發(fā)布時(shí)間：2018-01-04 23:05

  本文關(guān)鍵詞：新型純有機(jī)光敏染料的合成及其應(yīng)用于染料敏化太陽能電池的研究　出處：《大連理工大學(xué)》2014年博士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 太陽能電池 光伏器件 純有機(jī)染料

【摘要】：光敏染料是染料敏化太陽能電池的核心部分,設(shè)計(jì)、開發(fā)高效穩(wěn)定的光敏染料對(duì)于提升電池的光電轉(zhuǎn)換效率以及工業(yè)化應(yīng)用有重要意義。本論文設(shè)計(jì)合成了幾個(gè)系列純有機(jī)光敏染料,系統(tǒng)地研究了染料的物理、電化學(xué)性質(zhì)對(duì)染料敏化太陽能電池光伏性能的影響。 異喹啉陽離子作為吸電子體引入到D-π-A體系中,設(shè)計(jì)合成了一系列不含乙烯基的光敏染料。應(yīng)用于染料敏化太陽能電池時(shí),染料JH304敏化的太陽能電池獲得了最高7.3%(Jsc=14.40mA·cm-2,Voc=684mV,FF=74.4%)的光電轉(zhuǎn)換效率。當(dāng)采用不同數(shù)目-CH2-單元將異喹啉陽離子與羧基分開時(shí),隨著-CH2-數(shù)目的增加,電池的效率由6.8%降低到4.2%。然而,與異喹啉陽離子染料不同,-CH2-數(shù)目的增加使得繞丹寧染料的效率由4.1%提高到4.5%。 羥基作為吸附基團(tuán)引入D-π-A體系中,設(shè)計(jì)合成了一系列吡啶陽離子光敏染料,研究了不同的供電子體對(duì)染料光伏性能的影響。最終,染料JH401敏化的太陽能電池獲得了2.6%的光電轉(zhuǎn)換效率,且在440nm處獲得了80%的IPCE值,這也是到目前為止羥基吸附染料獲得的最高IPCE值。 采用菲醌衍生物為π橋基,設(shè)計(jì)合成了含有不同供電子體和橋基的光敏染料。應(yīng)用于染料敏化太陽能電池時(shí),染料JH203敏化的太陽能電池獲得了6.0%(Jsc=11.13mA·cm-2,Voc=720mV,FF=74.9%)的光電轉(zhuǎn)換效率。老化測(cè)試表明,菲醌衍生物染料具有良好的穩(wěn)定性。 基于吩噻嗪的D-π-A與D-A-π-A結(jié)構(gòu)光敏染料研究表明,D-A-π-A結(jié)構(gòu)光敏染料表現(xiàn)出更寬、更紅的吸收光譜,但是摩爾消光系數(shù)明顯降低。在同樣的測(cè)試條件下,D-π-A結(jié)構(gòu)光敏染料獲得了7.5%(Jsc=16.36mA·cm-2,Voc=706mV,FF=64.5%)的光電轉(zhuǎn)換效率,而D-A-π-A結(jié)構(gòu)染料敏化的太陽能電池產(chǎn)出了6.4%(Jsc=14.71mA.cm-2,Voc=645mV,FF=67.3%)的光電轉(zhuǎn)換效率。
[Abstract]:The dye is the core part of the dye-sensitized solar cell design, development of efficient and stable photosensitive dyes have important significance for promoting the battery photoelectric conversion efficiency and industrial application. Several series of pure organic dyes were designed and synthesized in this paper, systematically studied the dye physics effect on the electrochemical properties on the photovoltaic performance of dye-sensitized solar cells.
Isoquinoline cation as electron withdrawing was introduced into D- PI -A system, a series of vinyl containing photosensitive dyes were designed and synthesized. Applied to dye-sensitized solar cell, dye sensitized JH304 7.3% was the highest (Jsc=14.40mA, cm-2, Voc=684mV, FF= 74.4%) of the photoelectric conversion efficiency when using different. The number of -CH2- units will be separated from the isoquinoline cation and the carboxyl group, with the increase of the number of -CH2-, the battery efficiency decreased from 6.8% to 4.2%.. However, unlike isoquinoline cationic dyes, increase the number of -CH2- makes the efficiency of rhodanine dyes increased from 4.1% to 4.5%.
Hydroxyl groups were introduced on the D- adsorption as PI -A system, a series of pyridinium cationic photosensitive dyes were designed and synthesized, studied the effect of different power supply on the photovoltaic performance of dye. Finally, dye sensitized JH401 solar cell photoelectric conversion efficiency was 2.6%, and the IPCE value of 80% in 440nm, the highest IPCE this is so far the hydroxyl value obtained by adsorption of the dye.
Using Phenanthrenequinone derivatives as PI bridge, photosensitive dyes containing different electron donor and bridge is designed and synthesized. Applied to dye-sensitized solar cell, dye sensitized JH203 was 6% (Jsc=11.13mA, cm-2, Voc=720mV, FF=74.9%) of the photoelectric conversion efficiency. The aging test showed that the dye has good Phenanthrenequinone derivatives stability.
Phenothiazine D- PI -A and D-A- PI -A structure of photosensitive dye based studies suggest that D-A- PI -A structure photosensitive dyes exhibit wider absorption spectrum, more red, but the molar extinction coefficient decreased obviously. In the test under the same conditions, the D- PI -A structure obtained 7.5% photosensitive dyes (Jsc=16.36mA, cm-2, Voc=706mV FF=64.5%), the photoelectric conversion efficiency of solar cells, and D-A- PI -A structure of dye sensitized output 6.4% (Jsc=14.71mA.cm-2, Voc=645mV, FF=67.3%) of the photoelectric conversion efficiency.

【學(xué)位授予單位】：大連理工大學(xué)
【學(xué)位級(jí)別】：博士
【學(xué)位授予年份】：2014
【分類號(hào)】：TM914.4

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本文編號(hào)：1380472