Understanding the formation of PEDOT:PSS films by ink-jet printing for organic solar cell applications

Abstract

PEDOT:PSS films were ink-jet printed and were integrated into organic solar cell devices. The devices using printed films yield power conversion efficiencies comparable to the devices using spin coated PEDOT:PSS films.

Printable Transparent Conductive Films for Flexible Electronics

“…Oxygen plasma or UV/O 3 treatment is also believed to be efficient in improving the surface wettability of substrates because the formed hydrophilic groups such as CO, CO, and COO are able to generate hydroxyl group through reaction with water. After oxygen plasma exposure for different time, the inkjet‐printed PEDOT:PSS films on ITO‐coated glass substrates presented better uniformity . This suggested that oxygen plasma treatment gave rise to a decrease in contact angle and hence a better wettability of the substrate.…”

“…The improved wettability of the PEDOT:PSS solution is related to the decreasing surface tension as the concentration of Triton X‐100 is increased, while the increase in electrical properties can be explained by the doping effect of PEDOT:PSS on the graphene. The viscosity of ink can be simply adjusted by changing the solution concentration . By precisely adjusting the volume ratio of PEDOT:PSS to DI water to 1:2, 1:1 and 2:1, the ink's Fromm number can be turned into 6.72 (viscosity ≈ 3.95 cP), 5.37 (viscosity ≈ 4.9 cP), and 4.63 (viscosity ≈ 5.65 cP), respectively, which fall into the suitable range for inkjet printing without the formation of any satellite drops.…”

“…Therefore, a clean and smooth surface as well as a proper surface wettability of the substrates is critical for achieving high‐quality patterning and printing precision. Several techniques, such as wet chemical treatment, raising the substrate temperature, and oxygen plasma treatment, have been widely applied to different substrates to tune the surface wetting and drying properties for obtaining proper morphology of the printed features …”

Computational microscopy study of the granular structure and pH dependence of PEDOT:PSS

“…1,2 In contrast to many other conducting polymers, PEDOT:PSS is thermally and chemically stable and is thus used as an active element in various technological applications including flexible and printable electronic and optical devices, as well as energy storage devices. [3][4][5][6][7][8][9] A massive number of experimental studies have been devoted to investigation of various aspects of the morphology of PEDOT: PSS (for reviews see e.g. ref.…”

Струйная Печать Слоев Полианилина Для Перовскитных Солнечных Элементов

“…Так, ДТС на основе водорастворимого комплекса поли-3, 4-этилендиокситиофена с полистиролсульфокислотой (ПЭДОТ−ПССК) успешно применяются в разработках перовскитных СЭ [3]. Одним из перспективных и активно развиваемых методов для приготовления СЭ является метод струйной печати слоев ПЭДОТ−ПССК [4].…”