Highly conductive and transparent carbon nanotube-based electrodes for ultrathin and stretchable organic solar cells

Fan Qingxia^{1, 3}, Zhang Qiang^{1, 3}, Zhou Wenbin¹, Yang Feng^{1, 3}, Zhang Nan¹, Xiao Shiqi^{1, 3}, Gu Xiaogang^{1, 3}, Xiao Zhuojian^{1, 3}, Chen Huiliang^{1, 3}, Wang Yanchun^{1, 2, 3}, Liu Huaping^{1, 2, 3}, Zhou Weiya^{1, 2, 3, †}

(color online) Photograph of (a) a freestanding CNT film fixed on polymethyl methacrylate frame with a hole (6 cm×5 cm). (b) The sheet resistance and transmittance of Au-CNT film as a function the concentration of chloroauric acid.