Investigation of the Effect of Trap States at the TiO2/Perovskite Interface in Perovskite Solar Cells Using a Drift-Diffusion Model and Including the Real 3D Morphology
Alessio Gagliardi a, Shengda Wang a, Tim Albes a
a Technische Universitaet Muenchen, Karlstrasse 45, Munich, 80333, Germany
International Conference on Hybrid and Organic Photovoltaics
Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV16)
Swansea, United Kingdom, 2016 June 29th - July 1st
Organizers: James Durrant, Henry Snaith and David Worsley
Oral, Alessio Gagliardi, presentation 110
Publication date: 28th March 2016

Perovskite solar cells [1] are emerging as a leading technology in the landscape of thin film solar cells. They have numerous advantages compared to other technologies as they have an excellent light absorption, low recombination rate and high open circuit voltage. Moreover, the possibility to grow the film of perovskite using different processes, from evaporation to solution process, opens relevant perspectives on the possible application of this technology.

An interesting question has been rised concerning the influence of trap states at the TiO2/Perovskite interface and the consequent charge accumulation [2]. In order to investigate this problem we have developed a simulation tool [3], based on drift-diffusion, that allows to compute the complete JV characteristics of the device including the real mesoporous morphology in 3D. This will cast light on the effects of interface and mesoporous morphology on the overall performance of the device.

[1] H. S. Jung et al., Small, 2015, 11, 10–25.

[2] G. Xing et al., Small, 2015, 11, 3606–3613.

[3] A. Gagliardi et al., Nanoscale, 2015, 7, 1136-1144.

 

 

 



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