التفاصيل البيبلوغرافية
| العنوان: |
Mixed Solvent Engineering for Morphology Optimization of the Electron Transport Layer in Perovskite Photovoltaics |
| المؤلفون: |
SungWon Cho (11872040), Padmini Pandey (8625504), Jinwoo Park (1344966), Tae-Woo Lee (1275729), Dong-Won Kang (4216594) |
| سنة النشر: |
2021 |
| المجموعة: |
Smithsonian Institution: Digital Repository |
| مصطلحات موضوعية: |
Biophysics, Biochemistry, Pharmacology, Biotechnology, Ecology, Cancer, Space Science, Chemical Sciences not elsewhere classified, Physical Sciences not elsewhere classified, Information Systems not elsewhere classified, reduced surface roughness, reduced lifetime τ, power conversion efficiency, electron transport layer, efficient charge transfer, charge carrier recombination, butyrate methyl ester, better film coverage, mixed solvent processing, pcbm layer fabrication, avg , 5 , mixed solvent engineering, perovskite solar cells, 6 ]- phenyl, mixed solvent system, etl interface leads, 0 , solvent engineering, pcbm ) |
| الوصف: |
The interfacial charge transport dynamics in perovskite solar cells (PSCs) play a significant role for achieving improved device efficiency. We have shown here the morphology optimization of the electron transport layer (ETL), i.e., [6,6]-phenyl-C61-butyrate methyl ester (PCBM), through solvent engineering by introducing a mixed solvent system (chlorobenzene (CB) and dichlorobenzene (DCB)) in PCBM layer fabrication. The results showed an improvement in morphology and better film coverage with reduced surface roughness and pinholes in ETL by replacing half of CB with a high boiling point solvent in the CB 0.5 –DCB 0.5 system. Strong quenching in steady-state photoluminescence (PL) indicates that an improved interaction in the perovskite/ETL interface leads to efficient charge transfer, which has been further realized through time-resolved PL (TR-PL) measurement with reduced lifetime τ avg ∼2.35 ns. The power conversion efficiency (PCE) in PSCs improved from 17.2% for CB 1.0 –DCB 0 to 18.46% for CB 0.5 –DCB 0.5 mixed solvent treated ETL. Furthermore, this mixed solvent processing for ETL strengthened the perovskite/ETL interface and minimized the charge carrier recombination, which seems to be a convenient mixed solvent strategy for high-performance PSCs. |
| نوع الوثيقة: |
article in journal/newspaper |
| اللغة: |
unknown |
| Relation: |
https://figshare.com/articles/journal_contribution/Mixed_Solvent_Engineering_for_Morphology_Optimization_of_the_Electron_Transport_Layer_in_Perovskite_Photovoltaics/17429432 |
| DOI: |
10.1021/acsaem.1c02913.s001 |
| الاتاحة: |
https://doi.org/10.1021/acsaem.1c02913.s001 |
| Rights: |
CC BY-NC 4.0 |
| رقم الانضمام: |
edsbas.37C47807 |
| قاعدة البيانات: |
BASE |