Publication

Defects Induced Instability of Perovskite Solar Cells

2026

Abstract

Perovskite solar cells (PSCs) have demonstrated remarkable potential for photovoltaics, achieving power conversion efficiencies over 27%. However, their commercialization is still hindered by insufficient operational stability under realistic working conditions, including temperature fluctuations, humidity, and continuous illumination. Consolidated experimental evidence indicates that defects in the perovskite bulk and at the interfaces with electron and hole transport layers play a critical role in initiating degradation processes and performance losses. Mitigating defect formation is therefore essential for stabilizing PSCs. This review highlights defect‐induced instability mechanisms associated with ion migration, lattice distortion, and surface chemistry. Furthermore, we discuss recent physical and chemical passivation strategies that enhance device stability without compromising efficiency.

Official source

https://infoscience.epfl.ch/entities/publication/d1fa17d3-2822-4b18-8fda-eedf9ebd6bf6

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2026

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/d1fa17d3-2822-4b18-8fda-eedf9ebd6bf6

About this result

Related concepts (32)

Perovskite solar cell

A perovskite solar cell (PSC) is a type of solar cell that includes a perovskite-structured compound, most commonly a hybrid organic–inorganic lead or tin halide-based material as the light-harvesting active layer. Perovskite materials, such as methylammonium lead halides and all-inorganic cesium lead halide, are cheap to produce and simple to manufacture. Solar-cell efficiencies of laboratory-scale devices using these materials have increased from 3.8% in 2009 to 25.

Solar-cell efficiency

Solar-cell efficiency refers to the portion of energy in the form of sunlight that can be converted via photovoltaics into electricity by the solar cell. The efficiency of the solar cells used in a photovoltaic system, in combination with latitude and climate, determines the annual energy output of the system. For example, a solar panel with 20% efficiency and an area of 1 m2 will produce 200 kWh/yr at Standard Test Conditions if exposed to the Standard Test Condition solar irradiance value of 1000 W/m2 for 2.

Solar cell

A solar cell, or photovoltaic cell, is an electronic device that converts the energy of light directly into electricity by the photovoltaic effect, which is a physical phenomenon. It is a form of photoelectric cell, defined as a device whose electrical characteristics, such as current, voltage, or resistance, vary when exposed to light. Individual solar cell devices are often the electrical building blocks of photovoltaic modules, known colloquially as solar panels.

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Defects Induced Instability of Perovskite Solar Cells

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