Preaggregation in Solution Producing Multiple Crystal Forms of Y6 Corresponding to a Variation of Miscibility in PM6-Based Ternary Solar Cells

2022 ◽  
Author(s):  
Ge Yao ◽  
Yansong Ge ◽  
Xinyu Xiao ◽  
Lifu Zhang ◽  
Nan Yi ◽  
...  
Keyword(s):  
Solar Cells ◽  
Crystal Forms

The low-resolution 3D-structure of porin, a channel-forming protein in E. coliouter membranes

1983 ◽  
Vol 41 ◽  
pp. 440-441
Author(s):  
A. Engel ◽  
D.L. Dorset ◽  
A. Massalski ◽  
J.P. Rosenbusch
Keyword(s):  
Crystal Packing ◽  
3D Structure ◽  
Gram Negative Bacteria ◽  
Protein Ratio ◽  
Crystal Forms ◽  
Large Molecules ◽  
Functional Studies ◽  
Voltage Dependent ◽  
Planar Membranes ◽  
Hexagonal Arrays

Porins represent a group of channel forming proteins that facilitate diffusion of small solutes across the outer membrane of Gram-negative bacteria, while excluding large molecules (>650 Da). Planar membranes reconstituted from purified matrix porin (OmpF protein) trimers and phospholipids have allowed quantitative functional studies of the voltage-dependent channels and revealed concerted activation of triplets. Under the same reconstitution conditions but using high protein concentrations porin aggregated to 2D lattices suitable for electron microscopy and image processing. Depending on the lipid-to- protein ratio three different crystal packing arrangements were observed: a large (a = 93 Å) and a small (a = 79 Å) hexagonal and a rectangular (a = 79 Å b = 139 Å) form with p3 symmetry for the hexagonal arrays. In all crystal forms distinct stain filled triplet indentations could be seen and were found to be morphologically identical within a resolution of (22 Å). It is tempting to correlate stain triplets with triple channels, but the proof of this hypothesis requires an analysis of the structure in 3 dimensions.

A thiourea additive-based quadruple cation lead halide perovskite with an ultra-large grain size for efficient perovskite solar cells

Nanoscale ◽  
2019 ◽  
Vol 11 (45) ◽  
pp. 21824-21833 ◽  
Author(s):  
Jyoti V. Patil ◽  
Sawanta S. Mali ◽  
Chang Kook Hong
Keyword(s):  
Thin Films ◽  
Grain Size ◽  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Inorganic Perovskite ◽  
Halide Perovskite ◽  
Lead Halide

Controlling the grain size of the organic–inorganic perovskite thin films using thiourea additives now crossing 2 μm size with >20% power conversion efficiency.

Oxford Spin-Off To Print Solar Cells

2011 ◽  
pp. 011111165738
Author(s):  
Marc Reisch
Keyword(s):  
Solar Cells

Sensitized mesoscopic solar cells

AccessScience ◽  
2015 ◽  
Keyword(s):  
Solar Cells

Polymer solar cells

AccessScience ◽  
2015 ◽  
Keyword(s):  
Solar Cells ◽  
Polymer Solar Cells

Effect of Alkyl Substituents on DPP‐based Small Molecules for Organic Solar Cells

2020 ◽  
Author(s):  
Seunggyun Hong ◽  
Eunhee Lim
Keyword(s):  
Solar Cells ◽  
Small Molecules ◽  
Organic Solar Cells

Solar cells: A solid prospect

Nature China ◽  
2008 ◽  
Author(s):  
Vicki Cleave
Keyword(s):  
Solar Cells

Making better and cheaper solar cells

2016 ◽  
Author(s):  
Sedeer El-Showk
Keyword(s):  
Solar Cells
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