scholarly journals Sequentially Deposited versus Conventional Nonfullerene Organic Solar Cells: Interfacial Trap States, Vertical Stratification, and Exciton Dissociation

2019 ◽  
Vol 9 (47) ◽  
pp. 1902145 ◽  
Author(s):  
Jiangbin Zhang ◽  
Moritz H. Futscher ◽  
Vincent Lami ◽  
Felix U. Kosasih ◽  
Changsoon Cho ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Vertical Stratification ◽  
Trap States ◽  
Exciton Dissociation

Unraveling the Temperature Dependence of Exciton Dissociation and Free Charge Generation in Nonfullerene Organic Solar Cells

Solar RRL ◽  
2021 ◽  
Vol 5 (4) ◽  
pp. 2000789
Author(s):  
Chao Ma ◽  
Christopher C. S. Chan ◽  
Xinhui Zou ◽  
Han Yu ◽  
Jianquan Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Temperature Dependence ◽  
Organic Solar Cells ◽  
Free Charge ◽  
Exciton Dissociation ◽  
Charge Generation

Capacitance Spectroscopy of Light Induced Trap States in Organic Solar Cells

2016 ◽  
Vol 120 (39) ◽  
pp. 22169-22178 ◽  
Author(s):  
Robert A. Street ◽  
Yang Yang ◽  
Barry C. Thompson ◽  
Iain McCulloch
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Trap States ◽  
Capacitance Spectroscopy

scholarly journals Diffusion-enhanced exciton dissociation in single-material organic solar cells

2021 ◽  
Vol 23 (37) ◽  
pp. 20848-20853
Author(s):  
Nong V. Hoang ◽  
Vasileios C. Nikolis ◽  
Lukasz Baisinger ◽  
Koen Vandewal ◽  
Maxim S. Pshenichnikov
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Domain Boundary ◽  
Exciton Dissociation ◽  
Dissociation Efficiency ◽  
Single Material

Multiple crossings at the domain boundary with different molecular orientations enhance the exciton dissociation efficiency in single-material organic solar cells.

scholarly journals Charge-generating mid-gap trap states define the thermodynamic limit of organic photovoltaic devices

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Nasim Zarrabi ◽  
Oskar J. Sandberg ◽  
Stefan Zeiske ◽  
Wei Li ◽  
Drew B. Riley ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Detailed Balance ◽  
Linear Process ◽  
Open Circuit ◽  
Trap States ◽  
Organic Photovoltaic Devices ◽  
Inorganic Semiconductors ◽  
Harvesting Systems ◽  
Gap States

AbstractDetailed balance is a cornerstone of our understanding of artificial light-harvesting systems. For next generation organic solar cells, this involves intermolecular charge-transfer (CT) states whose energies set the maximum open circuit voltage VOC. We have directly observed sub-gap states significantly lower in energy than the CT states in the external quantum efficiency spectra of a significant number of organic semiconductor blends. Taking these states into account and using the principle of reciprocity between emission and absorption results in non-physical radiative limits for the VOC. We propose and provide compelling evidence for these states being non-equilibrium mid-gap traps which contribute to photocurrent by a non-linear process of optical release, upconverting them to the CT state. This motivates the implementation of a two-diode model which is often used in emissive inorganic semiconductors. The model accurately describes the dark current, VOC and the long-debated ideality factor in organic solar cells. Additionally, the charge-generating mid-gap traps have important consequences for our current understanding of both solar cells and photodiodes – in the latter case defining a detectivity limit several orders of magnitude lower than previously thought.

scholarly journals Correction: A multi-objective optimization-based layer-by-layer blade-coating approach for organic solar cells: rational control of vertical stratification for high performance

2020 ◽  
Vol 13 (1) ◽  
pp. 317-317
Author(s):  
Rui Sun ◽  
Jie Guo ◽  
Qiang Wu ◽  
Zhuohan Zhang ◽  
Wenyan Yang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
High Performance ◽  
Vertical Stratification ◽  
Layer By Layer ◽  
Multi Objective Optimization ◽  
Multi Objective ◽  
Rational Control ◽  
Blade Coating ◽  
Energy Environ

Correction for ‘A multi-objective optimization-based layer-by-layer blade-coating approach for organic solar cells: rational control of vertical stratification for high performance’ by Rui Sun et al., Energy Environ. Sci., 2019, 12, 3118–3132.

Trap states limited nanosecond response of organic solar cells

2010 ◽  
Author(s):  
Nico Christ ◽  
Siegfried W. Kettlitz ◽  
Simon Zufle ◽  
Sebastian Valouch ◽  
Uli Lemmer
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Trap States
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