成果報告書詳細
管理番号20110000000610
タイトル*平成22年度中間年報 最先端研究開発支援プログラム/低炭素社会に資する有機系太陽電池の開発/低コスト色素増感太陽電池の製造と発電実証試験
公開日2011/7/28
報告書年度2010 - 2010
委託先名太陽誘電株式会社
プロジェクト番号P09026
部署名新エネルギー部
和文要約和文要約等以下本編抜粋:1.研究開発の内容及び成果等 サブテーマ(13)「低コスト色素増感太陽電池の製造と発電実証試験」 (13)-1「低コストプラスチック色素増感太陽電池の研究開発」(平成22年度第1四半期~第3四半期実施) ○研究開発背景 有機系太陽電池の中でも実用化が近いと考えられる色素増感太陽電池について、低コスト化に向けた部材及び製造方法の開発を目指すとともに、発電装置としての実証試験を行うこととした。色素増感太陽電池は、印刷法で製造出来る事から、低コスト化が期待できるが、信頼性を含む特性向上、コスト低減は未だ途上である。
英文要約Title: Funding Program for World-Leading Innovative R&D on Science and Technology / Development of organic photovoltaics toward a low-carbon society / Development of the manufacturing technology of low-cost dye sensitized solar cell and actual proof test of power generation
(TAIYO YUDEN CO., LTD.)
A glass substrate typically used for a dye-sensitized solar cell(DSC) accounts for a large fraction of component cost in the cost estimation. By replacing the glass substrate by a lower-cost plastic substrate, the cost can be further reduced. However, in the case of using the plastic substrate, an upper temperature limit of a film substrate is approximately 150 oC . Therefore we can’t use sintering process for improvement of DSCs efficiency.
In this work, we focused on the removal of organic components in TiO2 films and we try various processes replacing the sintering process.
On a PEN substrate (thickness of 200 ~m) with ITO, P-25 based TiO2 paste was printed by a screen printing method to have a size of 1 cm square and a thickness of approximately 5 ~m, and cured at 120 oC for 30 minutes, and then various types of processing equipments were used to afford the TiO2 film. After being immersed into the dye solution containing 300 uM of N719, the dye-coated films were assembled with the catalytic Pt coated counter electrode. The electrolyte based on acetonitrile was injected into the interelectrode space to measure the photo-current-voltage (I-V) characteristics of the DSCs. And Thermal Desorption Spectroscopy (TDS) was used to attempt to evaluate the residual organic component amounts in the films. Processing methods tested in this examination are as follows:
(a) UV/O3 irradiation: A method that simultaneously irradiates UV and O3 to generate active oxygen, and thereby decomposes and removes organic components on the object.
(b) Pulsed UV irradiation: A method that irradiates the object with high power pulsed ultraviolet to visible light to provide optical to thermal energy.
(c) Heat Beam (HB) irradiation: A method that irradiates the object with heated gas. This allows only an irradiation surface side to be heated, and a temperature of an opposite side surface is not so increased, which is approximately 1/2 to 1/3 of a temperature of the irradiation side.
As a result, in the processes tested in this examination, the UV/ O3 irradiation is improved by 2.6 times with respect to the unprocessed case, and produced the highest effect. And, the residual organic component amount for the UV/ O3 irradiation case was reduced to 1/10 or less, which was equal to a value twice as large as that for the case of 500 oC sintering. It is thought that this is because organic components were removed in the TiO2 film, and thereby TiO2 particle surfaces were exposed to increase a dye adsorption amount, or binding property between TiO2 particles was improved to thereby increase an electron lifetime in the TiO2 film.
ダウンロード成果報告書データベース(ユーザ登録必須)から、ダウンロードしてください。

▲トップに戻る