Jump to main content
Jump to site search

Issue 31, 2018
Previous Article Next Article

Noncovalent phosphorylation of graphene oxide with improved hole transport in high-efficiency polymer solar cells

Author affiliations

Abstract

Graphene oxide (GO) has been extensively applied as an alternative hole transport layer (HTL) of bulk heterojunction polymer solar cells (BHJ-PSCs) with the function of selectively transporting holes and blocking electrons, but suffers from low electrical conductivity. Herein, using phosphorus pentoxide (P2O5) dissolved in methanol as a precursor, we successfully modified GO via noncovalent phosphorylation for the first time, which showed improved hole transport in BHJ-PSCs compared to the pristine GO. As a result, BHJ-PSC devices based on noncovalently phosphorylated GO (P-GO) HTL show dramatically higher power conversion efficiencies (7.90%, 6.59%, 3.85% for PTB7:PC71BM, PBDTTT-C:PC71BM, P3HT:PC61BM, respectively) than those of the corresponding control devices based on the pristine GO HTL (6.28%, 5.07%, 2.78%), which are comparable to those of devices based on the most widely used HTL—poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS).

Graphical abstract: Noncovalent phosphorylation of graphene oxide with improved hole transport in high-efficiency polymer solar cells

Back to tab navigation

Supplementary files

Publication details

The article was received on 01 Apr 2018, accepted on 20 Jul 2018 and first published on 20 Jul 2018


Article type: Communication
DOI: 10.1039/C8NR02638F
Citation: Nanoscale, 2018,10, 14840-14846
  •   Request permissions

    Noncovalent phosphorylation of graphene oxide with improved hole transport in high-efficiency polymer solar cells

    X. Chen, Q. Liu, M. Zhang, H. Ju, J. Zhu, Q. Qiao, M. Wang and S. Yang, Nanoscale, 2018, 10, 14840
    DOI: 10.1039/C8NR02638F

Search articles by author

Spotlight

Advertisements