Huang, L.-M.L.-M.HuangHu, C.-W.C.-W.HuPeng, C.-Y.C.-Y.PengSu, C.-H.C.-H.SuHo, K.-C.K.-C.HoKUO-CHUAN HO2018-09-102018-09-102016http://www.scopus.com/inward/record.url?eid=2-s2.0-84948716420&partnerID=MN8TOARShttp://scholars.lib.ntu.edu.tw/handle/123456789/395904Compared to traditional electrochromic technology, photovoltaic electrochromic (PV-EC) module can achieve color change in electrochromic layers without additional power source. In this work, an innovative printable PV-EC module is provided. The device includes a plurality of planarly distributed silicon thin film solar cells (Si-TFSCs) configured in superstrate structure, covered with a layer of polyelectrolyte based electrochromic thin film (ECTF). The Si-TFSC consists of one anode (with a portion of area exposed from the Si-TFSC), a photoelectric conversion layer, and one cathode. The ECTF is prepared from nano-size polyelectrolyte based electrochromic material, which is composed of polyaniline (PANI) and polyanion poly(sodium 4-styrenesulfonate) (PSS) nanospheres mixture. When the printable PV-EC module is irradiated by sunlight, the PANI/PSS ECTF on the surface of the transparent anode layer exhibits anodic color changing, and transforms from pale green (emeraldine salt state) to light blue (emeraldine blue state). © 2015 Elsevier B.V. All rights reserved.Electrochromic; Nanospheres; Photovoltaic; Polyaniline; Polyanionic poly(sodium 4-styrenesulfonate); Silicon thin film solar cell[SDGs]SDG7Electrochromic devices; Electrodes; Nanospheres; Nanostructured materials; Photoelectricity; Polyaniline; Polyelectrolytes; Silicon; Solar cells; Solar power generation; Thin films; Electrochromic layers; Electrochromic materials; Electrochromics; Photoelectric conversion; Photovoltaic; Poly(sodium 4-styrenesulfonate); Polyanilines (PAni); Silicon thin-film solar cells; Electrochromismjournal article10.1016/j.solmat.2015.05.011