{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T01:17:10Z","timestamp":1790731030196,"version":"4.1.0"},"reference-count":23,"publisher":"MDPI AG","issue":"23","license":[{"start":{"date-parts":[[2019,11,25]],"date-time":"2019-11-25T00:00:00Z","timestamp":1574640000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001859","name":"Swedish National Space Agency","doi-asserted-by":"publisher","award":["185\/17"],"award-info":[{"award-number":["185\/17"]}],"id":[{"id":"10.13039\/501100001859","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100004063","name":"Knut och Alice Wallenbergs Stiftelse","doi-asserted-by":"publisher","award":["2016.0059"],"award-info":[{"award-number":["2016.0059"]}],"id":[{"id":"10.13039\/501100004063","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Materials"],"abstract":"<jats:p>To facilitate industrial applications, as well as for environmental and health purposes, there is a need to find less hazardous solvents for processing the photoactive layer of organic solar cells. As there are vast amounts of possibilities to combine organic solvents and solutes, it is of high importance to find paths to discriminate among the solution chemistry possibilities on a theoretical basis. Using Hansen solubility parameters (HSP) offers such a path. We report on some examples of solvent blends that have been found by modelling HSP for an electron donor polymer (TQ1) and an electron acceptor polymer (N2200) to match solvent blends of less hazardous solvents than those commonly used. After the theoretical screening procedure, solubility tests were performed to determine the HSP parameters relevant for the TQ1:N2200 pair in the calculated solvent blends. Finally, thin solid films were prepared by spin-coating from the solvent blends that turned out to be good solvents to the donor-acceptor pair. Our results show that the blend film morphology prepared in this way is similar to those obtained from chloroform solutions.<\/jats:p>","DOI":"10.3390\/ma12233889","type":"journal-article","created":{"date-parts":[[2019,11,25]],"date-time":"2019-11-25T05:52:58Z","timestamp":1574661178000},"page":"3889","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":22,"title":["Using Solubility Parameters to Model More Environmentally Friendly Solvent Blends for Organic Solar Cell Active Layers"],"prefix":"10.3390","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2995-3692","authenticated-orcid":false,"given":"Ishita","family":"Jalan","sequence":"first","affiliation":[{"name":"Department of Engineering and Chemical Sciences, Karlstad University, SE-651 88 Karlstad, Sweden"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lisa","family":"Lundin","sequence":"additional","affiliation":[{"name":"Department of Engineering and Chemical Sciences, Karlstad University, SE-651 88 Karlstad, Sweden"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0995-3823","authenticated-orcid":false,"given":"Jan","family":"van Stam","sequence":"additional","affiliation":[{"name":"Department of Engineering and Chemical Sciences, Karlstad University, SE-651 88 Karlstad, Sweden"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2019,11,25]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"6740","DOI":"10.1021\/acs.chemmater.9b01213","article-title":"Probing the Relationship between Molecular structures, Thermal Transitions, and Morphology in Polymer Semiconductors Using a Woven Glass-Mesh-Based DMTA Technique","volume":"31","author":"Sharma","year":"2019","journal-title":"Chem. Mater."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"14800","DOI":"10.1021\/acsomega.9b01363","article-title":"A Wide-Band Gap Copolymer Donor for Efficient Fullerene-Free Solar Cells","volume":"4","author":"Zhu","year":"2019","journal-title":"ACS Omega"},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"10881","DOI":"10.1039\/C9TC02663K","article-title":"Amorphous electron donros with controllable morphology for non-fullerene polymer solar cells","volume":"7","author":"Uranbileg","year":"2019","journal-title":"J. Mater. Chem. C"},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"5090","DOI":"10.1039\/C9GC02288K","article-title":"Unravelling donor-acceptor film morphology formation for environmentally-friendly OPV ink formulations","volume":"21","author":"Holmes","year":"2019","journal-title":"Green Chem."},{"key":"ref_5","doi-asserted-by":"crossref","unstructured":"Lindqvist, C., Moons, E., and van Stam, J. (2018). Fullerene Aggregation in Thin Films of Polymer Blends for Solar Cell Applications. Materials, 11.","DOI":"10.20944\/preprints201809.0613.v1"},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"131","DOI":"10.1038\/s41566-018-0104-9","article-title":"Next-generation organic photovoltaics based on non-fullerene acceptors","volume":"12","author":"Cheng","year":"2018","journal-title":"Nat. Photonics"},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"10274","DOI":"10.1039\/C6TA04191D","article-title":"A low-cost mixed fullerene acceptor blend for printed electronics","volume":"4","author":"Cooling","year":"2016","journal-title":"J. Mater. Chem. A"},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"26","DOI":"10.1016\/j.synthmet.2018.03.021","article-title":"Photo-degradation in air of spin-coated PC60BM and PC70BM films","volume":"241","author":"Blazinic","year":"2018","journal-title":"Synth. Met."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"69","DOI":"10.1016\/j.egypro.2012.11.166","article-title":"Effect of the active layer thickness on the device performance of polymer solar cells having [60]PCBM and [70]PCBM as electron acceptor","volume":"31","author":"Morvillo","year":"2012","journal-title":"Energy Procedia"},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"14","DOI":"10.1016\/j.tsf.2013.11.150","article-title":"Morphological and spectroscopic characterizations of inkjet-printed poly(3-hexylthiophene-2,5-diyl): Phenyl-C61-butyric acid methyl ester blends for organic solar cell applications","volume":"560","author":"Bruno","year":"2014","journal-title":"Thin Solid Film."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"51","DOI":"10.1016\/j.solmat.2016.03.027","article-title":"Elucidating the origin of the improved current output in inverted polymer solar cells","volume":"152","author":"Morvillo","year":"2016","journal-title":"Sol. Energy Mater. Sol. Cells"},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"1800453","DOI":"10.1002\/adma.201800453","article-title":"Recent Advances in Morphology Optimization for Organic Photovoltaics","volume":"30","author":"Lee","year":"2018","journal-title":"Adv. Mater."},{"key":"ref_13","doi-asserted-by":"crossref","unstructured":"Hansen, C.M. (2000). Hansen Solubility Parameters. A User\u2019s Handbook, CRC Press. [2nd ed.].","DOI":"10.1201\/9781420049312"},{"key":"ref_14","unstructured":"Yang, X. (2012). Solubility, Miscibility, and the Impact on Solid-State Morphology. Semiconducting Polymer Composites: Principles, Morphologies, Properties and Applications, Wiley-VCH KGaA. [1st ed.]."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"1223","DOI":"10.1016\/S0079-6700(03)00045-5","article-title":"A review of polymer dissolution","volume":"28","author":"Koenig","year":"2003","journal-title":"Prog. Polym. Sci."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"165","DOI":"10.1016\/j.chemphys.2018.04.021","article-title":"Determination of Hansen solubility parameters of ionic liquids using double-sphere type of Hansen solubility sphere method","volume":"513","author":"Agata","year":"2018","journal-title":"Chem. Phys."},{"key":"ref_17","doi-asserted-by":"crossref","unstructured":"Zhu, Q.-N., Wang, Q., Hu, Y.-B., and Abliz, X. (2019). Practical Determination of the Solubility Parameters of 1-Alkyl-3-methylimidazolium Bromide ([CnC1im]Br, n = 5, 6, 7, 8) Ionic Liquids by Inverse Gas Chromatography and the Hansen Solubility Parameter. Molecules, 24.","DOI":"10.3390\/molecules24071346"},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"1465","DOI":"10.1016\/j.orgel.2011.05.020","article-title":"High performance bulk-heterojunction organic solar cells fabricated with non-halogenated solvent processing","volume":"12","author":"Park","year":"2011","journal-title":"Org. Electron."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"1405","DOI":"10.1002\/polb.23153","article-title":"Molecular Solubility and Hansen Solubility Parameters for the Analysis of Phase Separation in Bulk Heterojunctions","volume":"50","author":"Duong","year":"2012","journal-title":"J. Polym. Sci. B Polym. Phys."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"1449","DOI":"10.1002\/adfm.201301509","article-title":"Solubility Based Identification of Green Solvents for Small Molecule Organic Solar Cells","volume":"24","author":"Machui","year":"2014","journal-title":"Adv. Funct. Mater."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"138","DOI":"10.1016\/j.solmat.2012.01.005","article-title":"Determination of the P3HT:PCBM solubility parameters via a binary solvent gradient method: Impact of the solubility on the photovoltaic performance","volume":"100","author":"Machui","year":"2012","journal-title":"Sol. Energy Mater. Sol. Cells"},{"key":"ref_22","unstructured":"(2019, October 01). Hansen Solubility Parameters in Practice. Available online: https:\/\/www.hansen-solubility.com\/contact.php."},{"key":"ref_23","unstructured":"Royal Society of Chemistry (2019, October 01). GSK Solvent Selection Guie 2009. Available online: http:\/\/www.rsc.org\/suppdata\/gc\/c0\/c0gc00918k\/c0gc00918k.pdf."}],"container-title":["Materials"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1996-1944\/12\/23\/3889\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T13:37:16Z","timestamp":1760189836000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1996-1944\/12\/23\/3889"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2019,11,25]]},"references-count":23,"journal-issue":{"issue":"23","published-online":{"date-parts":[[2019,12]]}},"alternative-id":["ma12233889"],"URL":"https:\/\/doi.org\/10.3390\/ma12233889","relation":{},"ISSN":["1996-1944"],"issn-type":[{"value":"1996-1944","type":"electronic"}],"subject":[],"published":{"date-parts":[[2019,11,25]]}}}