التفاصيل البيبلوغرافية
| العنوان: |
Donor-Interacting Arylated Carbazole Self-Assembled Monolayer Enables Highly Efficient and Stable Organic Photovoltaics |
| المؤلفون: |
Wang, Yiwen, Jiang, Wenlin, Mei, Le, Chen, Xiankai, Sun, Min, Lin, Chieh-Ting, Zhang, Rui, Du, Gengxin, Qiu, Weiming, Yang, Xi, Fan, Qunping, Yip, Hin-Lap, Lin, Francis R., Jen, Alex K. -Y. |
| المصدر: |
Small. |
| مصطلحات موضوعية: |
charge extraction layer, molecular interaction, organic photovoltaics, photostability, self-assembled monolayer |
| الوصف: |
Carbazole-derived self-assembled monolayers (SAMs) are promising materials for hole-extraction layer (HEL) in conventional organic photovoltaics (OPVs). Here, a SAM Cbz-2Ph derived from 3,6-diphenylcarbazole is demonstrated. The large molecular dipole moment of Cbz-2Ph allows the modulation of electrode work function to facilitate hole extraction and maximize photovoltage, thus improving the OPV performance. Additionally, the flanking aryls of Cbz-2Ph help establish CH-pi interactions for forming a dense and well-organized SAM HEL and exhibit stronger van der Waals interactions with the donor PM6 than acceptor BTP-eC9. The stronger SAM-donor interactions modulate the PM6 distribution in PM6:BTP-eC9 bulk-heterojunction film, leading to PM6 enrichment near HEL to facilitate efficient hole extraction to the ITO anode in conventional p-i-n OPVs. Consequently, binary PM6:BTP-eC9-based devices incorporating the Cbz-2Ph HEL demonstrate an impressive efficiency of 19.18%. These cells also showcase excellent operational stability, with a T80 lifetime of approximate to 1260 h at the maximum power point, over 10 times longer than those using the traditional PEDOT:PSS HEL (T80 approximate to 96 h). Furthermore, the universal applicability of Cbz-2Ph as a HEL is evident through its successful implementation in PM6:BTP-eC9:L8-BO-F-based ternary devices and PM6:BTP-eC9-based printed OPV devices, achieving a PCE of 19.30% and 16.96%, respectively. |
| وصف الملف: |
print |
| URL الوصول: |
https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-211194 |
| قاعدة البيانات: |
SwePub |