title: Differentially pumped spray deposition as a rapid screening tool for organic and perovskite solar cells.
abstract: We report a spray deposition technique as a screening tool for solution processed solar cells. A dual-feed spray nozzle is introduced to deposit donor and acceptor materials separately and to form blended films on substrates in situ. Using a differential pump system with a motorised spray nozzle, the effect of film thickness, solution flow rates and the blend ratio of donor and acceptor materials on device performance can be found in a single experiment. Using this method, polymer solar cells based on poly(3-hexylthiophene) (P3HT):(6,6)-phenyl C61 butyric acid methyl ester (PC61BM) are fabricated with numerous combinations of thicknesses and blend ratios. Results obtained from this technique show that the optimum ratio of materials is consistent with previously reported values confirming this technique is a very useful and effective screening method. This high throughput screening method is also used in a single-feed configuration. In the single-feed mode, methylammonium iodide solution is deposited on lead iodide films to create a photoactive layer of perovskite solar cells. Devices featuring a perovskite layer fabricated by this spray process demonstrated a power conversion efficiencies of up to 7.9%.
authors: CSIRO Manufacturing Flagship, Bag 10, Clayton South, Victoria 3168, Australia.|School of Materials Science and Engineering, Gwangju Institute of Science and Technology, Gwangju 500-712, Republic of Korea.
authors: Yen-Sook
authors: YS
authors: Jung
authors: CSIRO Manufacturing Flagship, Bag 10, Clayton South, Victoria 3168, Australia.|School of Materials Science and Engineering, Gwangju Institute of Science and Technology, Gwangju 500-712, Republic of Korea.
authors: Kyeongil
authors: K
authors: Hwang
authors: CSIRO Manufacturing Flagship, Bag 10, Clayton South, Victoria 3168, Australia.
authors: Fiona H
authors: FH
authors: Scholes
authors: CSIRO Manufacturing Flagship, Bag 10, Clayton South, Victoria 3168, Australia.
authors: Scott E
authors: SE
authors: Watkins
authors: School of Materials Science and Engineering, Gwangju Institute of Science and Technology, Gwangju 500-712, Republic of Korea.
authors: Dong-Yu
authors: DY
authors: Kim
authors: CSIRO Manufacturing Flagship, Bag 10, Clayton South, Victoria 3168, Australia.
authors: Doojin
authors: D
authors: Vak