A method of manufacturing working electrodes for series connected dye sensitised solar cells in a continuous reel-to-reel production line comprising the steps of: i. Providing a metal carrier strip substrate having a first side and a second side; ii. Providing an organic electrically insulating layer on the first side of the metal carrier substrate having a temperature resistance in the range of 200°C to 600°C; iii. Providing an organic conductive layer on the electrically insulating layer having a temperature resistance in the range of 200°C to 600°C, optionally comprising conductive inorganic additives; iv. Scribing the organic conductive layer at regular intervals to divide the organic conductive layer into cells that are electrically separated; v. Providing a metal oxide layer on the scribed organic conductive layer; vi. Sintering the metal oxide layer; vii. Sensitising the sintered metal oxide layer with a dye.