Electron Transfer from Triplet State of TIPS-Pentacene Generated by Singlet Fission Processes to CH3NH3PbI3 Perovskite

Sangsu Lee, Daesub Hwang, Seok Il Jung, Dongho Kim

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

To reveal the applicability of singlet fission processes in perovskite solar cell, we investigated electron transfer from TIPS-pentacene to CH3NH3PbI3 (MAPbI3) perovskite in film phase. Through the observation of the shorter fluorescence lifetime in TIPS-pentacene/MAPbI3 perovskite bilayer film (5 ns) compared with pristine MAPbI3 perovskite film (20 ns), we verified electron-transfer processes between TIPS-pentacene and MAPbI3 perovskite. Furthermore, the observation of singlet fission processes, a faster decay rate, TIPS-pentacene cations, and the analysis of kinetic profiles of the intensity ratio between 500 and 525 nm in the TA spectra of the TIPS-pentacene/MAPbI3 perovskite bilayer film indicate that electron transfer occurs from triplet state of TIPS-pentacene generated by singlet fission processes to MAPbI3 perovskite conduction band. We believe that our results can provide useful information on the design of solar cells sensitized by singlet fission processes and pave the way for new types of perovskite solar cells.

Original languageEnglish
Pages (from-to)884-888
Number of pages5
JournalJournal of Physical Chemistry Letters
Volume8
Issue number4
DOIs
Publication statusPublished - 2017 Feb 16

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Physical and Theoretical Chemistry

Fingerprint Dive into the research topics of 'Electron Transfer from Triplet State of TIPS-Pentacene Generated by Singlet Fission Processes to CH<sub>3</sub>NH<sub>3</sub>PbI<sub>3</sub> Perovskite'. Together they form a unique fingerprint.

  • Cite this