https://scholars.lib.ntu.edu.tw/handle/123456789/371786
Title: | An effective bilayer cathode buffer for highly efficient small molecule organic solar cells | Authors: | Lin, H.-W. Kang, H.-W. Huang, Z.-Y. Chen, C.-W. Chen, Y.-H. Lin, L.-Y. Lin, F. Wong, K.-T. KEN-TSUNG WONG |
Keywords: | Cathode buffer; Electron transporting layer; Organic photovoltaics; Small molecule solar cells | Issue Date: | 2012 | Journal Volume: | 13 | Journal Issue: | 10 | Start page/Pages: | 1925-1929 | Source: | Organic Electronics: physics, materials, applications | Abstract: | Novel organic/ultrathin low work function metal bilayer cathode buffers for small molecule organic solar cells are proposed. Ultrathin low work function metal layers possess a high built-in electric field for effective carrier extraction and a high cathode reflectivity for maximum absorption in the photoactive layers. This leads to a significant increase of short circuit current density and fill factor of cells. By integrating this bilayer cathode buffer with DTDCTB:C60 small molecular heterojunction, the device exhibits a high power conversion efficiency of up to 5.28%, which is an improvement of 22% compared to a device with a traditional single organic layer buffer. © 2012 Elsevier B.V. All rights reserved. |
URI: | http://www.scopus.com/inward/record.url?eid=2-s2.0-84863187267&partnerID=MN8TOARS http://scholars.lib.ntu.edu.tw/handle/123456789/371786 |
DOI: | 10.1016/j.orgel.2012.05.049 | SDG/Keyword: | Cathodes; Electric fields; Heterojunction bipolar transistors; Heterojunctions; Molecules; Solar cells; Solar power generation; Work function; Built-in electric fields; Carrier extraction; Electron transporting layer; High power conversion; Organic photovoltaics; Photoactive layers; Small molecules; Small-molecule organic solar cells; Organic solar cells |
Appears in Collections: | 化學系 |
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