced Energy Materials, 2017 - Wiley Online Library
Understanding charge separation and charge transport at a molecular level is crucial for
improving the efficiency of organic photovoltaic (OPV) cells. Under illumination of Bulk …

Photoinduced hole transfer becomes suppressed with diminished driving force in polymer‐fullerene solar cells while electron transfer remains active

G Ren, CW Schlenker, E Ahmed… - Advanced Functional …, 2013 - Wiley Online Library
Device performance and photoinduced charge transfer are studied in donor/acceptor blends
of the oxidation‐resistant conjugated polymer poly [(4, 8‐bis (2‐hexyldecyl) oxy) benzo [1, 2 …

Polaron pair mediated triplet generation in polymer/fullerene blends

SD Dimitrov, S Wheeler, D Niedzialek… - Nature …, 2015 - nature.com
Electron spin is a key consideration for the function of organic semiconductors in light-
emitting diodes and solar cells, as well as spintronic applications relying on organic …

Donor‐Acceptor Hybrids for Organic Electronics

E Espildora, JL Delgado, N Martín - Israel Journal of Chemistry, 2014 - Wiley Online Library
This review deals with functional molecules able to transfer one electron from the donor to
the acceptor moiety upon light irradiation. Donor‐bridge‐acceptor molecular systems are of …

Polymer triplet energy levels need not limit photocurrent collection in organic solar cells

CW Schlenker, KS Chen, HL Yip, CZ Li… - Journal of the …, 2012 - ACS Publications
We study charge recombination via triplet excited states in donor/acceptor organic solar
cells and find that, contrary to intuition, high internal quantum efficiency (IQE) can be …

3D charge transport pathway in organic solar cells via incorporation of discotic liquid crystal columns

T Wang, MS Niu, JJ Guo, KN Zhang, ZC Wen… - Solar …, 2020 - Wiley Online Library
In this work, a discotic liquid crystal (DLC) 2, 3, 6, 7, 10, 11‐hexaacetoxytriphenylene (HATP)
is used as the interlayer between poly (3, 4‐ethylene‐dioxythiophene): poly (styrene …

Molecular oriented charge accumulation in high-efficiency polymer solar cells as revealed by operando spin analysis

VASA Rachmat, T Kubodera, D Son… - … applied materials & …, 2019 - ACS Publications
A low band-gap polymer, PTB7-Th, is one of the typical p-type semiconductors among the
next-generation solar-cell materials that have achieved power conversion efficiencies of …

Photo-Cross-Linked Fullerene-Based Hole Transport Material for Moisture-Resistant Regular Fullerene Sandwich Perovskite Solar Cells

A Cabrera-Espinoza, S Collavini… - … Applied Materials & …, 2024 - ACS Publications
Despite the high efficiencies currently achieved with perovskite solar cells (PSCs), the need
to develop stable devices, particularly in humid conditions, still remains. This study presents …

Size Inhomogeneity Facilitates Exciton Dissociation in Carbon Dots

J Fang, Z Fan, Q Huang, S Pan, C Qin, Y Jie - Nano Letters, 2025 - ACS Publications
Organic carbon dots (CDs) exhibit tunable electronic structures and exceptional optical
properties, supporting both exciton-and charge-driven applications. However, the …