Highly Efficient and Bendable Organic Solar Cells with Solution-Processed Silver Nanowire Electrodes

• Published in: Advanced functional materials Vol. 23; no. 34; pp. 4177 - 4184
• Main Authors: Song, Myungkwan, You, Dae Sung, Lim, Kyounga, Park, Sujin, Jung, Sunghoon, Kim, Chang Su, Kim, Dong-Ho, Kim, Do-Geun, Kim, Jongk-Kuk, Park, Juyun, Kang, Yong-Cheol, Heo, Jinhee, Jin, Sung-Ho, Park, Jong Hyun, Kang, Jae-Wook
• Format: Journal Article
• Language: English
• Published: Weinheim WILEY-VCH Verlag 14.09.2013; WILEY‐VCH Verlag
• Subjects: conducting electrode; Devices; Electrodes; Formability; Nanomaterials; Nanowires; organic solar cells; Photovoltaic cells; Silver; silver nanowires; Solar cells; solution-processed; transparent
• ISSN: 1616-301X; 1616-3028
• DOI: 10.1002/adfm.201202646

Highly efficient and bendable organic solar cells (OSCs) are fabricated using solution‐processed silver nanowire (Ag NW) electrodes. The Ag NW films were highly transparent (diffusive transmittance ≈ 95% at a wavelength of 550 nm), highly conductive (sheet resistance ≈ 10 Ω sq−1), and highly flexible (change in resistance ≈ 1.1 ± 1% at a bending radius of ≈200 μm). Power conversion efficiencies of ≈5.80 and 5.02% were obtained for devices fabricated on Ag NWs/glass and Ag NWs/poly(ethylene terephthalate) (PET), respectively. Moreover, the bendable devices fabricated using the Ag NWs/PET films decrease slightly in their efficiency (to ≈96% of the initial value) even after the devices had been bent 1000 times with a radius of ≈1.5 mm. Highly bendable and efficient organic solar cells are developed using solution‐processed silver nanowires. The electrode and solar cell characterizations are also presented with the devices showing high performance and flexibility.