Interfacial charge transfer states in condensed phase systems

K Vandewal - Annual review of physical chemistry, 2016 - annualreviews.org
Intermolecular charge transfer (CT) states at the interface between electron-donating (D)
and electron-accepting (A) materials in organic thin films are characterized by absorption …

Factors controlling open-circuit voltage losses in organic solar cells

M Azzouzi, T Kirchartz, J Nelson - Trends in Chemistry, 2019 - cell.com
The performance of solar cells based on molecular electronic materials is limited by
relatively low open-circuit voltage (V oc) relative to the absorption threshold. These voltage …

Intrinsic non-radiative voltage losses in fullerene-based organic solar cells

J Benduhn, K Tvingstedt, F Piersimoni, S Ullbrich… - Nature Energy, 2017 - nature.com
Organic solar cells demonstrate external quantum efficiencies and fill factors approaching
those of conventional photovoltaic technologies. However, as compared with the optical gap …

Molecular design and ordering effects in π-functional materials for transistor and solar cell applications

PM Beaujuge, JMJ Fréchet - Journal of the American Chemical …, 2011 - ACS Publications
Organic electronics are broadly anticipated to impact the development of flexible thin-film
device technologies. Among these, solution-processable π-conjugated polymers and small …

Importance of the donor: fullerene intermolecular arrangement for high-efficiency organic photovoltaics

KR Graham, C Cabanetos, JP Jahnke… - Journal of the …, 2014 - ACS Publications
The performance of organic photovoltaic (OPV) material systems are hypothesized to
depend strongly on the intermolecular arrangements at the donor: fullerene interfaces. A …

Fullerene crystallisation as a key driver of charge separation in polymer/fullerene bulk heterojunction solar cells

FC Jamieson, EB Domingo, T McCarthy-Ward… - Chemical …, 2012 - pubs.rsc.org
Solution processed polymer/fullerene blend films are receiving extensive attention as the
photoactive layer of organic solar cells. In this paper we report a range of photophysical …

Delocalization and dielectric screening of charge transfer states in organic photovoltaic cells

B Bernardo, D Cheyns, B Verreet, RD Schaller… - Nature …, 2014 - nature.com
Charge transfer (CT) states at a donor–acceptor heterojunction have a key role in the charge
photogeneration process of organic solar cells, however, the mechanism by which these …

[PDF][PDF] Increased open-circuit voltage of organic solar cells by reduced donor-acceptor interface area

K Vandewal, J Widmer, T Heumueller, CJ Brabec… - Adv. Mater, 2014 - academia.edu
DOI: 10.1002/adma. 201400114 performance as long as ECT is lower than the optical gap
of the neat donor (ED*) and acceptor material (EA*). It has recently been shown that for an …

Toward over 15% power conversion efficiency for organic solar cells: current status and perspectives

J Zhang, L Zhu, Z Wei - Small Methods, 2017 - Wiley Online Library
Significant improvement in the power conversion efficiency (PCE) of organic solar cells
(OSCs) is achieved by developing novel donor and acceptor materials, optimizing the phase …

Insights from transient optoelectronic analyses on the open-circuit voltage of organic solar cells

D Credgington, JR Durrant - The Journal of Physical Chemistry …, 2012 - ACS Publications
In this Perspective, we review recent progress on the use of transient optoelectronic
techniques to quantify the processes determining the open-circuit voltage (V OC) of organic …