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Sputtering of TiO2 for High-Efficiency Perovskite and 23.1% Perovskite/Silicon 4‑Terminal Tandem Solar Cells
Ist Teil von
ACS applied energy materials, 2019-09, Vol.2 (9), p.6263-6268
Ort / Verlag
American Chemical Society
Erscheinungsjahr
2019
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
Radio frequency (RF) magnetron-sputtered TiO2 (RS-TiO2) is investigated as a hole-blocking layer for perovskite solar cells. RS-TiO2 shows conformal, dense, and efficiently electron transferable properties. Power conversion efficiency (PCEs) of 20.9% were obtained with high reproducibility. RS-TiO2 also showed potential in the up-scaling process, transparent perovskite, and perovskite/silicon 4-terminal tandem solar cells. With increasing active area 40 times from 0.075 cm2 to 3 cm2 without dividing areas by laser patterning, less than 4% open-circuit voltage (V oc) and short-circuit current density (J sc) drops were observed. This means RS-TiO2 layers can maintain their film quality even when the area size is increased. Furthermore, by applying RS-TiO2 to transparent perovskite solar cells and perovskite/silicon 4-terminal tandem solar cells, PCEs of 16.7% and 23.1% were obtained, respectively.
Sprache
Englisch
Identifikatoren
ISSN: 2574-0962
eISSN: 2574-0962
DOI: 10.1021/acsaem.9b00801
Titel-ID: cdi_acs_journals_10_1021_acsaem_9b00801
Format
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