Polymer solar cells with efficiency >10% enabled via a facile solution-processed Al-doped ZnO electron transporting layer

Handle URI:
http://hdl.handle.net/10754/617311
Title:
Polymer solar cells with efficiency >10% enabled via a facile solution-processed Al-doped ZnO electron transporting layer
Authors:
Jagadamma, Lethy Krishnan ( 0000-0003-4226-017X ) ; Al-Senani, Mohammed; Amassian, Aram ( 0000-0002-5734-1194 )
Abstract:
The present work details a facile and low-temperature (125C) solution-processed Al-doped ZnO (AZO) buffer layer functioning very effectively as electron accepting/hole blocking layer for a wide range of polymer:fullerene bulk heterojunction systems, and yielding power conversion efficiency in excess of 10% (8%) on glass (plastic) substrates. We show that ammonia addition to the aqueous AZO nanoparticle solution is a critically important step toward producing compact and smooth thin films which partially retain the aluminum doping and crystalline order of the starting AZO nanocrystals. The ammonia treatment appears to reduce the native defects via nitrogen incorporation, making the AZO film a very good electron transporter and energetically matched with the fullerene acceptor. Importantly, highly efficient solar cells are achieved without the need for additional surface chemical passivation or modification, which has become an increasingly common route to improving the performance of evaporated or solution-processed ZnO ETLs in solar cells.
KAUST Department:
Materials Science and Engineering (MSE)
Citation:
Lethy K. Jagadamma ; Mohammed Al-Senani and Aram Amassian " Polymer solar cells with efficiency >10% enabled via a facile solution-processed Al-doped ZnO electron transporting layer (Presentation Recording) ", Proc. SPIE 9567, Organic Photovoltaics XVI, 956719 (October 5, 2015)
Publisher:
SPIE-Intl Soc Optical Eng
Journal:
Organic Photovoltaics XVI
Conference/Event name:
Organic Photovoltaics XVI
Issue Date:
5-Oct-2015
DOI:
10.1117/12.2189025
Type:
Presentation
Additional Links:
http://proceedings.spiedigitallibrary.org/proceeding.aspx?doi=10.1117/12.2189025; http://bcove.me/9q6jdez8
Appears in Collections:
Presentations

Full metadata record

DC FieldValue Language
dc.contributor.authorJagadamma, Lethy Krishnanen
dc.contributor.authorAl-Senani, Mohammeden
dc.contributor.authorAmassian, Aramen
dc.date.accessioned2016-07-21T10:52:13Z-
dc.date.available2016-07-21T10:52:13Z-
dc.date.issued2015-10-05-
dc.identifier.citationLethy K. Jagadamma ; Mohammed Al-Senani and Aram Amassian " Polymer solar cells with efficiency >10% enabled via a facile solution-processed Al-doped ZnO electron transporting layer (Presentation Recording) ", Proc. SPIE 9567, Organic Photovoltaics XVI, 956719 (October 5, 2015)en
dc.identifier.doi10.1117/12.2189025-
dc.identifier.urihttp://hdl.handle.net/10754/617311-
dc.description.abstractThe present work details a facile and low-temperature (125C) solution-processed Al-doped ZnO (AZO) buffer layer functioning very effectively as electron accepting/hole blocking layer for a wide range of polymer:fullerene bulk heterojunction systems, and yielding power conversion efficiency in excess of 10% (8%) on glass (plastic) substrates. We show that ammonia addition to the aqueous AZO nanoparticle solution is a critically important step toward producing compact and smooth thin films which partially retain the aluminum doping and crystalline order of the starting AZO nanocrystals. The ammonia treatment appears to reduce the native defects via nitrogen incorporation, making the AZO film a very good electron transporter and energetically matched with the fullerene acceptor. Importantly, highly efficient solar cells are achieved without the need for additional surface chemical passivation or modification, which has become an increasingly common route to improving the performance of evaporated or solution-processed ZnO ETLs in solar cells.en
dc.publisherSPIE-Intl Soc Optical Engen
dc.relation.urlhttp://proceedings.spiedigitallibrary.org/proceeding.aspx?doi=10.1117/12.2189025en
dc.relation.urlhttp://bcove.me/9q6jdez8en
dc.titlePolymer solar cells with efficiency >10% enabled via a facile solution-processed Al-doped ZnO electron transporting layeren
dc.typePresentationen
dc.contributor.departmentMaterials Science and Engineering (MSE)en
dc.identifier.journalOrganic Photovoltaics XVIen
dc.conference.dateAugust 09, 2015en
dc.conference.nameOrganic Photovoltaics XVIen
dc.conference.locationSan Diego, California, United Statesen
kaust.authorJagadamma, Lethy K.en
kaust.authorAl-Senani, Mohammeden
kaust.authorAmassian, Aramen
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