Proceedings of International Conference Asia-Pacific Hybrid and Organic Photovoltaics 2018 (AP-HOPV18)
DOI: https://doi.org/10.29363/nanoge.ap-hopv.2018.054
Publication date: 27th October 2017
A novel mesoporous ETL based on La doped BaSnO3 (LBSO) is investigated here. The LBSO nanoparticles are synthesized under relatively mild conditions and proved to be a suitable material for mesoporous ETL. After optimization, solar cells using mesoporous LBSO show the best power conversion efficiency of 15.1%.
A uniform, pinhole-free and incomplete pore filling in porous TiO2 film of PbI2-free perovskite layer was prepared by the sandwich structure MAI-PbI2-MAI precursor film. Compare to the conventional two-step method, the devices fabricated from the sandwich structure MAI-PbI2-MAI precursor films shown a dramatic improvement for all the performance parameters, and a promising efficiency of 17.8% was achieved.
A new class of hole-transporting materials (HTM) containing tetraphenylmethane (TPM) core have been developed. After thermal, charge carrier mobility, and contact angle tests, it was found that TPA-TPM (TPA: arylamine derivates side group) showed higher glass-transition temperature and larger water-contact angle than spiro-OMeTAD with comparable hole mobility.By adopting low pressure vapor assisted process (LP-VASP), we systematic studied the effect of the type of A cation, the type of X halide, and the structure on the photovoltaic properties. In LP-VASP, the evolution of crystal structure and mechanism of carriers transport showed many different results compared with that of the PSC prepared by solvent approaches. We achieved PCE of 17.40% in planar PSCs with mixed halide sources. There are some studies going on based on LP-VASP, such as the introduction the pseudohalogen into the structure of ABX3.
References
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