Temperature coefficient of perovskite battery

Are perovskite solar cells temperature-dependent?

In this work, a temperature-dependent analytical model is developed to investigate the temperature effect of perovskite solar cells based on diffusion-drift numerical modeling. It was found that the built-in electrical field and minority carrier concentration are closely corrected with temperature, explaining the thermal induced PCE variation.

Do perovskite semiconductor compounds have special temperature sensitivities?

It is shown that the unusual behavior of the bandgaps of perovskite semiconductor compounds such as CH 3 NH 3 PbI 3-x Cl x and CsSnI 3 will ultimately, in the radiative limit, give PV cells made of these materials peculiar temperature sensitivities.

Do perovskites change PCE vs temperature?

First, the change in PCE vs temperature of any perovskite PV will be influenced by a combined change in the JSC, and VOC, unlike Si which is predominantly affected by the VOC. Our analysis shows that in general the perovskites used for PV have a wider band gap than Si and GaAs, and thus will fundamentally have a lower limit in TPCE.

What is the tpce of perovskite PV?

For terrestrial utility-scale PV applications, the typical operating temperature range is approximately −20 to 85 °C; (18) thus, we focus on the high-temperature TPCE. Even after only a handful of reports, it is clear that perovskite PV have a much smaller (better) TPCE at elevated temperatures, (9,11,19,20) reaching a champion of ∼−0.13 rel %/°C.

Do perovskite solar cells sensitivity affect photovoltaic efficiency?

Perovskite solar cells (PSCs) have promised high-efficiency and low-cost solar-to-electrical conversion that now go outdoors for practical applications; however, the elevated outdoor temperature remarkably affects the photovoltaic efficiency. To date, there has been little work about understanding the temperature sensitivity of PSCs.

How do we disentangle the temperature-dependent effects of perovskite solar cells?

We fabricate perovskite solar cells with a TPCE of −0.08 rel %/°C and then disentangle the temperature-dependent effects of the perovskite absorber, contact layers, and interfaces by comparing different device architectures and using drift-diffusion modeling.