Enhanced efficiency and stability of polymer solar cells using solution-processed nickel oxide as hole transport material

Shanmugam Parthiban, Seungmin Kim, Vellaiappillai Tamilavan, Jihoon Lee, Insoo Shin, Yuvaraj Dhayalan, Yun Kyung Jung, Myung Ho Hyun, Jung Hyun Jeong, Sung Heum Park

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)
228 Downloads (Pure)

Abstract

Solution-processed nickel oxide (s-NiOx) was synthesized for use as hole-transport layers (HTLs) in the fabrication of polymer solar cell (PSC) devices. The s-NiOx thin-films were deposited using spin-coating and post-annealed at 300 °C, 400 °C, or 500 °C. With increased annealing temperature, the nickel acetate precursor decomposes more fully and forms s-NiOx films that show larger crystalline grain sizes with lower root mean square surface roughness. Bulk heterojunction solar cells fabricated with the new random polymer RP(BDT-PDBT) and [6,6]-phenyl-C70-butyric acid methyl ester (PC70BM) using s-NiOx as HTLs exhibit a 4.46% enhancement in power conversion efficiency and better stability compared to conventional PSCs using poly (3,4-ethylenedioxythiophene):poly(styrene sulfonate) as HTLs. We believe that the solution-processable and highly stable s-NiOx could be a potential alternative for functional interface materials in optoelectronic devices.
Original languageEnglish
Pages (from-to)1232-1237
JournalCurrent Applied Physics
Volume17
Issue number10
Early online date12 Jun 2017
DOIs
Publication statusPublished - 1 Oct 2017

Keywords

  • Polymer solar cell
  • Hole transport layer
  • Nickel oxide

Fingerprint

Dive into the research topics of 'Enhanced efficiency and stability of polymer solar cells using solution-processed nickel oxide as hole transport material'. Together they form a unique fingerprint.

Cite this