Novel wide-bandgap non-fullerene acceptors for efficient tandem organic solar cells
Nugroho, Ferry Anggoro Ardy
Le Corre, Vincent M.
Anthopoulos, Thomas D.
KAUST DepartmentAli I. Al-Naimi Petroleum Engineering Research Center (ANPERC)
Department of Chemistry, Centre for Plastic Electronics, Imperial College London London W12 0BZ Email: Yuliar.firstname.lastname@example.org;email@example.com
Department of Physics, Chalmers University of Technology Göteborg 412 96 Email: Yuliar.firstname.lastname@example.org;email@example.com
KAUST Solar Center (KSC)
King Abdullah University of Science and Technology (KAUST), KAUST Solar Center (KSC), Division of Physical Sciences and Engineering Thuwal 23955-6900 Kingdom of Saudi Arabia Email: Yuliar.firstname.lastname@example.org;email@example.com
Material Science and Engineering
Material Science and Engineering Program
Physical Science and Engineering (PSE) Division
University of Groningen, Zernike Institute for Advanced Materials Nijenborgh 4 Groningen 9747 AG Email: Yuliar.firstname.lastname@example.org;email@example.com
Embargo End Date2020-12-09
Permanent link to this recordhttp://hdl.handle.net/10754/661472
MetadataShow full item record
AbstractThe power conversion efficiency (PCE) of tandem organic photovoltaics (OPVs) is currently limited by the lack of suitable wide-bandgap materials for the front-cell. Here, two new acceptor molecules, namely IDTA and IDTTA, with optical bandgaps (Eoptg) of 1.90 and 1.75 eV, respectively, are synthesized and studied for application in OPVs. When PBDB-T is used as the donor polymer, single-junction cells with PCE of 7.4%, for IDTA, and 10.8%, for IDTTA, are demonstrated. The latter value is the highest PCE reported to date for wide-bandgap (Eoptg ≥ 1.7 eV) bulk-heterojunction OPV cells. The higher carrier mobility in IDTTA-based cells leads to improved charge extraction and higher fill-factor than IDTA-based devices. Moreover, IDTTA-based OPVs show significantly improved shelf-lifetime and thermal stability, both critical for any practical applications. With the aid of optical-electrical device modelling, we combined PBDB-T:IDTTA, as the front-cell, with PTB7-Th:IEICO-4F, as the back-cell, to realize tandem OPVs with open circuit voltage of 1.66 V, short circuit current of 13.6 mA cm-2 and a PCE of 15%; in excellent agreement with our theoretical predictions. The work highlights IDTTA as a promising wide-bandgap acceptor for high-performance tandem OPVs.
CitationFirdaus, Y., He, Q., Lin, Y., Nugroho, F. A. A., Le Corre, V. M., Yengel, E., … Anthopoulos, T. D. (2020). Novel wide-bandgap non-fullerene acceptors for efficient tandem organic solar cells. Journal of Materials Chemistry A, 8(3), 1164–1175. doi:10.1039/c9ta11752k
SponsorsThis publication is based upon work supported by the King Abdullah University of Science and Technology (KAUST) Office of Sponsored Research (OSR) under Award No: OSR-2018-CARF/ CCF-3079. We thank the China Scholarship Council (CSC) via the CSC Imperial Scholarship and the Royal Society and the Wolfson Foundation (for Royal Society Wolfson Fellowship). C. L. acknowledges financial support from the Swedish Foundation for Strategic Research Project RMA15-0052.
PublisherRoyal Society of Chemistry (RSC)
JournalJournal of Materials Chemistry A