The subject invention provides compositions of and methods of using carbo- and heterocyclic spiro compounds as donor materials for organic photovoltaic (OPV) devices. In preferred embodiments, spiro compounds comprising triarylamine and derivatives thereof demonstrate effective hole-transporting properties in OPV devices, achieving up to 5.46%of power conversion efficiency. Advantageously, preferred compounds provided herein are thermally stable and volatile enough to form thin films for the photoactive layer of an OPV device by vacuum deposition or by spin-coating.
                            该发明提供了碳和杂环
螺环化合物作为有机光伏(OPV)器件的供体材料的组合物和使用方法。在优选实施例中,包含三芳基胺及其衍
生物的
螺环化合物在OPV器件中展现出有效的传输正空穴的特性,实现了高达5.46%的功率转换效率。优选提供的化合物在热稳定性和挥发性方面具有优势,足以通过真空沉积或旋涂形成薄膜,作为OPV器件的光活性层。