Abstract
Abstract In this work, we conducted real-world outdoor performance and stability test of two different perovskite solar cell configurations in Bahir Dar, Ethiopia climate conditions. The first device has a mesoporous n-i-p configurations. The power conversion efficiency (PCE) of this device measured under outdoor illumination, at an incident power of 69 mW/cm2, is observed to be 15% for active area of 0.1 cm2. The maximum power generated measured (at a solar irradiance of 72 mW/cm2) was 1.23 mW. The second perovskite device has planar p-i-n configuration. This device has a PCE of 18% without masking, but drops to 11% when the device is covered with circular aperture mask. Maximum power tracking and stability measurements of the device have been carried out. Maximum power can be generated at operating voltage in the range of 0.8 V-1.2 V for a device with an active area of 0.095 - 0.1cm2. The device maintains more than 90% of its PCE after 30 days of environmental exposure.
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