High-efficiency and air-stable P3HT-based polymer solar cells with a new non-fullerene acceptor
Ashraf, Raja Shahid
Yousaf, Syeda Amber
Nielsen, Christian B.
Dimitrov, Stoichko D.
Alamoudi, Maha A
Brabec, Christoph J.
Durrant, James R.
KAUST DepartmentChemical Science Program
KAUST Solar Center (KSC)
Material Science and Engineering Program
Physical Science and Engineering (PSE) Division
Online Publication Date2016-06-09
Print Publication Date2016-09
Permanent link to this recordhttp://hdl.handle.net/10754/612973
MetadataShow full item record
AbstractSolution-processed organic photovoltaics (OPV) offer the attractive prospect of low-cost, light-weight and environmentally benign solar energy production. The highest efficiency OPV at present use low-bandgap donor polymers, many of which suffer from problems with stability and synthetic scalability. They also rely on fullerene-based acceptors, which themselves have issues with cost, stability and limited spectral absorption. Here we present a new non-fullerene acceptor that has been specifically designed to give improved performance alongside the wide bandgap donor poly(3-hexylthiophene), a polymer with significantly better prospects for commercial OPV due to its relative scalability and stability. Thanks to the well-matched optoelectronic and morphological properties of these materials, efficiencies of 6.4% are achieved which is the highest reported for fullerene-free P3HT devices. In addition, dramatically improved air stability is demonstrated relative to other high-efficiency OPV, showing the excellent potential of this new material combination for future technological applications.
CitationHigh-efficiency and air-stable P3HT-based polymer solar cells with a new non-fullerene acceptor 2016, 7:11585 Nature Communications
SponsorsWe thank BASF for partial financial support, as well as EPSRC Projects EP/G037515/1 and EP/M023532/1, EC FP7 Project SC2 (610115), EC FP7 Project ArtESun (604397), EC FP7 Project POLYMED (612538), Project Synthetic carbon allotropes project SFB 953 and the King Abdullah University of Science and Technology (KAUST). George Richardson is gratefully acknowledged for his assistance with optical microscopy. M.A. thanks Z. Kan and Y. Firdaus for helpful discussions.
- Reducing the efficiency-stability-cost gap of organic photovoltaics with highly efficient and stable small molecule acceptor ternary solar cells.
- Authors: Baran D, Ashraf RS, Hanifi DA, Abdelsamie M, Gasparini N, Röhr JA, Holliday S, Wadsworth A, Lockett S, Neophytou M, Emmott CJ, Nelson J, Brabec CJ, Amassian A, Salleo A, Kirchartz T, Durrant JR, McCulloch I
- Issue date: 2017 Mar
- Molecular design of photovoltaic materials for polymer solar cells: toward suitable electronic energy levels and broad absorption.
- Authors: Li Y
- Issue date: 2012 May 15
- Diketopyrrolopyrrole-based π-bridged donor-acceptor polymer for photovoltaic applications.
- Authors: Li W, Lee T, Oh SJ, Kagan CR
- Issue date: 2011 Oct
- Fullerene-bisadduct acceptors for polymer solar cells.
- Authors: Li Y
- Issue date: 2013 Oct
- A rhodanine flanked nonfullerene acceptor for solution-processed organic photovoltaics.
- Authors: Holliday S, Ashraf RS, Nielsen CB, Kirkus M, Röhr JA, Tan CH, Collado-Fregoso E, Knall AC, Durrant JR, Nelson J, McCulloch I
- Issue date: 2015 Jan 21