Morphology and structural studies of organic and perovskite solar cells via grazing incidence x-ray scattering

2020 ◽  
Author(s):  
Xinhui Lu
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Grazing Incidence ◽  
Structural Studies ◽  
X Ray ◽  
X Ray Scattering ◽  
Ray Scattering

Markedly different molecular formation in DPP-based small-molecule solar cells probed by grazing-incidence wide-angle X-ray scattering

2017 ◽  
Vol 73 (5) ◽  
pp. 916-922
Author(s):  
Yu Jin Kim ◽  
Chang Eun Song ◽  
Sanjaykumar R. Suranagi ◽  
Jong-Cheol Lee ◽  
Chan Eon Park
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Molecular Design ◽  
Grazing Incidence ◽  
Fullerene Derivative ◽  
Wide Angle ◽  
Performance Property ◽  
X Ray ◽  
X Ray Scattering ◽  
Ray Scattering

This study comprehensively explores the nanostructural properties of two diketopyrrolo[3,4-c]pyrrole-1,4-dione (DPP)-based small molecules with different alkyl side groups and their blends with the fullerene derivative PC71BM, using grazing-incidence wide-angle X-ray scattering synchrotron techniques. Preferentially relative face-on orientation within the larger and more ordered stacking phase of SM1 with its shorter side group (ethylhexyl) was observed in the majority of both pristine and blend thin films, whereas SM2 crystals showed strictly perpendicular orientation. These contrasting crystalline characteristics led to significant differences in the results, from which crystalline structure–performance property correlations are proposed. Thus, the results not only demonstrate important scientific insights into the relationship between molecular structure and crystalline formation but also provide molecular design directions that will facilitate further improvement to the morphology and performance of DPP-based small-molecule solar cells.

scholarly journals In situ Grazing Incidence Small Angle X-ray Scattering on Roll-To-Roll Coating of Organic Solar Cells with Laboratory X-ray Instrumentation

10.3791/61374 ◽  
2021 ◽  
Author(s):  
Michael Korning Sørensen ◽  
Moises Espindola Rodriguez ◽  
Marcial Fernández Castro ◽  
Ashwin Nambi ◽  
Luise Theil Kuhn ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Angle ◽  
Organic Solar Cells ◽  
Grazing Incidence ◽  
Roll Coating ◽  
X Ray ◽  
Roll To Roll ◽  
X Ray Scattering ◽  
Ray Scattering

Strain Analysis in Thin La1−xCaxMnO3 Films by Grazing Incidence X-ray Scattering

1999 ◽  
Vol 602 ◽  
Author(s):  
M. Petit ◽  
L. J. Martinez-Miranda ◽  
M. Rajeswari ◽  
A. Biswas ◽  
D. J. Kang ◽  
...  
Keyword(s):  
Film Thickness ◽  
Lattice Mismatch ◽  
Compressive Strain ◽  
Strain Analysis ◽  
Grazing Incidence ◽  
Relaxation Processes ◽  
Near Surface ◽  
X Ray ◽  
X Ray Scattering ◽  
Ray Scattering

AbstractWe have performed depth profile analyses of the lattice parameters in epitaxial thin films of La1−xCaxMno3 (LCMO), where x = 0.33 or 0.3, to understand the evolution of strain relaxation processes in these materials. The analyses were done using Grazing Incidence X-ray Scattering (GIXS) on films of different thicnesses on two different substrates, (100) oriented LaAlO3 (LAO), with a lattice mismatch of ∼2% and (110) oriented NGO, with a lattice mismatch of less than 0.1%. Films grown on LAO can exhibit up to three in-plane strained lattice constants, corresponding to a slight orthorhombic distortion of the crystal, as well as near-surface and columnar lattice relaxation. As a function of film thickness, a crossover from a strained film to a mixture of strained and relaxed regions in the film occurs in the range of 700 Å. The structural evolution at this thickness coincides with a change in the resistivity curve near the metalinsulator transition. The in-plane compressive strain has a range of 0.2 – 1.5%, depending on the film thickness for filsm in the range of 400 - 1500 A.

A general model for estimating the ordering of mesoporous film by grazing incidence small angle X-ray scattering

2014 ◽  
Vol 115 (20) ◽  
pp. 204311 ◽  
Author(s):  
Nie Zhao ◽  
Chunming Yang ◽  
Qian Zhang ◽  
Xueming Lu ◽  
Yuzhu Wang ◽  
...  
Keyword(s):  
Small Angle ◽  
General Model ◽  
Grazing Incidence ◽  
X Ray ◽  
X Ray Scattering ◽  
Mesoporous Film ◽  
Ray Scattering

Grazing incidence small angle x-ray scattering from free-standing nanostructures

1999 ◽  
Vol 86 (12) ◽  
pp. 6763-6769 ◽  
Author(s):  
Markus Rauscher ◽  
Rogerio Paniago ◽  
Hartmut Metzger ◽  
Zoltan Kovats ◽  
Jan Domke ◽  
...  
Keyword(s):  
Small Angle ◽  
Grazing Incidence ◽  
Free Standing ◽  
X Ray ◽  
X Ray Scattering ◽  
Ray Scattering

Molecular structure of poly(3-alkyl-thiophenes) investigated by calorimetry and grazing incidence X-ray scattering

2012 ◽  
Vol 97 ◽  
pp. 109-118 ◽  
Author(s):  
Jose Abad ◽  
Nieves Espinosa ◽  
Pilar Ferrer ◽  
Rafael García-Valverde ◽  
Carmen Miguel ◽  
...  
Keyword(s):  
Molecular Structure ◽  
Grazing Incidence ◽  
X Ray ◽  
X Ray Scattering ◽  
Ray Scattering
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