scholarly journals Grain Boundary Control of Organic Semiconductors via Solvent Vapor Annealing for High-Sensitivity NO2 Detection

Sensors ◽  
2021 ◽  
Vol 21 (1) ◽  
pp. 226
Author(s):  
Sihui Hou ◽  
Xinming Zhuang ◽  
Huidong Fan ◽  
Junsheng Yu
Keyword(s):  
Organic Semiconductors ◽  
Limit Of Detection ◽  
Thin Film Transistor ◽  
High Sensitivity ◽  
Organic Thin Film ◽  
Solvent Vapor ◽  
Vapor Annealing ◽  
Order Of Magnitude ◽  
Gas Molecules ◽  
Solvent Vapor Annealing

The microstructure of the organic semiconductor (OSC) active layer is one of the crucial topics to improve the sensing performance of gas sensors. Herein, we introduce a simple solvent vapor annealing (SVA) process to control 6,13-bis(triisopropylsilylethynyl)-pentacene (TIPS-pentacene) OSC films morphology and thus yields high-sensitivity nitrogen organic thin-film transistor (OTFT)-based nitrogen dioxide (NO2) sensors. Compared to pristine devices, the toluene SVA-treated devices exhibit an order of magnitude responsivity enhancement to 10 ppm NO2, further with a limit of detection of 148 ppb. Systematic studies on the microstructure of the TIPS-pentacene films reveal the large density grain boundaries formed by the SVA process, improving the capability for the adsorption of gas molecules, thus causing high-sensitivity to NO2. This simple SVA processing strategy provides an effective and reliable access for realizing high-sensitivity OTFT NO2 sensors.

Probing the Evolution of Molecular Packing Underlying HJ-Aggregate Transition in Organic Semiconductors Using Solvent Vapor Annealing

2019 ◽  
Vol 123 (47) ◽  
pp. 28948-28957 ◽  
Author(s):  
Sarah Rose-Marie Marques ◽  
Ryan C. Selhorst ◽  
Dhandapani Venkataraman ◽  
Michael D. Barnes
Keyword(s):  
Organic Semiconductors ◽  
Molecular Packing ◽  
Solvent Vapor ◽  
Vapor Annealing ◽  
Solvent Vapor Annealing

scholarly journals Engineered exciton diffusion length enhances device efficiency in small molecule photovoltaics

2018 ◽  
Vol 6 (20) ◽  
pp. 9445-9450 ◽  
Author(s):  
Muhammad T. Sajjad ◽  
Oskar Blaszczyk ◽  
Lethy Krishnan Jagadamma ◽  
Thomas J. Roland ◽  
Mithun Chowdhury ◽  
...  
Keyword(s):  
Organic Semiconductors ◽  
Small Molecule ◽  
Diffusion Length ◽  
Bulk Heterojunction ◽  
Domain Size ◽  
Device Performance ◽  
Solvent Vapor ◽  
Exciton Diffusion Length ◽  
Vapor Annealing ◽  
Solvent Vapor Annealing

A post processing method of solvent vapor annealing (SVA) enhances the diffusion length (LD) and domain size in small molecule organic semiconductors which leads to an enhancement in device performance in bulk heterojunction organic photovoltaics.

Directional Solvent Vapor Annealing for Crystal Alignment in Solution-Processed Organic Semiconductors

2017 ◽  
Vol 9 (31) ◽  
pp. 26226-26233 ◽  
Author(s):  
Deepak Bharti ◽  
Vivek Raghuwanshi ◽  
Ishan Varun ◽  
Ajay Kumar Mahato ◽  
Shree Prakash Tiwari
Keyword(s):  
Organic Semiconductors ◽  
Solution Processed ◽  
Solvent Vapor ◽  
Vapor Annealing ◽  
Crystal Alignment ◽  
Solvent Vapor Annealing

Feasible tuning of barrier energy in PEDOT:PSS/Bi2Te3 nanowires-based thermoelectric nanocomposite thin films through polar solvent vapor annealing

Nano Energy ◽  
2020 ◽  
Vol 67 ◽  
pp. 104207 ◽  
Author(s):  
Wan Sik Kim ◽  
Gopinathan Anoop ◽  
Il-Seok Jeong ◽  
Hye Jeong Lee ◽  
Hyun Bin Kim ◽  
...  
Keyword(s):  
Thin Films ◽  
Polar Solvent ◽  
Solvent Vapor ◽  
Barrier Energy ◽  
Nanocomposite Thin Films ◽  
Vapor Annealing ◽  
Solvent Vapor Annealing

scholarly journals Solvent Vapor Annealing: Bistetracene Thin Film Polymorphic Control to Unravel the Effect of Molecular Packing on Charge Transport (Adv. Mater. Interfaces 9/2018)

2018 ◽  
Vol 5 (9) ◽  
pp. 1870040
Author(s):  
Edmund K. Burnett ◽  
Jack Ly ◽  
Muhammad R. Niazi ◽  
Lei Zhang ◽  
Samantha R. McCuskey ◽  
...  
Keyword(s):  
Thin Film ◽  
Charge Transport ◽  
Molecular Packing ◽  
Solvent Vapor ◽  
Vapor Annealing ◽  
Solvent Vapor Annealing
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