Stabilization strategies of poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) for efficient and durable perovskite and organic optoelectronics

Woongsik Jang; Byung-Gi Kim; Jae Sang Cho; Ji Hyun Lim; Dong Hwan Wang

doi:10.1117/12.2568453

22 August 2020 Stabilization strategies of poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) for efficient and durable perovskite and organic optoelectronics

Woongsik Jang, Byung-Gi Kim, Jae Sang Cho, Ji Hyun Lim, Dong Hwan Wang

Author Affiliations +

Proceedings Volume 11474, Organic, Hybrid, and Perovskite Photovoltaics XXI; 114741K (2020) https://doi.org/10.1117/12.2568453
Event: SPIE Organic Photonics + Electronics, 2020, Online Only

Conference Poster

Abstract

In this research, we focus on the PEDOT:PSS materials, which is widely utilized in the field of organic electronics. First, we applied customized transfer of PEDOT:PSS to inter-layer in planer-type perovskite photovoltaics. The transfer-printed PEDOT:PSS layer led to the favorable crystallinity of perovskite Especially, the better stability resulted from the preserved crystallinity, and the inhibition of the ITO degradation. Second, we fabricated a pH-controlled PEDOT:PSS adjusted by imidazole. The neutral PEDOT:PSS revealed superior and very consistent performance for various active area sizes due to the uniformity of the perovskite crystals. The stability also was enhanced by preventing degradation by strong acid. Finally, a hybrid of PEDOT:PSS and copper chalcogenide nanoparticles (NPs) was used for organic photodiode. Since the NPs formed energy barrier in PEDOT:PSS, the dark current of the device was remarkably suppressed, with excellent detectivity.

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Woongsik Jang, Byung-Gi Kim, Jae Sang Cho, Ji Hyun Lim, and Dong Hwan Wang "Stabilization strategies of poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) for efficient and durable perovskite and organic optoelectronics", Proc. SPIE 11474, Organic, Hybrid, and Perovskite Photovoltaics XXI, 114741K (22 August 2020); https://doi.org/10.1117/12.2568453

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