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Herein, organic photodiodes (OPDs) sensitive to near\u2010infrared (NIR) light are evaluated as photovoltaic pixels for future application in retinal prostheses. Single\u2010junction and tandem OPDs are compared. In the latter, two nominally identical single\u2010junction cells are processed on top of each other, effectively doubling the open\u2010circuit voltage (<jats:italic>V<\/jats:italic>\n<jats:sub>OC<\/jats:sub>). Both single\u2010junction and tandem OPD micropixels can deliver the required charge to stimulate neurons under pulsed NIR light at physiologically safe intensities when connected to stimulating microelectrodes in a physiological saline solution. However, only tandem OPD pixels can cover the entire charge per pulse neural stimulation window due to their higher <jats:italic>V<\/jats:italic>\n<jats:sub>OC<\/jats:sub> (\u22481.4 V). This demonstrates the viability of high\u2010resolution retinal prostheses based on flexible OPD arrays.<\/jats:p>","DOI":"10.1002\/adma.201804678","type":"journal-article","created":{"date-parts":[[2018,10,15]],"date-time":"2018-10-15T03:32:03Z","timestamp":1539574323000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":99,"title":["Near\u2010Infrared Tandem Organic Photodiodes for Future Application in Artificial Retinal Implants"],"prefix":"10.1002","volume":"30","author":[{"given":"Giulio","family":"Simone","sequence":"first","affiliation":[{"name":"Molecular Materials and Nanosystems Institute of Complex Molecular Systems Eindhoven University of Technology  P.O. Box 513 5600 MB Eindhoven The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dario","family":"Di Carlo Rasi","sequence":"additional","affiliation":[{"name":"Molecular Materials and Nanosystems Institute of Complex Molecular Systems Eindhoven University of Technology  P.O. Box 513 5600 MB Eindhoven The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xander","family":"de Vries","sequence":"additional","affiliation":[{"name":"Molecular Materials and Nanosystems Institute of Complex Molecular Systems Eindhoven University of Technology  P.O. Box 513 5600 MB Eindhoven The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ga\u00ebl H. L.","family":"Heintges","sequence":"additional","affiliation":[{"name":"Molecular Materials and Nanosystems Institute of Complex Molecular Systems Eindhoven University of Technology  P.O. Box 513 5600 MB Eindhoven The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9236-591X","authenticated-orcid":false,"given":"Stefan C. J.","family":"Meskers","sequence":"additional","affiliation":[{"name":"Molecular Materials and Nanosystems Institute of Complex Molecular Systems Eindhoven University of Technology  P.O. Box 513 5600 MB Eindhoven The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1920-5124","authenticated-orcid":false,"given":"Ren\u00e9 A. J.","family":"Janssen","sequence":"additional","affiliation":[{"name":"Molecular Materials and Nanosystems Institute of Complex Molecular Systems Eindhoven University of Technology  P.O. 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