Repository logo

Infoscience

  • English
  • French
Log In
Logo EPFL, École polytechnique fédérale de Lausanne

Infoscience

  • English
  • French
Log In
  1. Home
  2. Academic and Research Output
  3. Journal articles
  4. Cut from the Same Cloth: Enamine-Derived Spirobifluorenes as Hole Transporters for Perovskite Solar Cells
 
research article

Cut from the Same Cloth: Enamine-Derived Spirobifluorenes as Hole Transporters for Perovskite Solar Cells

Vaitukaityte, Deimante
•
Momblona, Cristina  
•
Rakstys, Kasparas
Show more
August 10, 2021
Chemistry Of Materials

To attain commercial viability, perovskite solar cells (PSCs) have to be reasonably priced, highly efficient, and stable for a long period of time. Although a new record of a certified power conversion efficiency (PCE) value over 25% was achieved, PSC performance is limited by the lack of hole-transporting materials (HTMs), which extract positive charges from the light-absorbing perovskite layer and carry them to the electrode. Here, we report spirobifluorene-based HTMs with finely tuned energy levels, high glass-transition temperature, and excellent charge mobility and conductivity enabled by molecularly engineered enamine arms. HTMs are synthesized using simple condensation chemistry, which does not require costly catalysts, inert reaction conditions, and time-consuming product purification procedures. Enamine-derived HTMs allow the fabrication of PSCs reaching a maximum PCE of 19.2% and stability comparable to spiro-OMeTAD. This work demonstrates that simple enamine condensation reactions could be used as a universal path to obtain HTMs for highly efficient and stable PSCs.

  • Details
  • Metrics
Type
research article
DOI
10.1021/acs.chemmater.1c01486
Web of Science ID

WOS:000685206200024

Author(s)
Vaitukaityte, Deimante
Momblona, Cristina  
Rakstys, Kasparas
Sutanto, Albertus Adrian  
Ding, Bin  
Igci, Cansu  
Jankauskas, Vygintas
Gruodis, Alytis
Malinauskas, Tadas
Asiri, Abdullah M.
Show more
Date Issued

2021-08-10

Publisher

AMER CHEMICAL SOC

Published in
Chemistry Of Materials
Volume

33

Issue

15

Start page

6059

End page

6067

Subjects

Chemistry, Physical

•

Materials Science, Multidisciplinary

•

Chemistry

•

Materials Science

•

low-cost

•

highly efficient

•

high-performance

•

mobilities

•

stability

•

design

•

layer

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LCOM  
GMF  
Available on Infoscience
August 28, 2021
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/180978
Logo EPFL, École polytechnique fédérale de Lausanne
  • Contact
  • infoscience@epfl.ch

  • Follow us on Facebook
  • Follow us on Instagram
  • Follow us on LinkedIn
  • Follow us on X
  • Follow us on Youtube
AccessibilityLegal noticePrivacy policyCookie settingsEnd User AgreementGet helpFeedback

Infoscience is a service managed and provided by the Library and IT Services of EPFL. © EPFL, tous droits réservés