scholarly journals Investigation of nanoscale morphological changes in organic photovoltaics during solvent vapor annealing

2008 ◽  
Vol 18 (3) ◽  
pp. 306-312 ◽  
Author(s):  
Steve Miller ◽  
Giovanni Fanchini ◽  
Yun-Yue Lin ◽  
Cheng Li ◽  
Chun-Wei Chen ◽  
...  
Keyword(s):  
Organic Photovoltaics ◽  
Morphological Changes ◽  
Solvent Vapor ◽  
Vapor Annealing ◽  
Solvent Vapor Annealing

scholarly journals Effects of Solvent Vapor Annealing on Morphology and Charge Transport of Poly(3-hexylthiophene) (P3HT) Films Incorporated with Preformed P3HT Nanowires

Polymers ◽  
2020 ◽  
Vol 12 (5) ◽  
pp. 1188
Author(s):  
Mingu Jang ◽  
Yang-Il Huh ◽  
Mincheol Chang
Keyword(s):  
Thin Films ◽  
Charge Transport ◽  
Carrier Mobility ◽  
Morphological Changes ◽  
Charge Carrier Mobility ◽  
Solvent Vapor ◽  
Molecular Ordering ◽  
Vapor Annealing ◽  
Solvent Vapor Annealing ◽  
Influence Of Solvent

We systematically studied the influence of solvent vapor annealing on the molecular ordering, morphologies, and charge transport properties of poly(3-hexylthiophene) (P3HT) thin films embedded with preformed crystalline P3HT nanowires (NWs). Solvent vapor annealing (SVA) with chloroform (CF) was found to profoundly impact on the structural and morphological changes, and thus on the charge transport characteristics, of the P3HT-NW-embedded P3HT films. With increased annealing time, the density of crystalline P3HT NWs was increased within the resultant films, and also intra- and intermolecular interactions of the corresponding films were significantly improved. As a result, the P3HT-NW-embedded P3HT films annealed with CF vapor for 20 min resulted in a maximized charge carrier mobility of ~0.102 cm2 V−1 s−1, which is higher than that of pristine P3HT films by 4.4-fold (μ = ~0.023 cm2 V−1 s−1).

Effects of solvent vapor annealing on organic photovoltaics with a new type of solution-processable oligothiophene-based electronic donor material

2018 ◽  
Vol 57 (8S3) ◽  
pp. 08RE09 ◽  
Author(s):  
Yuki Akiyama ◽  
Hiroaki Tachibana ◽  
Reiko Azumi ◽  
Tetsuhiko Miyadera ◽  
Masayuki Chikamatsu ◽  
...  
Keyword(s):  
Organic Photovoltaics ◽  
Solvent Vapor ◽  
Donor Material ◽  
Vapor Annealing ◽  
New Type ◽  
Solvent Vapor Annealing ◽  
Solution Processable

Side chain engineering in DTBDT-based small molecules for efficient organic photovoltaics

Nanoscale ◽  
2019 ◽  
Vol 11 (29) ◽  
pp. 13845-13852 ◽  
Author(s):  
Jisu Hong ◽  
Ji Young Choi ◽  
Kyunghun Kim ◽  
Nam-Suk Lee ◽  
Jiqiang Li ◽  
...  
Keyword(s):  
Small Molecules ◽  
Small Molecule ◽  
Organic Photovoltaics ◽  
Side Chain ◽  
Solvent Vapor ◽  
Vapor Annealing ◽  
Solvent Vapor Annealing

A new small-molecule donor with a DTBDT core exhibits apposite blend morphologies and a maximum PCE of 9.18% by side chain engineering and solvent vapor annealing.

scholarly journals Solvent Vapor Annealing of a Diblock Copolymer Thin Film with a Nonselective and a Selective Solvent: Importance of Pathway for the Morphological Changes

2020 ◽  
Vol 41 (14) ◽  
pp. 2000150 ◽  
Author(s):  
Florian A. Jung ◽  
Anatoly V. Berezkin ◽  
Tim B. Tejsner ◽  
Dorthe Posselt ◽  
Detlef‐M. Smilgies ◽  
...  
Keyword(s):  
Thin Film ◽  
Diblock Copolymer ◽  
Morphological Changes ◽  
Selective Solvent ◽  
Solvent Vapor ◽  
Vapor Annealing ◽  
Solvent Vapor Annealing

Crystal-structure of active layers of small molecule organic photovoltaics before and after solvent vapor annealing

2020 ◽  
Vol 235 (1-2) ◽  
pp. 15-28
Author(s):  
Marvin Berlinghof ◽  
Stefan Langner ◽  
Christina Harreiß ◽  
Ella Mara Schmidt ◽  
Rita Siris ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Small Molecule ◽  
Organic Photovoltaics ◽  
Acid Methyl Ester ◽  
Fiber Texture ◽  
Solvent Vapor ◽  
X Ray ◽  
Vapor Annealing ◽  
Solvent Vapor Annealing ◽  
Solvent Vapors

AbstractIt is demonstrated by a detailed structural analysis that the crystallinity and the efficiency of small molecule based organic photovoltaics can be tuned by solvent vapor annealing (SVA). Blends made of the small molecule donor 2,2′-[(3,3′″,3″″,4′-tetraoctyl[2,2′:5′,2″:5″,2′″:5′″,2″″-quinquethiophene]-5,5″″-diyl)bis[(Z)-methylidyne(3-ethyl-4-oxo-5,2-thiazolidinediylidene)]]bis-propanedinitrile (DRCN5T) and the acceptor [6,6]-phenyl C71 butyric acid methyl ester (PC71BM) were annealed using solvent vapors with either a high solubility for the donor (tetrahydrofuran), the acceptor (carbon disulfide) or both (chloroform). The samples were analyzed by grazing-incidence wide-angle X-ray scattering (GIWAXS), electron diffraction, X-ray pole figures, and time-of-flight secondary ion mass spectrometry (ToF-SIMS). A phase separation of DRCN5T and PC71BM is induced by SVA leading to a crystallization of DRCN5T and the formation of a DRCN5T enriched layer. The DRCN5T crystallites possess the two dimensional oblique crystal system with the lattice parameters a = 19.2 Å, c = 27.1 Å, and β = 111.1° for the chloroform case. No major differences in the crystal structure for the other solvent vapors were observed. However, the solvent choice strongly influences the size of the DRCN5T enriched layer. Missing periodicity in the [010]-direction leads to the extinction of all Bragg reflections with k ≠ 0. The annealed samples are randomly orientated with respect to the normal of the substrate (fiber texture).

scholarly journals Solvent vapor annealing on perylene-based organic solar cells

2015 ◽  
Vol 3 (30) ◽  
pp. 15700-15709 ◽  
Author(s):  
Stefan Grob ◽  
Andrew N. Bartynski ◽  
Andreas Opitz ◽  
Mark Gruber ◽  
Florian Grassl ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Organic Solar Cells ◽  
Organic Solar Cell ◽  
Morphological Changes ◽  
Solvent Vapor ◽  
Solar Cell Efficiency ◽  
Cell Efficiency ◽  
Vapor Annealing ◽  
Solvent Vapor Annealing

Solvent vapor annealing on crystalline DIP and amorphous DBP induces morphological changes, which can improve organic solar cell efficiency.

Microwave-assisted solvent vapor annealing to rapidly achieve enhanced performance of organic photovoltaics

2014 ◽  
Vol 2 (36) ◽  
pp. 15175-15180 ◽  
Author(s):  
Buyoung Jung ◽  
Kangmin Kim ◽  
Woochul Kim
Keyword(s):  
Organic Photovoltaics ◽  
High Performance ◽  
Solvent Vapor ◽  
Microwave Assisted ◽  
Vapor Annealing ◽  
Solvent Vapor Annealing

Microwave-assisted solvent vapor annealing (MWSA) treatment is suggested to rapidly achieve high performance organic photovoltaics.

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