How to prevent lead leakage in perovskite solar cells?

Chen, S. et al. Preventing lead leakage with built-in resin layers for sustainable perovskite solar cells. Nat. Sustain. 4, 636–643 (2021). This work implemented a lead-adsorbing scaffold in PSCs, which is more effective in suppressing lead leakage than the device with the coating at the exterior of a glass surface. Li, X. et al.

How to eliminate leakage current in solar PV array system?

There are two distinct methods to eliminate the leakage current in the solar PV array system: (i) obstruct the leakage current, (ii) reduce the variation/constant common-mode voltage. The additional diodes/switches are incorporated in the system to obstruct the leakage current by disconnecting the PV array from the grid side network.

Can perovskite photovoltaic products be deployed with minimal PB leakage?

These findings strongly suggest that perovskite photovoltaic products can be deployed with minimal Pb leakage if appropriate encapsulation is employed. Lead leakage from damaged perovskite solar cells poses a challenge to the deployment of such technology.

How do leakage currents affect PV module efficiency?

This will induce leakage currents flowing through the module package potentially leading to significant PV module efficiency loss. In standard p-type c-Si PV modules, leakage currents can flow from the module frame to the solar cells along several different pathways (Fig. 2), which are depicted as follows:12,13,44,48–50

How to prevent lead leakage in PSCs?

In this respect, lessons from hydrogel of polyamides 41 or self-bundling of CNTs 34 to precipitate the lead products from water, and integration of the perovskite layer within the device to prevent its delamination and fragmentation in environmental water, are desirable. Lead leakage should be avoided when considering the full life cycle of PSCs.

Can self-healing encapsulations reduce lead leakage from damaged perovskite solar cells?

Lead leakage from damaged perovskite solar cells poses a challenge to the deployment of such technology. Here, Jiang, Qiu and co-workers quantify lead leakage caused by a simulated hail impact under a number of weather conditions and show that self-healing encapsulations can effectively reduce it.