From Event: SPIE Organic Photonics + Electronics, 2016
Non-ion additive hole-transporting material (HTM) of hydrophobic oligothiophene derivative named DR3TBDTT and triphenylamine derivative of N,N′-di(3-methylphenyl)-N,N-diphenyl-4,4-diaminobiphenyl (TPD) were used for the organic-inorganic hybrid perovskite solar cells. The power conversion efficiency (PCE) was comparable to the device using Li-TFSI doped spiro-MeOTAD. Moreover, the PCE decreases by only 10% after approximately 1000 h without encapsulation, which suggests an alternative method to improve the stability of perovskite solar cells[1-3 ].
Figure 1. Schematic illustration of the energy diagram of the device without lithium salts
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Lixin Xiao, "A hydrophobic hole transporting system to improve moisture stability of perovskite solar cells
(Conference Presentation)," Proc. SPIE 9942, Organic Photovoltaics XVII, 99420K (Presented at SPIE Organic Photonics + Electronics: August 31, 2016; Published: 2 November 2016); https://doi.org/10.1117/12.2235469.5168997873001.
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Study of self-shadowing effect as a simple means to realize nanostructured thin films and layers with special attentions to birefringent obliquely deposited thin films and photo-luminescent porous silicon