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미래를 창조하는 포스텍 화학공학과

Surface modified fullerene electron transport layers for stable and re…

Year of publication
Title of paper
Surface modified fullerene electron transport layers for stable and reproducible flexible perovskite solar cells
Author
[박태호교수 연구실]
Publication in journal
Nano Energy 49, p324-332, 201807
Publication date
201807

[Abstract]

We report flexible planar perovskite solar cells with robust electron-transport layers (ETLs) processed at low
temperature. A poly(allylamine) (PAA; 0.08 wt%) solution was deposited on a C60 layer and heated at 150 °C for
60 s, resulting in the formation of an insoluble robust C60–PAA electron-transport layer (ETL) on the flexible
substrate. The flexible planar perovskite solar cell with the C60–PAA ETL exhibited excellent properties with 83%
efficiency retention (η=15.2% without hysteresis) after 600 cycles of bending. This performance is superior to
that of the flexible device with a C60 ETL fabricated without the use of PAA (65% efficiency retention; η=9.8%
with some hysteresis).
 

DOI: 10.1016/j.nanoen.2018.04.068

LINK: https://www.sciencedirect.com/science/article/pii/S2211285518302969