High temperature firing to develop and unnecessary film-type dye-sensitized solar cells, succeeded in trial production.

High temperature baking to develop an unnecessary film-type dye-sensitized solar cell , Sekisui Chemical was successfully fabricated . Called the first time in the world . In order to be in close contact with the photoelectric conversion layer on the material , such as adhesive tape or a general-purpose film having a low heat resistance , production of dye-sensitized solar cell using a variety of film substrate is possible . I developed in collaboration with the National Institute of Advanced Industrial Science and Technology .
Dye -sensitized solar cells , a kind of organic solar cell to be used for the photoelectric conversion layer by adsorbing a dye on the oxide semiconductor layer such as titanium dioxide . And performance in a place which is disadvantageous for power generation , such as a wall or a shadow , but has not been put to practical use widely . Was applied to the substrate a paste comprising titanium dioxide in general , and to the semiconductor layer by firing at a temperature of 500 ℃ , the high temperature of 500 ℃ had become an issue.
This time , AIST Sekisui dioxide that by using our method is allowed to collide with the substrate by applying a high impact energy to the particles of the raw material , to facilitate the binding between the particles in the physical energy , suitable for the semiconductor layer of the dye-sensitized solar cell the successful formation of a porous film of titanium , it was confirmed generation performance . Heating process eliminates a result , the solar cell can be realized even in a commercially available film with low heat resistance .
Power generation efficiency in the film substrate became the world's highest level of 8.0 %. Can be continuously produced in the substrate that is wound into a roll , the production cost can be suppressed . It has a feature lightweight , thin , flexible , and long , and greatly expand the reach of the solar cell. To recruit business partners towards the product in the future , to advance the development applications including interior and exterior building materials windows , such as a wall , with the aim to market in 2015 . That is located at the level of 8% and fairly even power generation efficiency , and can be used crowded onto the various locations more than anything is good . It is going to be even cheaper production costs because it seems be suppressed .



積水化学工業は、高温焼成が不要なフィルム型色素増感太陽電池を開発し、試作に成功した。世界で初めてという。耐熱性の低い汎用フィルムや粘着テープのような材料にも光電変換層を密着できるため、さまざまなフィルム基板を使った色素増感太陽電池の製造が可能になる。独立行政法人産業技術総合研究所と共同で開発した。
　色素増感太陽電池は、二酸化チタンなどの酸化物半導体層に色素を吸着して光電変換層に利用する有機太陽電池の一種。影や壁面など発電に不利とされる場所で性能を発揮するが、広く実用化されていない。一般的には二酸化チタンを含むペーストを基板に塗布し、500℃の温度で焼成して半導体層にするが、500℃の高温が課題になっていた。
　積水化学と産総研は今回、原料の粒子に高い衝突エネルギーを与えて基板に衝突させ、その物理エネルギーで粒子間の結合を促進させる方法を使い、色素増感太陽電池の半導体層に適した二酸化チタンの多孔膜の成膜に成功し、発電性能を確認した。これによって加熱プロセスがなくなり、耐熱性の低い市販フィルムでも太陽電池が実現できる。
　フィルム基板での発電効率は8.0％と世界最高水準となった。ロール状に巻いた基材で連続製造でき、生産コストも抑えられる。軽量、薄型、フレキシブル、長尺などの特長を持ち、太陽電池の利用範囲を大きく広げる。今後製品化に向けて事業パートナーを募り、窓、壁などの内外装建材をはじめ用途開拓を進め、2015年の市場投入を目指す。発電効率も8％とかなりの水準にありますし、何よりも様々な場所に貼りこんで使用できる点がいいですね。生産コストも抑えられるようですから安価にもなりそうですね。