Plastic-Syringe Induced Silicone Contamination in Organic Photovoltaic Fabrication: Implications for Small-Volume Additives

TitlePlastic-Syringe Induced Silicone Contamination in Organic Photovoltaic Fabrication: Implications for Small-Volume Additives
Publication TypeJournal Article
Year of Publication2012
AuthorsCarr JA, Nalwa KS, Mahadevapuram R, Chen YQ, Anderegg J, Chaudhary S
Journal TitleACS Applied Materials & Interfaces
Volume4
Pages2831-2835
Date Published06
Type of ArticleArticle
ISBN Number1944-8244
Accession NumberWOS:000305716900001
KeywordsEFFICIENCY, ENHANCEMENT, heterojunctions, ORGANIC, P3HT, PDMS, performance, PHASE-SEPARATION, photovoltaic, PLASTIC, poly(3-hexylthiophene), polydimethylsiloxane, POLYMER, polymer solar-cells, silicone, solar
Abstract

Herein, the implications of silicone contamination found in solution-processed conjugated polymer solar cells are explored. Similar to a previous work based on molecular cells, we find this contamination as a result of the use of plastic syringes during fabrication. However, in contrast to the molecular case, we find that glass-syringe fabricated devices give superior performance than plastic-syringe fabricated devices in poly(3-hexylthiophene)-based cells. We find that the unintentional silicone addition alters the solution's wettability, which translates to a thinner, less absorbent film on spinning. With many groups studying the effects of small-volume additives, this work should be closely considered as many of these additives may also directly alter the solutions' wettability, or the amount of silicone dissolved off the plastic syringes, or both. Thereby, film thickness, which generally is not reported in detail, can vary significantly from device to device.

URL<Go to ISI>://WOS:000305716900001
DOI10.1021/am3001677
Alternate JournalACS Appl. Mater. Interfaces