Enhanced Device Efficiency of Bilayered Inverted Organic Solar Cells Based on Photocurable P3HTs with a Light‐Harvesting ZnO Nanorod Array. Issue 6 (8th November 2013)

• Record Type: Journal Article
• Authors: Kim, Sehwan; Koh, Joo Hwan; Yang, Xu; Chi, Won Seok; Park, Chihyun; Leem, Jung Woo; Kim, Byeonggwan; Seo, Seogjae; Kim, Yuna; Yu, Jae Su; Kim, Jong Hak; Kim, Eunkyoung
• Is Part Of: Advanced energy materials. Volume 4:Issue 6(2014:Jun.)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2013-11-08
• Subjects: Energy harvesting -- Materials -- Periodicals; Energy conversion -- Materials -- Periodicals; Energy storage -- Materials -- Periodicals; Photovoltaics -- Periodicals; Fuel cells -- Periodicals; Thermoelectric materials -- Periodicals; 621.31
• DOI: 10.1002/aenm.201301338
• Languages: English
• ISSNs: 1614-6832

Abstract

<abstract abstract-type="main" xml:lang="en"> <title> <x xml:space="preserve">Abstract</x> </title> <p>Periodically patterned zinc oxide nanorod (P‐ZnO NR) layers are directly prepared from a pre‐patterned ZnO seed layer using a polydimethylsiloxane (PDMS) elastomeric stamp and then applied in inverted organic photovoltaic devices (IOPVs). The IOPV is assembled with a hydrothermally grown zinc oxide nanorod patterns with a (100) preferential crystal orientation as an electron transport buffer layer (ETBL) and photoactive bilayer consisting of methacylate end‐functionalized poly(3‐hexylthiophene) (P3HT‐MA), phenyl‐C₆₀‐butyric acid methyl ester (PC₆₀BM) and indene‐C₆₀ bis‐adduct (IC₆₀BA). In te IOPVs, the P‐ZnO NR is found to induce efficient light harvesting and the photocrosslinkable P3HTs afford solution‐processed bilayer architecture in IOPVs to show improved device stability and performance (PCE_max= 5.95%), as the bilayered structure allowed direct exciton splitting, thus reducing the charge recombination.</p> </abstract>