On the origin of open-circuit voltage losses in flexible n-i-p perovskite solar cells.

ABSTRACT: The possibility to manufacture perovskite solar cells (PSCs) at low temperatures paves the way to flexible and lightweight photovoltaic (PV) devices manufactured via high-throughput roll-to-roll processes. In order to achieve higher power conversion efficiencies, it is necessary to approach the radiative limit via suppression of non-radiative recombination losses. Herein, we performed a systematic voltage loss analysis for a typical low-temperature processed, flexible PSC in n-i-p configuration using vacuum deposited C₆₀ as electron transport layer (ETL) and two-step hybrid vacuum-solution deposition for CH₃NH₃PbI₃ perovskite absorber. We identified the ETL/absorber interface as a bottleneck in relation to non-radiative recombination losse

SUBMITTER: Pisoni S 

PROVIDER: S-EPMC6691881 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature