TiO_2/PEN表面改性对柔性DSSC性能的影响
|
摘要
对于柔性DSSC的透明光阳极而言,在低温下制备出结晶性高、颗粒间结合性能良好的TiO_2薄膜是其获得优异光电性能的关键。本文通过对比三种不同浆料添加剂(盐酸、乙二醇乙醚、小颗粒凝胶)对DSSC光电性能的影响,发现小颗粒凝胶的加入可以显著提高器件的光电性能。在此基础上,优化了小颗粒凝胶添加量及退火工艺,得出了最佳制备工艺条件,最终获得短路电流密度为8.14mA/cm~2、填充因子为67.9%、光电转化效率为4.1%的DSSC。进一步研究表明,小颗粒凝胶的加入一方面可以增强TiO_2颗粒之间的连接,从而提高TiO_2的成膜质量;另一方面可以增加TiO_2薄膜对光的散射,从而提高电池的吸光率。
For transparent photoanode of flexible DSSC,preparing well-interconnected TiO_2 films with high crystallinity at low temperature is the key to obtaining excellent photoelectric properties.After comparing three annexing agents(hydrochloric acid,2-ethoxyethanol,nanoglue gel),we discovered that DSSC with nanoglue gel achieved the best performance of photoelectric properties.On this basis,we varied amounts of the nanoglue gel in the TiO_2 paste and changed the annealing temperature in order to achieve the optimum parameter.Finally,we determined ultimate parameters of the DSSC and achieved 8.14mA/cm~2 short current,67.9%fill factor and 4.1% power conversion efficiency.Adding nanogluegel,on one hand,could improve the film-forming characteristic of TiO_2 paste by enhancing interconnection between TiO_2 particles,on the other hand,it could enhance light scattering of TiO_2 film in order to improve the absorbance of DSSC.
For transparent photoanode of flexible DSSC,preparing well-interconnected TiO_2 films with high crystallinity at low temperature is the key to obtaining excellent photoelectric properties.After comparing three annexing agents(hydrochloric acid,2-ethoxyethanol,nanoglue gel),we discovered that DSSC with nanoglue gel achieved the best performance of photoelectric properties.On this basis,we varied amounts of the nanoglue gel in the TiO_2 paste and changed the annealing temperature in order to achieve the optimum parameter.Finally,we determined ultimate parameters of the DSSC and achieved 8.14mA/cm~2 short current,67.9%fill factor and 4.1% power conversion efficiency.Adding nanogluegel,on one hand,could improve the film-forming characteristic of TiO_2 paste by enhancing interconnection between TiO_2 particles,on the other hand,it could enhance light scattering of TiO_2 film in order to improve the absorbance of DSSC.
引文
1杜文龙,刘永生,司晓东,等.材料科学与工程学报,2015(4),613.
2 朱永安,唐吉玉,潘保瑞,等.材料科学与工程学报,2015(5),680.
3 赵莉南,王藜,胡晓斌,等.材料科学与工程学报,2011(6),811.
4 Green Martin A,Emery K,King David L,et al.Progress in Photovoltaics Research&Applications,2011,19(1),84.
5 O'Regan B,Grtzel M.Nature,1991,353(6346),737.
6 Kawano R,Matsui H,Matsuyama C,et al.Journal of Photochemistry and Photobiology A:Chemistry,2004,164(1),87.
7 Torres A M A,Valenc9a de A A S,Cipollone D T,et al.ACS Applied Materials&Interfaces,2016,8(37),24659.
8 Hagfeldt A,Boschloo G,Lindstr9m H,et al.Coordination Chemistry Reviews,2004,248(13),1501.
9 Sahito I A,Sun K C,Arbab A A,et al.Electrochimica Acta,2015,173,164.
10 Lin S Y,Wu J J.Electrochimica Acta,2015,152,61.
11 Murakami T N,Kijitori Y,Kawashima N,et al.Journal of Photochemistry&Photobiology A:Chemistry,2004,164(1-3),187.
12 Prachopchok P,Thanachayanon C,Osotchan T.Advanced Materials Research,2016,1131,169.
13 Kijitori Y,Ikegami M,Miyasaka T.Chemistry Letters,2007,36(1),190.
14 Nemoto J,Sakata M,Hoshi T.Journal of Electroanalytical Chemistry,2007,599(1),23.
15 Zhang D,Yoshida T,Furuta K,et al.Journal of Photochemistry&Photobiology A:Chemistry,2004,164(1-3),159.
16 Marcano D C,Kosynkin D V,Berlin J M,et al.ACS Nano,2010,4(8),4806.
17 Tan B,Wu Y.The Journal of Physical Chemistry B,2006,110(32),15932.
18 Lee S,Cho I S,Lee J H,et al.Chemistry of Materials,2010,22(6),1958.
19 Li Y,Lee W,Lee D K,et al.Applied Physics Letters,2011,98(10),51.
2 朱永安,唐吉玉,潘保瑞,等.材料科学与工程学报,2015(5),680.
3 赵莉南,王藜,胡晓斌,等.材料科学与工程学报,2011(6),811.
4 Green Martin A,Emery K,King David L,et al.Progress in Photovoltaics Research&Applications,2011,19(1),84.
5 O'Regan B,Grtzel M.Nature,1991,353(6346),737.
6 Kawano R,Matsui H,Matsuyama C,et al.Journal of Photochemistry and Photobiology A:Chemistry,2004,164(1),87.
7 Torres A M A,Valenc9a de A A S,Cipollone D T,et al.ACS Applied Materials&Interfaces,2016,8(37),24659.
8 Hagfeldt A,Boschloo G,Lindstr9m H,et al.Coordination Chemistry Reviews,2004,248(13),1501.
9 Sahito I A,Sun K C,Arbab A A,et al.Electrochimica Acta,2015,173,164.
10 Lin S Y,Wu J J.Electrochimica Acta,2015,152,61.
11 Murakami T N,Kijitori Y,Kawashima N,et al.Journal of Photochemistry&Photobiology A:Chemistry,2004,164(1-3),187.
12 Prachopchok P,Thanachayanon C,Osotchan T.Advanced Materials Research,2016,1131,169.
13 Kijitori Y,Ikegami M,Miyasaka T.Chemistry Letters,2007,36(1),190.
14 Nemoto J,Sakata M,Hoshi T.Journal of Electroanalytical Chemistry,2007,599(1),23.
15 Zhang D,Yoshida T,Furuta K,et al.Journal of Photochemistry&Photobiology A:Chemistry,2004,164(1-3),159.
16 Marcano D C,Kosynkin D V,Berlin J M,et al.ACS Nano,2010,4(8),4806.
17 Tan B,Wu Y.The Journal of Physical Chemistry B,2006,110(32),15932.
18 Lee S,Cho I S,Lee J H,et al.Chemistry of Materials,2010,22(6),1958.
19 Li Y,Lee W,Lee D K,et al.Applied Physics Letters,2011,98(10),51.