2015•Journal of Materials Chemistry ARequires access

A two-terminal perovskite/perovskite tandem solar cell

Fangyuan Jiang, Tiefeng Liu, Bangwu Luo, Jinhui Tong, Fei Qin, Sixing Xiong, Zaifang Li, Yinhua Zhou

Abstract

The first bottom-up solution-processed perovskite–perovskite tandem solar cell has been successfully fabricated via an optimized charge recombination layer comprising spiro-OMeTAD/PEDOT:PSS/PEI/PCBM:PEI. The as-fabricated tandem device delivers an open voltage of up to 1.89 V, close to the sum of the two perovskite subcells.

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Key concepts: Tandem, Perovskite (structure), PEDOT:PSS, Materials science, Perovskite solar cell, Optoelectronics, Layer (electronics), Voltage