Details

Autor(en) / Beteiligte

• Lee, Sang-Won
• Bae, Soohyun
• Cho, Kyungjin
• Kim, Seongtak
• Hwang, Jae-Keun
• Lee, Wonkyu
• Lee, Solhee
• Hyun, Ji Yeon
• Lee, Seunghun
• Choi, Sung Bin
• Chun, Hongpil
• Kim, Won Mok
• Kang, Yoonmook
• Lee, Hae-Seok
• Kim, Donghwan

Titel

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.