Effects of Heteroatom Substitution on the Photovoltaic Performance of Donor Materials in Organic Solar Cells

2021 ◽  
Author(s):  
Hang Yang ◽  
Chaohua Cui ◽  
Yongfang Li
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Photovoltaic Performance ◽  
Heteroatom Substitution

scholarly journals Organic Solar Cells: Water Ingress in Encapsulated Inverted Organic Solar Cells: Correlating Infrared Imaging and Photovoltaic Performance (Adv. Energy Mater. 20/2015)

2015 ◽  
Vol 5 (20) ◽  
pp. n/a-n/a ◽  
Author(s):  
Jens Adams ◽  
Michael Salvador ◽  
Luca Lucera ◽  
Stefan Langner ◽  
George D. Spyropoulos ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Infrared Imaging ◽  
Photovoltaic Performance ◽  
Water Ingress ◽  
Energy Mater

scholarly journals Recent Advances in Non-Fullerene Acceptors of the IDIC/ITIC Families for Bulk-Heterojunction Organic Solar Cells

2020 ◽  
Vol 21 (21) ◽  
pp. 8085
Author(s):  
Giacomo Forti ◽  
Andrea Nitti ◽  
Peshawa Osw ◽  
Gabriele Bianchi ◽  
Riccardo Po ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Molecular Design ◽  
Bulk Heterojunction ◽  
Photovoltaic Performance ◽  
Fine Tuning ◽  
The Past ◽  
Recent Advances ◽  
Group Modification ◽  
End Capping

The introduction of the IDIC/ITIC families of non-fullerene acceptors has boosted the photovoltaic performances of bulk-heterojunction organic solar cells. The fine tuning of the photophysical, morphological and processability properties with the aim of reaching higher and higher photocurrent efficiencies has prompted uninterrupted worldwide research on these peculiar families of organic compounds. The main strategies for the modification of IDIC/ITIC compounds, described in several contributions published in the past few years, can be summarized and classified into core modification strategies and end-capping group modification strategies. In this review, we analyze the more recent advances in this field (last two years), and we focus our attention on the molecular design proposed to increase photovoltaic performance with the aim of rationalizing the general properties of these families of non-fullerene acceptors.

scholarly journals Effect of Side-Chain Variation on Single-Crystalline Structures for Revealing the Structure–Property Relationships of Organic Solar Cells

2020 ◽  
Vol 02 (01) ◽  
pp. 026-032
Author(s):  
Chen Yang ◽  
Liu Yuan ◽  
Ruimin Zhou ◽  
Zhen Wang ◽  
Jianqi Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Single Crystal ◽  
Crystal Structures ◽  
Organic Solar Cells ◽  
Short Circuit ◽  
Photovoltaic Performance ◽  
Side Chains ◽  
Single Crystal Structures ◽  
Stacking Structure ◽  
Molecular Stacking

The molecular stacking assembly in the active layer plays a significant role in the photovoltaic performance of organic solar cells (OSCs). Here, we report two new small molecular donors with different side chains, FBT-O and FBT-H, and their corresponding fullerene-based OSCs. A slight change in the side chains led to a big difference in the power conversion efficiencies (PCEs). Although the molecular structures of the two donors are similar to each other, PCEs of the devices based on FBT-O were almost three times higher than those of the devices based on FBT-H, with manifold short-circuit current density, fill factor, as well as three orders of magnitude enhancement in the hole mobility. The difference in their single crystal structures was thoroughly investigated, whereby the FBT-O exhibited better planarity leading to appropriate phase separation and domain size. Furthermore, two-dimensional grazing-incidence wide-angle X-ray scattering results of the blend films revealed that the two donors retained a similar stacking structure as compared to the single-crystal structures, thus, establishing a clear relationship between the molecular stacking structure and the device performance.

Correlating crystallinity to photovoltaic performance in single-component organic solar cells via conjugated backbone engineering

2019 ◽  
Vol 170 ◽  
pp. 107575 ◽  
Author(s):  
Shijie Liang ◽  
Yunhua Xu ◽  
Xudong Jiang ◽  
Cheng Li ◽  
Weiwei Li
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Photovoltaic Performance ◽  
Single Component

The influence of the microstructure upon the photovoltaic performance of MDMOPPV: PCBM bulk hetero-junction organic solar cells

2002 ◽  
Vol 725 ◽  
Author(s):  
T. Martens ◽  
J. D'Haen ◽  
T. Munters ◽  
L. Goris ◽  
Z. Beelen ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Photovoltaic Performance ◽  
Cross Sectional ◽  
3 Dimensional ◽  
Blend Morphology ◽  
Transmission Electron ◽  
Drying Conditions ◽  
Particle Statistics ◽  
Tem Transmission Electron Microscopy

AbstractIn this paper, a clear view on the bulk microstructure of MDMO-PPV:PCBM blends as used in bulk hetero-junction organic solar cells is obtained by means of TEM (Transmission Electron Microscopy). Using TEM, 3-dimensional information is acquired on phase separated regions, formed during casting. Particle statistics illustrate quantitatively that a.o. drying conditions and choice of solvent dramatically influence the blend structure. More information about the lateral blend structure and distribution is obtained in cross-sectional view. Since blend morphology is strongly related to photovoltaic performance, TEM can be a powerful tool for understanding today's photovoltaic performances and screening new sets of materials.

CdSe Quantum Dot Organic Solar Cells with Improved Photovoltaic Performance

2020 ◽  
Author(s):  
Xikai yang ◽  
Jiawei Qiao ◽  
Zhi-Hao Chen ◽  
Zhen-Chuan Wen ◽  
Hang Yin ◽  
...  
Keyword(s):  
Solar Cells ◽  
Quantum Dot ◽  
Organic Solar Cells ◽  
Photovoltaic Performance ◽  
Cdse Quantum Dot
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