Inverted perovskite/silicon V-shaped tandem solar cells with 27.6% efficiency via self-assembled monolayer-modified nickel oxide layer

Abstract

A novel inverted perovskite/silicon V-shaped tandem solar cell is proposed based on the elaborate design of photon matching and management, in which the underutilized above-bandgap photons and unutilized below-bandgap photons...

Chemically suppressing redox reaction at the NiOx/perovskite interface in narrow bandgap perovskite solar cells to exceed a power conversion efficiency of 20%

“…28 Some inert polymers and small molecules were deposited on NiO x to separate both and to avoid their direct contact physically. [29][30][31][32][33][34] Moreover, Wang et al came up with an in situ bifacial passivation strategy using HI to simultaneously reduce the Ni 3+ /Ni 2+ ratio and increase the crystallization of perovskite. 35 In NBG PSCs, however, Sn 2+ is easier to be oxidized and would similarly show deteriorated performance.…”

Stability of perovskite solar cells: issues and prospects

“… 154 In addition, the perovskite/Si tandem exhibits the greatest promise of all the varieties. Inverted perovskite/silicon V-shaped tandem solar cells with a PCE of 27.6% were reported by Zheng et al Beside, for monolithic PSC/Silicon tandem solar cells, 156 Al-Ashouri et al reported a PCE of 29.15%. 155 However, the equivalent parameter used in the PSC/Si tandem cells is still significantly lower than that of the high-performing single junction c-Si cells.…”

Efficiency improvement of semi-transparent perovskite solar cellsviacrystallinity enhancement

“…4 In addition, ST-PSCs can also form tandem solar cells with silicon solar cells accounting for a large percentage of the photovoltaic market to maximize the overall efficiency of the device. [5][6][7] MAPbI 3 is the most representative and commonly used material as the light-absorbing layer in ST-PSCs because of its suitable optical bandgap and the appearance of the semi-transparent lm. However, directly using MAPbI 3 as the active layer of the cells brings some inevitable drawbacks: (i) poor lm quality such as pinholes and low coverage, (ii) reduced short circuit current density (J sc ) and ll factor (FF) due to the extremely thin perovskite lm, and (iii) the transmittance of the device cannot meet the requirements of commercial applications.…”