Acene-based organic semiconductors for organic light-emitting diodes and perovskite solar cells
| Autor: | Hong Duc Pham, Hongwei Hu, Fu-Lung Wong, Hongxia Wang, Nunzio Motta, Sergei Manzhos, Chun-Sing Lee, Krishna Feron, Yeng Ming Lam, Prashant Sonar, Wen-Cheng Chen |
|---|---|
| Přispěvatelé: | School of Materials Science & Engineering |
| Rok vydání: | 2018 |
| Předmět: |
Light-emitting Diodes
Brightness Materials science 02 engineering and technology 010402 general chemistry 01 natural sciences 7. Clean energy Green emission chemistry.chemical_compound Aniline Materials Chemistry OLED Acene Diode Perovskite (structure) Materials [Engineering] business.industry General Chemistry 021001 nanoscience & nanotechnology 0104 chemical sciences Organic semiconductor chemistry Optoelectronics Acene-based Organic Semiconductors 0210 nano-technology business |
| Zdroj: | Journal of Materials Chemistry C. 6:9017-9029 |
| ISSN: | 2050-7534 2050-7526 |
| DOI: | 10.1039/c8tc01956h |
| Popis: | In this work, three novel acene-based organic semiconductors, including 2,7-bis(trimethylstannyl)naphtho[2,1-b:6,5-b′]dithiophene (TPA-NADT-TPA), 4,4′-(anthracene-2,6-diyl)bis(N,N-bis(4-methoxyphenyl)aniline) (TPA-ANR-TPA) and N2,N2,N6,N6-tetrakis(4-methoxyphenyl)anthracene-2,6-diamine (DPA-ANR-DPA), are designed and synthesized for use in organic light-emitting diodes (OLEDs) and perovskite solar cells (PSCs). In OLEDs, devices based on TPA-NADT-TPA, TPA-ANR-TPA and DPA-ANR-DPA showed pure blue, blue green, and green emission, respectively. Also, the maximum brightness of the devices with a turn-on voltage of 3.8 V reached 8682 cd m−2 for TPA-NADT-TPA, 11 180 cd m−2 for TPA-ANR-TPA, and 18 600 cd m−2 for DPA-ANR-DPA. These new materials are also employed as hole transporting materials (HTMs) in inverted PSCs, where they were used without additives. The inverted devices based on these HTMs achieved an overall efficiency of 10.27% for TPA-NADT-TPA, 7.54% for TPA-ANR-TPA, and 6.05% for DPA-ANR-DPA under identical conditions (AM 1.5G and 100 mW cm−2). While the PSCs with TPA-NADT-TPA as the HTM achieved the highest efficiency, the DPA-ANR-DPA-based OLED devices showed the brightest emission and efficiency. Based on the obtained promising performance, it is clear that this molecular design presents a new research strategy to develop materials that can be used in multiple types of devices. MOE (Min. of Education, S’pore) |
| Databáze: | OpenAIRE |
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