本文關(guān)鍵詞：n-型自摻雜富勒烯銨鹽及其自組裝的研究　出處：《浙江大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： n-型自摻雜 富勒烯銨鹽 自組裝 anion-π作用 靜電作用 π-π作用 高電導(dǎo)率

【摘要】：有機(jī)太陽能電池(OSCs)和鈣鈦礦太陽能電池(pero-SCs)因具有可溶液加工、結(jié)構(gòu)簡單且可印刷制作大面積柔性器件等優(yōu)點(diǎn),成為近年來最具發(fā)展前景的兩類光伏技術(shù)。富勒烯及其衍生物是一類典型的n-型半導(dǎo)體材料,且具有優(yōu)異的電子傳輸性能,作為太陽能電池陰極界面修飾層材料發(fā)揮了重要作用。該類材料不僅可以有效提高器件的能量轉(zhuǎn)換效率(PCE),還能夠改善其整體穩(wěn)定性,因此受到諸多關(guān)注。本論文在先前研究工作的基礎(chǔ)上,對不同陰離子的富勒烯銨鹽的n-型自摻雜及其自組裝特性進(jìn)行了系統(tǒng)性研究,并發(fā)現(xiàn)和表征了一種獨(dú)特的二維網(wǎng)絡(luò)狀超分子結(jié)構(gòu)。主要內(nèi)容如下：1.在n-型自摻雜富勒烯銨碘鹽(PCBANI)構(gòu)效關(guān)系研究的基礎(chǔ)上,對另外兩種不同鹵素離子的富勒烯銨鹽(PCBANBr和PCBANC1)的自摻雜特性及結(jié)構(gòu)進(jìn)行了表征,并進(jìn)一步探究了該類富勒烯衍生物摻雜效應(yīng)和導(dǎo)電性能的影響因素。2. PCBANI能夠形成一種層狀有序堆積的自組裝結(jié)構(gòu),通過XRD、HRTEM、 SEM、XPS及模擬計(jì)算等手段對該結(jié)構(gòu)進(jìn)行了表征和驗(yàn)證,闡釋了碘離子-C60(anion-π)作用、靜電作用和C60核的π-π作用三者平衡驅(qū)動(dòng)PCBANI自組裝的機(jī)制。碘離子在其自組裝過程中發(fā)揮了重要作用：它通過與富勒烯核形成anion-π作用將碘離子周圍C60的π共軛體系相互連接,從而形成了一種二維網(wǎng)絡(luò)結(jié)構(gòu)。顯然,具有分子間緊密有序堆積結(jié)構(gòu)的自組裝體能夠有效提高材料的電子傳輸性能,因此我們通過單載子電子器件(Electron-Only Device)和有機(jī)場效應(yīng)晶體管(OFET)對PCBANI的有序薄膜和無序薄膜進(jìn)行了測試,進(jìn)一步證明了自組裝結(jié)構(gòu)在改善富勒烯導(dǎo)電性能方面具有顯著優(yōu)勢。3.對另外幾種富勒烯銨鹽(PCBDANI、PCBANBr、PCBANBr-P、PCBANCl)的自組裝行為進(jìn)行了研究,為調(diào)控自組裝結(jié)構(gòu)和開發(fā)該類富勒烯衍生物的應(yīng)用奠定了基礎(chǔ)。本論文工作對控制電子傳輸材料有序堆積和抑制缺陷形成的自組裝研究提供了一種有效策略。在此基礎(chǔ)上,n-型自摻雜富勒烯能夠自組裝為多種新型結(jié)構(gòu)(如納米線、納米管、納米粒子等),為進(jìn)一步開發(fā)其在光伏器件、納米電子等方面的新功能奠定了堅(jiān)實(shí)基礎(chǔ)。
[Abstract]:Organic solar cell (OSCs) and perovskite solar cell (pero-SCs) because of its solution process, simple structure and can be used for printing large flexible devices has become the two kind of photovoltaic technology in recent years. The most promising fullerenes are n- type semiconductor material for a class of typical, and has electronic transmission performance excellent, as the cathode interface modification layer of solar cell materials play an important role. This kind of material can not only improve the efficiency of energy conversion devices (PCE), but also can improve the overall stability, so it has been a lot of attention. Based on the previous research work on the n- type of fullerene anions from different ammonium salts doping and self-assembly properties were systematically studied and the discovery and characterization of a 2D network like supramolecular structure unique. The main contents are as follows: 1. self doped in n- Hetero fullerene ammonium iodide (PCBANI) on the basis of the study of structure-activity relationship, in addition to two different halogen ion fullerene salts (PCBANBr and PCBANC1) of the self doping properties and structure characterization, and further explores the influence of fullerene doping effect and conductivity factor of.2. PCBANI can form self-assembled structures a layered, ordered by XRD, HRTEM, SEM, XPS and simulation calculation methods were used to characterize and validate the structure, explains the iodine ion -C60 (anion- PI) effect, electrostatic effect and C60 core tt-tt for the balance of the three driving mechanism of PCBANI self-assembly. Iodine ions play an important role in the self-assembly process: it is through the formation of nuclear and fullerene anion- PI effect conjugation system of iodine ions around C60 are connected to each other, thus forming a two-dimensional network structure. Obviously, with close intermolecular Ordered self-assembly structure can effectively improve the electron transport properties of materials, so we use single carrier electronic devices (Electron-Only Device) and organic field-effect transistors (OFET) ordered film on PCBANI and disordered films were tested, further proved the self-assembly structure in improving the conductive properties of fullerenes has significant advantage of.3. other kinds of fullerenes (PCBDANI, PCBANBr, PCBANBr-P ammonium salt, PCBANCl) self-assembly behavior was studied, the basis for the application of regulation lay the self-assembled structure and the development of fullerene derivatives. The control of electron transport materials and ordered self-assembly of inhibition of defect formation provides an effective strategy. On this basis, the n- type self doped fullerenes can self assemble into a variety of new structures (such as nanowires, nanotubes, nanoparticles, etc.) for further It lays a solid foundation for the development of its new functions in photovoltaic devices, nanoscale and so on.

【學(xué)位授予單位】：浙江大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：O641.3;TM914.4

【參考文獻(xiàn)】

相關(guān)期刊論文 前1條

1 薛啟帆;孫辰;胡志誠;黃飛;葉軒立;曹鏞;;鈣鈦礦太陽電池研究進(jìn)展:薄膜形貌控制與界面工程[J];化學(xué)學(xué)報(bào);2015年03期

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本文編號：1358221