Wang H, Stubhan T, Osvet A, Litzov I, Brabec C (2012)
Publication Language: English
Publication Status: Published
Publication Type: Journal article, Original article
Publication year: 2012
Book Volume: 105
Pages Range: 196-201
DOI: 10.1016/j.solmat.2012.06.005
The spectral sensitivity of organic solar cells can be sensitized in the near-IR and IR by incorporating Yb/Er-doped MoO up-conversion nanocomposites. Poly-3-hexyl thiophene (P3HT) and [6,6] phenyl C butyric acid methyl ester (PC BM) were chosen for the active layer. Yb/Er-doped MoO nanoparticles with dual functionality were solution processed as charge selective interface layer. On the one hand, the electrical functionality of MoO as hole extraction layer is demonstrated. On the other hand, up-conversion emission from Yb sensitized Er dopants in the MoO nanoparticles is observed. Since the photocurrent generated from up-conversion with 975 nm excitation was found to be in competition with photocurrent contributions from a charge transfer complex absorbing also in the near IR, up-conversion from a Yb/Er doped MoO layer within an organic solar cell is proven spectroscopically and demonstrated by analyzing the photocurrent response of the Yb/Er doped cell and the undoped cell to the excitation intensity. The concept to integrate up-conversion functionality into metal oxide (MOx) based charge extraction layer suggests a promising and practical pathway for improving the near IR and IR sensitivity of thin film solar cells. © 2012 Elsevier B.V.
APA:
Wang, H., Stubhan, T., Osvet, A., Litzov, I., & Brabec, C. (2012). Up-conversion semiconducting MoO 3:Yb/Er nanocomposites as buffer layer in organic solar cells. Solar Energy Materials and Solar Cells, 105, 196-201. https://dx.doi.org/10.1016/j.solmat.2012.06.005
MLA:
Wang, Hao, et al. "Up-conversion semiconducting MoO 3:Yb/Er nanocomposites as buffer layer in organic solar cells." Solar Energy Materials and Solar Cells 105 (2012): 196-201.
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