用于室内和IoT应用的具有高电压的新型杂化有机-无机铁光伏钙钛矿纳米颗粒
New hybrid organic-inorganic ferrophotovoltaic perovskites nanoparticles with high voltage for indoor and IoT applications
摘要：
对于太阳光谱，光伏有源层的理想带隙为约1.3eV。然而，具有这种值的氧化物是罕见的。迄今为止，作为光伏活性层研究最多的氧化物之一是氧化亚铜Cu 2 O。它的带隙约为2.1 eV，因此对于太阳光谱来说并不理想。电源转换效率一般不超过4%。在本文中，我们建议研究一种新兴类型的太阳能电池，是基于铁电性。在这种类型的太阳能电池中，与传统太阳能电池不同，不一定需要pn结。这种类型的电池开始获得令人感兴趣的转换效率，但是其机制仍然没有得到很好的理解，并且必须解决几个材料和工程挑战。本文的目的是发起一种基于具有合适带隙宽度的新型无机材料和有机材料（生物聚合物）的创新光伏技术。这些氧化物更稳定。我们合成的铁电材料吸收了大部分的太阳光谱，减少了带隙宽度。将PZN-4.5PT纳米颗粒分散在生物聚合物基质中。采用旋涂法在ITO衬底上成功地制备了无机纳米粒子嵌入生物聚合物的杂化薄膜。结构，形态和电气性能进行了研究。在3550 lux的LED光照下，开路电压为5.17和5.86 V，光照15和30 min的最佳功率转换效率分别为21.83%和31.62%。
英文摘要：
The ideal band gap for a photovoltaic active layer for the solar spectrum is around 1.3 eV. However oxides with such values are rare. One of the most studied oxides to date as a photovoltaic active layer is the cuprous oxide Cu2O. Its band gap is around 2.1 eV and is therefore not ideal for the solar spectrum. Power Conversion Efficiency generally do not exceed 4%. In this paper we propose to study an emerging type of solar cell that is based on ferroelectricity. In this type of solar cell, a p-n junction is not necessarily required, unlike conventional solar cells. Interesting conversion efficiencies are beginning to be obtained with this type of cell, however the mechanisms are still not well understood and several material and engineering challenges must be addressed. The objective of this paper is to initiate an innovative photovoltaic technology based on novel inorganic with suitable bandgap widths and organic materials (biopolymer). These oxides are more stables. We synthesized ferroelectric materials that absorb a large part of the solar spectrum with reduced bandgap widths. PZN-4.5PT nanoparticles were dispersed in a biopolymer matrix. Hybrid thin films with these inorganic nanoparticles embedded in a biopolymer have been successfully fabricated by spin coating on ITO substrate. Structural, morphological and electrical properties were investigated. The best Power Conversion Efficiencies measure under a light LED illumination of 3550 lux are respectively 21.83 % and 31.62 % for 15 and 30 min light exposition with an open-circuit voltage of 5.17 and 5.86 V.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
