Kazuaki Tsuji

5.3: Novel Design for Color Electrochromic Display

developed a technology for a new full-color reflective electrochromic display (ECD) based on the subtractive color mixing model. This improves display brightness and color reproducibility. Additional advantage is simple production process. An active matrix driving of the full-color reflective ECD has been demonstrated successfully.

ZnInS Thin Film Solar Cell Fabricated by Sputtering Process

To achieve low cost solar cells, new fabrication processes should be developed for higher throughput and utilization rate. In this study, we focused on a sputtering method and found that a multinary compound ZnInS (II–III–VI) is suitable for this process. The ZnInS thin film deposited by sputtering had an n-type semiconductor characteristic. A AgInTe/ZnInS thin-film solar cell fabricated by the sputtering process in a layer structure of glass/Mo/AgInTe/ZnInS/AZO showed a conversion efficiency of over 1%, the origin of which was mainly the ZnInS layer. These results suggested that ZnInS is a strong candidate photovoltaic material for fabrication with the sputtering process.