Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 12, Issue 9, Pages 10527-10534Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.9b22657
Keywords
stamping transfer; PEDOT:PSS; poly(ethyleneimine); semitransparent; flexible; perovskite solar cells
Funding
- National Research Foundation of Korea (NRF) under the Ministry of Science, ICT & Future Planning [2014R1A5A1009799]
- Technology Development Program to Solve Climate Change [2015M1A2A2055631]
- Global Frontier R&D Program of the Center for Multiscale Energy Systems [2018M3A6A7055631]
- Ministry of Trade, Industry & Energy, Republic of Korea (New & Renewable Energy Core Technology Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP)) [20183010013820]
- National Research Foundation of Korea [2014R1A5A1009799, 2012M3A6A7054855] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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A semitransparent flexible metal halide perovskite (MHP) solar cells were demonstrated by reproducible dry stamping transfer of a poly(3,4-ethylenedioxythiophene):poly(styrene sulfonic acid) (PEDOT:PSS, PH1000) transparent flexible top electrode onto poly(ethylene terephthalate) (PET)/indium tin oxide (ITO)/PEDOT:PSS (AI4083)/MHP/[6,6]-phenyl-C-61-butyric acid methyl ester (PCBM). The reproducible transfer of the PEDOT:PSS top electrode was enabled by the modification of PEDOT:PSS with poly(ethylene imine) (PEI)/2-methoxyethanol (2-MEA) solution. In addition, the PEI/2-MEA modification to PEDOT:PSS resulted in improved conductivity and reduced work function of the top electrode. Therefore, we could fabricate highly efficient flexible semitransparent MHP solar cells with >13% (active area = 1 cm(2)) power conversion efficiency.
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