Scientific review of laser protective materials is currently primarily focused on improving linear transmittance and developing the optical limiting ability. Due to its unique large π electronic conjugated structure, phthalocyanine has become a successful optical limiting material. Thin films of manganese (III) phthalocyanine chloride (MnPcCl) were formed on FTO substrates using traditional thermal deposition techniques. The X-ray diffraction demonstrated that there is an amorphous structure for MnPcCl films. AFM's surface morphology shows that the MnPcCl film is homogeneous and formed by spherical and elliptical nanoparticles. The thickness dependences of both linear and nonlinear optical properties of MnPcCl films were also investigated via UV–Vis-IR measurements. The absorption coefficient examination indicated that the films were distinguished by an indirect transition with two energy gaps. The power of the He–Ne (633 nm) and green (533 nm) lasers were used to estimate optical limiting behavior. The MnPcCl film deposited on the FTO revealed a high optical laser limitation that could be acceptable for different nonlinear optical devices, like laser filters.

激光防护材料的科学审查目前主要集中在提高线性透射率和开发光学限制能力。由于其独特的大π电子共轭结构，酞菁已成为一种成功的光限幅材料。使用传统的热沉积技术在 FTO 基板上形成锰 (III) 酞菁氯化物 (MnPcCl) 薄膜。X 射线衍射表明 MnPcCl 薄膜存在无定形结构。AFM 的表面形态表明 MnPcCl 薄膜是均质的，由球形和椭圆形纳米颗粒形成。还通过 UV-Vis-IR 测量研究了 MnPcCl 薄膜的线性和非线性光学特性的厚度依赖性。吸收系数检查表明薄膜的特征在于具有两个能隙的间接跃迁。He-Ne (633 nm) 和绿色 (533 nm) 激光器的功率用于估计光学限制行为。沉积在 FTO 上的 MnPcCl 薄膜显示出高光学激光限制，这对于不同的非线性光学设备（如激光滤波器）来说是可以接受的。