Abstract
We employed organic heterojunction films as all-organic connecting units to fabricate tandem organic photovoltaic cells by continuous deposition. The all-organic connecting units with a better transparence and a lower sublimation temperature became an effective recombination center for electrons and holes photogenerated in front cell and back cell, respectively. Tunnel mechanism was proposed to explain the combination of photogenerated carrier. In the optimized tandem solar cell in which tin phthalocyanine dichloride/copper hexadecafluorophthalocyanine heterojunction is used as connecting units, the open-circuit voltage of 1.04 V is double of the single unit cells, and the PCE was increased by 60%, reaching to 1.8%. Therefore, it is an effective way to use the organic heterojunction films as connecting units in organic tandem cells to improve the device performance dramatically.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Similar Papers
More From: Journal of Applied Physics
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.