Temperature Coefficients of Perovskite Photovoltaics for Energy Yield Calculations

Abstract

Temperature coefficients for maximum power (T PCE), open circuit voltage (V OC), and short circuit current (J SC) are standard specifications included in data sheets for any commercially available photovoltaic module. To date, there has been little work on determining the T PCE for perovskite photovoltaics (PV). We fabricate perovskite solar cells with a T PCE 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. A main factor contributing to the small T PCE of perovskites is their low intrinsic carrier concentrations with respect to Si and GaAs, which can be explained by its wider band gap. We demonstrate that the unique increase in E g with increasing temperatures seen for perovskites results in a reduction in J SC but positively influences V OC. The current limiting factors for the T PCE in perovskite PV are identified to originate from interfacial effects.

Mobility driven thermoelectric and optical properties of two-dimensional halide-based hybrid perovskites: impact of organic cation rotation

“…The operating temperature range for perovskite materials approximately falls in between the À20 to 85 1C (B253 to 358 K). 66,67 Therefore, we have calculated the temperaturedependent thermoelectric transport coefficients such as the Seebeck coefficient and electrical conductivity for the 100 to 400 K temperature range. To determine the anisotropic behavior of the thermoelectric transport properties, we presented them with crystallographic directions x and z for all the rotations of the MA cation.…”

Accelerated aging of all-inorganic, interface-stabilized perovskite solar cells

“…Figure S11 shows the operational stability of 2D and 3D PSCs without encapsulation operating at 110°C, confirming the robustness of our solar cell packaging. Heating the solar cells reversibly reduced their PCEs ( 29 ), which accounts for the differences in the initial PCE of the unnormalized data set in fig. S8.…”

Enhanced room-temperature terahertz detection and imaging derived from anti-reflection 2D perovskite layer on MAPbI3 single crystals

“…21 Beyond that, HPs also show potential in piezoelectric, ferroelectric, and related applications. 22 The inferior thermal conductivity, 22,23 negative temperature coefficient of resistance, 24 and notable Seebeck effect 25 in HPs have been reported, in which the Seebeck coefficient of the HPs polycrystalline films is at par with graphene. [25][26][27][28] Moreover, in the diversified A-site and X-site substitution HPs system, the thermal conductivity is barely dependent on the A-cation, but increases across the series X = I < Br < Cl.…”