التفاصيل البيبلوغرافية
| العنوان: |
Strong light-matter interactions in heterostructures of atomically thin films |
| المؤلفون: |
Britnell, Líam, Ribeiro, R. M., Eckmann, A., Jalil, R., Belle, B. D., Mishchenko, A., Kim, Y.-J., Gorbachev, R. V., Georgiou, T., Morozov, S. V., Grigorenko, A. N., Geim, A. K., Casiraghi, C., Castro Neto, A. H., Novoselov, K. S. |
| المساهمون: |
Universidade do Minho |
| بيانات النشر: |
American Association for the Advancement of Science, 2013. |
| سنة النشر: |
2013 |
| مصطلحات موضوعية: |
Science & Technology |
| الوصف: |
The isolation of various two-dimensional (2D) materials, and the possibility to combine them in vertical stacks, has created a new paradigm in materials science: heterostructures based on 2D crystals. Such a concept has already proven fruitful for a number of electronic applications in the area of ultrathin and flexible devices. Here we expand the range of such structures to photoactive ones by utilizing semiconducting transition metal dichalcogenides (TMDC)/graphene stacks. Van Hove singularities in the electronic density of states of TMDC guarantees enhanced light-matter interactions, leading to enhanced photon absorption and electron-hole creation (which are collected in transparent graphene electrodes). This allows development of extremely efficient flexible photovoltaic devices with photo-responsivity above 0.1 A/W (corresponding to an external quantum efficiency of above 30%). |
| الوصف (مترجم): |
FEDER through the COMPETE Program Strategic Project PEST-C/FIS/UI607/2011 |
| نوع الوثيقة: |
journal article |
| وصف الملف: |
application/msword |
| اللغة: |
English |
| العلاقة: |
Science 340, 1311 (2013); 0036-8075; http://www.sciencemag.org/content/340/6138/1311.full.htmlTest |
| DOI: |
10.1126/science.1235547 |
| الإتاحة: |
http://hdl.handle.net/1822/24485Test |
| حقوق: |
open access |
| رقم الانضمام: |
rcaap.com.repositorium.repositorium.sdum.uminho.pt.1822.24485 |
| قاعدة البيانات: |
RCAAP |
