M304773 八、新型說明： 【新型所屬之技術領域】 本新型係有關於一種太陽能電池，其特別有關於一種具有複數個 步階式表面之太陽能電池。 【先前技術】 因石油即將在本世紀内消耗殆盡的處境下，人類不斷尋找新能源 來取代石化燃料能源，其中取之不盡的太陽能成為重要方向。為降低 成本及提高光電轉換效率，應用奈米量子點開發之染料敏化太陽能電 池可望取代傳統的矽基電極太陽能電池，成為二十一世紀新能源技術。 染料敏化太陽能電池係二十世紀九十年代發展起來的、採用表面 吸附-層光敏祕之寬能料導體材料作電極，將太陽光直接轉換為 衣置。上錢有光敏染料之寬能辭導體電極稱為染料敏化半 :體_ ’光敏染料主要完成光的麵，轉體材料除了貞載光敏染 叙外，主要舰為電子敝集及傳導。轉魏太陽能電池之工作 =理係當雜做峨"谓顧翻峨，激發態上之 轉輕轉體導帶，岭穴則留麵射，轩隨後擴散至 基底’經外電路轉移至斟匕 質〜电』而氣化怨之染料被還原態之電解 ㈣原，魏紅電_錢€歸 、 的整個輸運過程。實驗说明丄工^丄骰、忍仗叩工成了宅丁 增大卢、〜轉體電極上進行多層吸附可以 曰穴尤〜捕獲效率，但在 7 了阻礙作用，降低電池光雷;；；：ΓΓ轉移過程中，内層染料起到 一…J 丁 "文卞導體電極在吸附單分子層 M304773 染料後才能達到最佳的電子婦㈣。惟，平板半導體電極表面積相 對車乂】、其表面上單分子層染料之光捕獲能力較差，使電池總能量致 =在0.1%以T。因此，有必要提供一種防止奈米級半導體電極材料異 吊堆積、表面積大、光電轉換效率高之染料敏化太陽能電池。 為了解決上述問題，有需要提供一種具有複數個步階式表面之太 陽忐電池以克服先前技術的缺點。 【新型内容】 ,、本創作之主要目的在提供一種太陽能電池，將複數個#階式表面 形成㈣導電基板，轉止轉體材料異常堆積並增大表面積， 以提高光電轉換效率。 、 池，二、，的·本創作提出-種具有高電極表面積之太陽能, 兮’、，3貞極，—電解質層；以及—正極。該電解質層係形成罗 紅極與該貞㈣。响嫩—輪_獅步階々 I，-半雜材軸_導縣板之複數個抑 、 =料層形成瓣_料上。該導電細於作為該負極^ 層用於有效《太陽光。料〜“之齡；以麟光敏染制 其 根據本嫩細_峨★太 千該步階式表_為直徑為⑽奈叙_。 =___物咖之太輯就—特徵，发 "I數個步階式表面係呈現週期性之排列。 、 M3 04773 =本創作之上述和其他目的、特徵、和優職更賴易懂，下 -寸+文她佳實施例，並配合所關式，作詳細說明如下。 【實施方式】 雖縣創作可表現為不同形紅實闕，但關所示者及於下文 :者係為本創作可之較佳實施例，並請了解本文所揭示者係考量 ^之季巳例’且亚非意圖用以將本創作限制於圖示及/或所描述 之斗寸疋貫施例中。 為解决先别技術中奈米級半導體電極材料容易產生異常堆積，致 :極表面積小。找轉換效率低之_，本創作之目的在於提供一 =硬數個步階式表面2〇防止半導體材料u異常堆積並增大電極表 提；"先電轉換效率。請參照第1圖，其所示為高電極表面積之 :〜也14之侧現結構圖。該太陽能電池丄斗包含一負極⑽；一電 貝b層；以及-正極16。該電解f 15層麵成於紅極托與該 、-1〇之間，其材料可為蛾或碟化鐘電解質^，該正極π可為鍍 麵或金之導電基板11。 々……、、第2圖’其所7^該具有高電極表面積之太陽能電池14 ^貝極ίο之侧視剖面圖。該負極1〇包含一導電基板u •，一半導體材 '1 L層’以及—光敏染料層13。該導電基板11具有複數個步階式表 装並4μ為該貝梭丄〇之承載本體；該半導體材料層形成於該導電 2 U之概個麵式表面2Q並作為试之媒介；以及該光敏 ’、1 了層1场成於4干導體材料12上並有效魏太陽光。需注意的是， M304773 基板11係為具有導電功能之玻璃；該步階式表面2〇係為直徑 為100奈米之孔洞。其製程係透過蝕刻或是電化學製程，孔隙率通常 為50%。忒步階式表面20之孔徑大小約為1〇〇奈米，孔洞深度約小於 该導電基板11的二分之一時，具有最佳的基板機械強度 。該步階式表 面20係為3 P皆步階式孔洞所構成；因此，需透過MEMS製程技術， 在衣私過耘中，需盡量避免等向性蝕刻，以免降低光電轉換效率。為 了考量該半導體材料12可均勻沈積在該導電基板u上，因此，該複 數個步階式表面20係呈現週期性之排列。該半_材料12層係為氧 化鋅；該材料具有較佳的光電轉換效率，其粒徑需約為20奈米。該半 $版材4 I2係沈積於該導電基板u上之複數個步階式表面上，其 主要功雜作為光敏染料層1;3之貞載，並有魏集與傳導電子。該光 =染料層，3係為方酸㈣料、部花菁_料、羅丹明賴料、偶氮笨 趣杂料、半菁類染料與金屬配合物所組成族群中之-種。由於不同染 料具有不_光吸收能力本創作之最佳實施_採贿金屬之配合 物，如Rmhenirnn-535。將其配製成一定濃度之溶液或凝膠 > P 、 恭㈡ / 一 3方式使其吸附於該半導體材料12上。 。、综上所述，本創作之該具有高電極表面積之太陽能電池Μ，具有 :週期性排狀步Ρ!式制，使得該轉财料12可均自沈積在該導 :基板11上，可有效防止該轉體#料異常堆積，進而增加電極 I面積，以提高光電轉換效率。 a雖然本創作已以前述較佳實施例揭示，然其並非用以限定本創 訂，任何熟習此技藝者，在不脫離本創作之精神和範圍内，當可作各 10 M304773 種之更動與修改。如上述的解釋，都可以作各型式的修正與變化，而 不會破壞此創作的精神。因此本創作之保護範圍當視後附之申請專利 範圍所界定者為準。M304773 VIII. New Description: [New Technical Field] The present invention relates to a solar cell, and more particularly to a solar cell having a plurality of stepped surfaces. [Prior Art] As oil is about to be exhausted in this century, human beings are constantly looking for new energy to replace fossil fuel energy, and inexhaustible solar energy has become an important direction. In order to reduce costs and improve photoelectric conversion efficiency, dye-sensitized solar cells developed using nano quantum dots are expected to replace traditional germanium-based electrode solar cells and become a new energy technology in the 21st century. The dye-sensitized solar cell is an electrode developed in the 1990s using a surface-adsorbing layer-sensitive photosensitive material, which converts sunlight directly into clothes. The conductive electrode with a photosensitive dye is called dye sensitization half: the body _ _ sensitizing dye mainly completes the light surface, and the rotating material is in addition to the photosensitive sensation, the main ship is electronic enthalpy and conduction. The work of transferring Wei solar cells = the rationale is to do the 峨 峨 谓 谓 谓 谓 谓 谓 谓 谓 谓 谓 谓 谓 谓 谓 谓 谓 谓 谓 谓 谓 谓 谓 谓 谓 谓 谓 谓 谓 激发 激发 激发 激发 激发 激发 激发 激发 激发 激发 激发 激发 激发The enamel ~ electricity" and the gasification of the dye is reduced by the electrolysis (four) of the original, Wei Hongdian _ money back, the entire transport process. The experiment shows that the completion of the work, the work of the workmanship has become a house, the enlargement of the house, the multi-layer adsorption on the rotating electrode can be used to capture the hole, especially the capture efficiency, but in 7 the hindrance effect, reducing the battery light mine;;;: During the transfer process, the inner dye acts as a ... J Ding " Wenhao conductor electrode can achieve the best electronic woman after adsorbing the monolayer M304773 dye (4). However, the surface area of the flat-panel semiconductor electrode is relatively low, and the light-capturing ability of the monomolecular dye on the surface is poor, so that the total energy of the battery is 0.1% to T. Therefore, it is necessary to provide a dye-sensitized solar cell which prevents the nano-semiconductor electrode material from being deposited in a different manner, has a large surface area, and has high photoelectric conversion efficiency. In order to solve the above problems, it is desirable to provide a solar cell having a plurality of stepped surfaces to overcome the disadvantages of the prior art. [New content] The main purpose of this creation is to provide a solar cell in which a plurality of #-step surfaces are formed into (four) conductive substrates, and the rotating material is abnormally stacked and the surface area is increased to improve the photoelectric conversion efficiency. , the pool, the second, the present, the present invention proposes a kind of solar energy with high electrode surface area, 兮', 3 贞, electrolyte layer; and - positive electrode. The electrolyte layer forms a red pole and the crucible (four). Rotating tenderness - wheel _ lion step 々 I, - semi-miscellaneous shaft _ guide county board of a plurality of suppression, = material layer forming petals _ material. The conductive is finer than the negative electrode layer for effective "sunlight." Material ~ "age; dyed with linsen light according to this tender _ 峨 ★ too thousand this step scale table _ for the diameter of (10) Nai _ _. =___ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ I number of stepped surface systems are periodically arranged., M3 04773=The above and other purposes, features, and excellent positions of this creation are easier to understand, and the lower-inch + text her best examples, and with the relevant The following is a detailed description of the following: [Embodiment] Although the creation of the county can be expressed in different forms, it is shown in the following: and the following is the preferred embodiment of the creation, and please understand the disclosure of this article. The case is considered to be the case of 'the season' and the Asian and African intentions are used to limit the creation to the illustrated and/or described examples. In order to solve the problem, the nano-scale semiconductor electrode material is easy to produce. Abnormal accumulation, resulting in: small surface area is small. Finding conversion efficiency is low. The purpose of this creation is to provide a = hard number of step surface 2〇 to prevent abnormal accumulation of semiconductor material u and increase electrode surface; Conversion efficiency. Please refer to Figure 1 for the high electrode surface area: ~ also 14 side The solar cell stack comprises a negative electrode (10); a b-b layer; and a positive electrode 16. The electrolyzed f 15 layer is formed between the red electrode holder and the -1 inch, and the material thereof may be a moth or a dish. The positive electrode π can be a plated surface or a gold conductive substrate 11. [Fig. 2, Fig. 2] a side view of the solar cell 14 with a high electrode surface area The negative electrode 1 includes a conductive substrate u, a semiconductor material '1 L layer' and a photosensitive dye layer 13. The conductive substrate 11 has a plurality of stepped meters and 4μ is the carrier body of the Bessel? The layer of semiconductor material is formed on the surface 2Q of the conductive layer 2U and serves as a test medium; and the photosensitive layer 1 field is formed on the 4 dry conductor material 12 and is effective for the sunlight. Yes, the M304773 substrate 11 is a glass having a conductive function; the step surface 2 is a hole having a diameter of 100 nm. The process is through etching or electrochemical processes, and the porosity is usually 50%. The stepped surface 20 has a pore size of about 1 nanometer and the pore depth is about small. When one-half of the conductive substrate 11 has the best mechanical strength of the substrate, the step surface 20 is composed of 3 P stepped holes; therefore, it is necessary to pass through the MEMS process technology. In the middle, it is necessary to avoid isotropic etching to avoid reducing the photoelectric conversion efficiency. In order to consider that the semiconductor material 12 can be uniformly deposited on the conductive substrate u, the plurality of stepped surfaces 20 are periodically arranged. The semi-material 12 layer is zinc oxide; the material has better photoelectric conversion efficiency, and the particle size needs to be about 20 nm. The half-material 4 I2 is a plurality of steps deposited on the conductive substrate u. On the surface of the surface, the main function is as the photosensitive dye layer 1; 3 is carried, and there are Wei and conduction electrons. The light = dye layer, and the 3 series are among the groups consisting of squaraine (four) materials, merocyanine materials, rhodamine lysate, azo stupid materials, semi-cyanine dyes and metal complexes. Because of the different dyes that have the ability to absorb light, the best implementation of this creation _ briber metal complexes, such as Rmhenirnn-535. It is formulated into a solution or gel of a certain concentration > P, Christine (2) / 3 to be adsorbed on the semiconductor material 12. . In summary, the solar cell crucible having a high electrode surface area of the present invention has a periodic step-by-step system, so that the refueling material 12 can be self-deposited on the substrate: The material of the rotating body is effectively prevented from being abnormally accumulated, thereby increasing the area of the electrode I to improve the photoelectric conversion efficiency. Although the present invention has been disclosed in the foregoing preferred embodiments, it is not intended to limit the present invention, and anyone skilled in the art can make various 10 M304773 changes without departing from the spirit and scope of the present invention. modify. As explained above, all types of corrections and changes can be made without destroying the spirit of this creation. Therefore, the scope of protection of this creation is subject to the definition of the scope of the patent application.
11 M304773 【圖式簡單說明】 圖1顯示為具有高電極表面積之太陽能電池之侧視結構圖； 圖2顯不為具有南電極表面積之太陽能電池之負極之侧視剖面圖。 【主要元件符號說明】 10負極 11導電基板 12半導體材料 13光敏染料層 14太陽能電池 15電解質 16正極 20步階式表面11 M304773 BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a side elevational view showing a solar cell having a high electrode surface area; Fig. 2 is a side cross-sectional view showing a negative electrode of a solar cell having a south electrode surface area. [Main component symbol description] 10 negative electrode 11 conductive substrate 12 semiconductor material 13 photosensitive dye layer 14 solar cell 15 electrolyte 16 positive electrode 20 step surface
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