本文選題：三組分聚合　切入點(diǎn)：聚合物太陽電池　出處：《化學(xué)學(xué)報(bào)》2017年08期

【摘要】：通過微波輔助炔、醛、胺三組分一鍋法聚合反應(yīng)合成了一系列基于萘并二酰亞胺的聚合物P1~P4,并通過核磁表征確認(rèn)其結(jié)構(gòu).目標(biāo)聚合物的光物理與電化學(xué)性能研究表明,由于聚合物主鏈共軛被打斷,聚合物的吸收和能級(jí)主要由其重復(fù)單元決定.通過開爾文探針與電子順磁共振譜研究了聚合物側(cè)鏈與主鏈胺基不同的化學(xué)環(huán)境對(duì)其電極功函調(diào)節(jié)以及自摻雜行為的影響.發(fā)現(xiàn)由于主鏈胺基與芐基、炔丙基相連,胺基氮的電子云密度顯著降低,導(dǎo)致聚合物形成界面偶極能力減弱,從而使其電極功函調(diào)節(jié)能力與自摻雜強(qiáng)度都大大降低.所有聚合物中P1具有良好的醇溶性,可被用于聚合物太陽電池的陰極界面層.以PTB7-Th:PC71BM為活性層,P1為陰極界面層的聚合物太陽電池器件的光電轉(zhuǎn)換效率達(dá)到9.34%.
[Abstract]:A series of polymers based on naphthalenediimide (Naphthalenediimide) were synthesized by microwave-assisted one-pot polymerization of acetylene, aldehydes and amines, and their structures were confirmed by NMR characterization. The photophysical and electrochemical properties of the target polymers were studied. Because the conjugation of the main chain of the polymer was interrupted, The absorption and energy levels of polymers are mainly determined by their repeating units. By using Kelvin probe and electron paramagnetic resonance spectroscopy (EPR), the electrode functional regulation and self-doping behavior of polymers with different side chain and main chain amine groups have been studied by means of electron paramagnetic resonance spectroscopy (EPR). Due to the main chain amino group and benzyl group, The electron cloud density of amino nitrogen decreases significantly, which leads to the decrease of the dipole ability of the polymer interface, which greatly reduces the electrode function regulation ability and the self-doping strength. All the polymers have good alcohol solubility, and P1 has good alcohol-solubility in all polymers. It can be used in the cathode interface layer of polymer solar cells. The photoelectric conversion efficiency of polymer solar cell devices with PTB7-Th:PC71BM as the active layer and P1 as the cathode interface layer is 9.34.
【作者單位】： 華南理工大學(xué)高分子光電材料與器件研究所發(fā)光材料與器件國家重點(diǎn)實(shí)驗(yàn)室;
【基金】：國家自然科學(xué)基金(No.21490573)資助~~
【分類號(hào)】：O631.5;TM914.4
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本文編號(hào)：1666892