Rao Ravulakollu Srinivasa, Singh Surya Prakash
Polymers and Functional Materials Division, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad, 500007, India.
Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, 201002, India.
Chemistry. 2020 Dec 15;26(70):16582-16593. doi: 10.1002/chem.202001126. Epub 2020 Sep 30.
Organic molecules can absorb or emit light in UV, visible and infra-red (IR) region of solar radiation. Fifty percent of energy of solar radiation lies in the IR region of solar spectrum and extended π-conjugated molecules containing low optical band gap can absorb NIR radiations. Recently IR molecules have grabbed the attention of synthetic chemists. Although only few molecules have been reported so far such as derivative of BODIPY, naphthalimide, porphyrins, perylene, BBT etc., they have shown highest absorbing capacity towards greater than 1100 nm. These compounds have potential applications in different fields, such as for biomedical and optoelectronic applications. In this review, we present different classes of light-harvesters with harvesting range above 1000 nm.
有机分子可以在太阳辐射的紫外、可见光和红外（IR）区域吸收或发射光。太阳辐射能量的50%位于太阳光谱的红外区域，含有低光学带隙的扩展π共轭分子可以吸收近红外辐射。最近，红外分子引起了合成化学家的关注。尽管到目前为止仅报道了少数分子，如BODIPY衍生物、萘二甲酰亚胺、卟啉、苝、BBT等，但它们对大于1100 nm的光显示出最高吸收能力。这些化合物在不同领域具有潜在应用，如生物医学和光电子应用。在本综述中，我们展示了不同类别的捕光剂，其捕光范围超过1000 nm。
