Electronic Resource
Ultrathin Light-Emitting Diodes with External Efficiency over 26% Based on Resurfaced Perovskite Nanocrystals
| العنوان: | Ultrathin Light-Emitting Diodes with External Efficiency over 26% Based on Resurfaced Perovskite Nanocrystals |
|---|---|
| المؤلفون: | Wan, Q, Zheng, W, Zou, C, Carulli, F, Zhang, C, Song, H, Liu, M, Zhang, Q, Lin, L, Kong, L, Li, L, Brovelli, S, Qun Wan, Weilin Zheng, Chen Zou, Francesco Carulli, Congyang Zhang, Haili Song, Mingming Liu, Qinggang Zhang, Lih Y. Lin, Long Kong, Liang Li, Sergio Brovelli |
| بيانات النشر: | American Chemical Society country:US 2023 |
| نوع الوثيقة: | Electronic Resource |
| مستخلص: | Light-emitting diodes based on perovskite nanocrystals (PNCs-LEDs) have gained great interest for next-generation display and lighting technologies prized for their color purity, high brightness, and luminous efficiency which approach the intrinsic limit imposed by light extraction from the device structure. Although the time is ripe for the development of effective light outcoupling strategies to further boost the device performance, this technologically relevant aspect of PNC-LEDs is still without a definitive solution. Here, following theoretical guidelines and without the integration of complex photonic structures, we realize stable PNC-LEDs with external quantum efficiency (EQE) as high as 26.7%. Key to such performance is channeling the recombination zone in PNC emissive layers as thin as 10 nm, which we achieve by finely balancing charge transport using CsPbBr3 PNCs resurfaced with a nickel oxide layer. The ultrathin approach is general and, in principle, applicable to other perovskite nanostructures for fabricating highly efficient, color-tunable transparent LEDs. |
| مصطلحات الفهرس: | Light-emitting diodes, Perovskite nanocrystals, Resurfacing, Otucoupling, info:eu-repo/semantics/article |
| URL: | info:eu-repo/semantics/altIdentifier/wos/WOS:000916931000001 volume:8 issue:2 firstpage:927 lastpage:934 numberofpages:8 journal:ACS ENERGY LETTERS |
| الاتاحة: | Open access content. Open access content info:eu-repo/semantics/openAccess |
| ملاحظة: | ELETTRONICO English |
| Other Numbers: | ITBAO oai:boa.unimib.it:10281/400923 10.1021/acsenergylett.2c02802 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85146183146 1376721875 |
| المصدر المساهم: | BICOCCA OPEN ARCH From OAIster®, provided by the OCLC Cooperative. |
| رقم الانضمام: | edsoai.on1376721875 |
| قاعدة البيانات: | OAIster |
| الوصف غير متاح. |