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17 lut 2017 · Figure 2f displays the J–V characteristic of the champion tandem cell, certified at NREL, with a V OC of 1.65 V, J SC of 18.1 mA cm −2 and FF of 79.0%, resulting in an efficiency of 23.6% with...
C. Hansen, C. M., "The Free Volume Interpretation of Plasticizing Effectiveness and the Diffu sion of Solvents and Plasticizers in High Polymers", Official Digest, 37, 57 (1965).
19 sie 2020 · Titrating reactive Ni ≥3+ surface states with excess A-site cation salts during perovskite active layer deposition yielded an increase in VOC values to 1.15 V and power conversion efficiencies of ∼20%.
HIGHLIGHTS. NiR3+sites in NiOx thin films react with perovskite precursors, forming PbI2 xBrx. PbI2 xBrx-rich perovskite acts as a hole extraction barrier, reducing device VOC. Excess A-site cation in the precursor improves by VOC 200 mV to 1.15 V. 20% efficient devices with NiOx HTLs are more stable than devices with organic HTLs.
Nickel oxide (NiO x) hole transport layers (HTLs) are desirable contacts for perovskite photovoltaics because they are low cost, stable, and readily scalable; however, they deliver lower open-circuit voltages (V OC s) compared to organic HTLs.
Single-Molecule Spectroscopy of Interfacial Electron Transfer. Michael W. Holman, Ruchuan Liu, and David M. Adams*. Contribution from the Department of Chemistry, Columbia UniVersity, 3000 ...
Here, we improve the efficiency of monolithic, two-terminal, 1-cm2 perovskite/silicon tandems to 23.6% by combining an infrared-tuned silicon heterojunction bottom cell with the recently developed caesium formamidinium lead halide perovskite.
