User:Cincy21/sandbox

Culminating Outline
Solvent Vapor Annealing

Background of origin/ process


 * Development of thin films with solvents with swollen adn mobile layer
 * Use metal container invert to solvents
 * Computer controlled valves for precise introduction and withdrawal of solvents
 * Many different monitoring programs, such as pressure valves and thickness monitoring for annealing and evaporation phases

Factors Affecting SVA


 * Non-equilibrium conformations
 * Different environments, like weakly saturated vapor

Applications


 * Mapping porous topologies
 * Highly accurate nanostructures
 * Perovskite film creation for photovoltaic performance of solar cells

Challenges moving forward


 * Operational parameters
 * Dewetting the film in the swollen state
 * Organic solvents can be hazardous

Three Areas to Focus on to Improve


 * Controlled chambers
 * In situ performance of process
 * More implementation of block polymer films

Physical Vapor Deposition

Application: anisotropic glasses of low molecular weight organic semiconductors


 * Mechanism
 * Needs: molecular mobility and anisotropic structure at the free surface of the glass
 * Go to a lower energy configuration before being buried by set of molecules
 * Goes to equilibrium and is bulkier for more stability
 * Face on packing with increased overlap between pi orbitals in the samples
 * Anisotropy allows higher charge carrier mobility
 * Have higher density glasses increasing charge transfer
 * Orientation of deposited material is reliant on the temperature

Bibliography- The outline here is developed from many of the focuses overlapped of the resources. The facts from each source can be conglomerated to make subsections of add on for both SVA and PVD.

Figures/Images

Physical Vapor Deposition

https://search.creativecommons.org/photos/d3d48642-b474-4a89-adfd-c93d24c2bced

This image gives an inside look at the chamber and simplistic process of the gas coming in and breaking down and being deposited to make the thin film that is desired. Though it is simplistic, it gives an easy view of the process of what is happening.

Block copolymers

https://www.istockphoto.com/vector/vector-chemical-set-of-six-types-of-copolymers-derived-from-more-than-one-species-gm1287566875-383737391?irgwc=1&cid=IS&utm_medium=affiliate&utm_source=Du%C5%A1an%20Bi%C4%8Danski%20Pr%20Digitalnio&clickid=wqk2L2WZAxyLUA00MKVSfWfHUkBxGxSHxWLzQ80&utm_term=&utm_campaign=&utm_content=258824&irpid=1404368

I am not sure I want to use this but was struggling to find some images but this shows a good representation of the types of polymers created, specifically block copolymer, for solvent vapor annealing.