Nanostructured Titania−Polymer Photovoltaic Devices Made Using PFPE-Based Nanomolding Techniques

Autor:	Stuart Williams, Edward T. Samulski, Joseph L. Templeton, Vignesh Gowrishankar, Meredith J. Hampton, Michael D. McGehee, I-Kang Ding, Joseph M. DeSimone
Rok vydání:	2008
Předmět:	chemistry.chemical_classification Anatase Materials science Nanostructure General Chemical Engineering Bilayer Photovoltaic system Energy conversion efficiency Nanotechnology General Chemistry Polymer Elastomer Polymer solar cell chemistry Materials Chemistry
Zdroj:	Chemistry of Materials. 20:5229-5234
ISSN:	1520-5002 0897-4756
DOI:	10.1021/cm800729q
Popis:	We fabricated ordered bulk heterojunction photovoltaic (PV) cells using a perfluoropolyether (PFPE) elastomeric mold to control the donor−acceptor interfacial morphology within devices. Anatase titania nanostructures with postlike features ranging from 30 to 100 nm in height and 30 to 65 nm in spacing were fabricated using the Pattern Replication In Nonwetting Templates (PRINT) process. The nanostructured devices showed a 2-fold improvement in both short-circuit current (Jsc) and power conversion efficiency (PCE) relative to reference bilayer cells. Additionally, the titania was functionalized with Z907 dye to increase both the short-circuit current (Jsc) and open-circuit voltage (Voc). As a result we observed a device efficiency (ηeff) of 0.6%, the highest recorded efficiency value so far for an imprinted titania−P3HT device.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8aa8e8a219f066c82b318491817e9c08 https://doi.org/10.1021/cm800729q Zobrazit plný text záznamu