Improved ambient-stable perovskite solar cells enabled by a hybrid polymeric electron-transporting layer
- Univ. of Washington, Seattle, WA (United States)
- Hong Kong Univ. of Science and Technology, Kowloon (Hong Kong)
- South China Univ. of Technology, Guangzhou (People's Republic of China)
In this study, an efficient inverted perovskite solar cell with decent ambient stability is successfully demonstrated by employing an n-type polymer, poly{[N,N’-bis(2-octyldodecyl)- 1,4,5,8-naphthalene diimide-2,6-diyl]-alt-5,5’-(2,2’-bithiophene)} (N2200), as the electron-transporting layer (ETL). The device performance can be further enhanced from a power conversion efficiency (PCE) of 15 to 16.8% by tailoring the electronic properties of N2200 with a polymeric additive, poly[9,9-bis(6’- (N,N’-diethylamino)propyl)-fluorene-alt-9,9-bis(3-ethyl(oxetane- 3-ethyloxy)-hexyl) fluorene] (PFN-Ox). More importantly, the device derived from this hybrid ETL can maintain good ambient stability inherent from the pristine N2200 ETL, for which 60–70% of initial PCE can be retained after being stored in air with 10–20% humidity for 45 days.
- Research Organization:
- Univ. of Washington, Seattle, WA (United States)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE)
- Contributing Organization:
- This work was supported by the National Science Foundation (DMR-1608279), the Office of Naval Research (N00014-14-1-0246), the Asian Office of Aerospace R&D (FA2386-15-1-4106), and the Department of Energy SunShot (DE-EE 0006710). A.J. thanks the Boeing-Johnson Foundation for financial support. H.Y. thanks Hong Kong Innovation and Technology Commission for the support through ITC-CNERC14SC01.
- Grant/Contract Number:
- EE0006710
- OSTI ID:
- 1343594
- Report Number(s):
- DOE-UW-Jen-26
- Journal Information:
- ChemSusChem, Vol. 9, Issue 18; ISSN 1864-5631
- Publisher:
- ChemPubSoc EuropeCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Molecular Aggregation of Naphthalene Diimide(NDI) Derivatives in Electron Transport Layers of Inverted Perovskite Solar Cells and Their Influence on the Device Performance
|
journal | November 2019 |
Efficient Inverted Perovskite Solar Cells by Employing N‐Type (D–A 1 –D–A 2 ) Polymers as Electron Transporting Layer
|
journal | October 2018 |
Electron-Transport Materials in Perovskite Solar Cells
|
journal | July 2018 |
An integrated approach towards the fabrication of highly efficient and long-term stable perovskite nanowire solar cells
|
journal | January 2017 |
Similar Records
All-Polymer Solar Cell Performance Optimized via Systematic Molecular Weight Tuning of Both Donor and Acceptor Polymers
Mixed-flow design for microfluidic printing of two-component polymer semiconductor systems