Enhanced device efficiency of bilayered inverted organic solar cells based on photocurable P3HTs with a light-harvesting ZnO nanorod array

Sehwan Kim, Joo Hwan Koh, Xu Yang, Won Seok Chi, Chihyun Park, Jung Woo Leem, Byeonggwan Kim, Seogjae Seo, Yuna Kim, Jae Su Yu, Jong Hak Kim, Eunkyoung Kim

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

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-C 60-butyric acid methyl ester (PC60BM) and indene-C 60 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 (PCEmax= 5.95%), as the bilayered structure allowed direct exciton splitting, thus reducing the charge recombination. Zinc oxide nanorods (P-ZnO NR) are patterned and applied in inverted organic photovoltaic devices (IOPV) as an electron transport buffer layer (ETBL) for the light harvesting effect. A 16% increase in device performance and long operational stability is observed resulting from the introduction of a periodically patterned zinc oxide nanorod layer, and the formation of photoactive layer consisting of photo-crosslinkable methacylate end-functionalized poly(3-hexyl thiophene) (P3HT-MA) and phenyl-C 60-butyric acid methyl ester (PC60BM) with indene-C 60 bis-adduct (IC60BA).

Original languageEnglish
Article number1301338
JournalAdvanced Energy Materials
Volume4
Issue number6
DOIs
Publication statusPublished - 2014 Apr 22

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)

Fingerprint Dive into the research topics of 'Enhanced device efficiency of bilayered inverted organic solar cells based on photocurable P3HTs with a light-harvesting ZnO nanorod array'. Together they form a unique fingerprint.

  • Cite this