KTiOPO₄ (KTP) crystals are prepared by the top‐seeded solution growth method. Effects of space irradiation on KTP crystal structure have been investigated using Space Tribology in‐situ Analysis System: KTP crystal (001) surfaces were irradiated by atomic oxygen (AO) and electron (EL), and the electronic structure was analyzed using X‐ray photoelectron spectroscopy (XPS). The AO has strong oxidizing property which results in decreases in the intensity of C 1s peak. The content of P increases after AO/EL irradiation, while the content of Ti decreases after AO irradiation. The reduced ΔBE (O─P) shows stronger ionicity of P─O bonds after AO/EL irradiation compared with pristine KTP crystal. The deconvolution of O 1s photoemission line reveals that peaks at 530.8–531.0 and 530.1 eV are assigned to O─P and O─Ti bonds, respectively. Additionally, variations in the trend of O─P bond and O─Ti bond contents are resembled to that of P and Ti after AO/EL irradiation.

中文翻译：

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原子氧和电子辐照对KTiOPO4晶体电子结构的影响

钛白粉₄（KTP）晶体是通过种顶溶液生长法制备的。使用空间摩擦原位分析系统研究了空间辐照对KTP晶体结构的影响：用原子氧（AO）和电子（EL）辐照KTP晶体（001）的表面，并使用X射线分析了电子结构光电子能谱（XPS）。AO具有很强的氧化性，导致C 1s峰强度降低。AO / EL照射后，P的含量增加，AO照射后，Ti的含量减少。与原始KTP晶体相比，还原的ΔBE（OP）在AO / EL辐照后显示出较强的PO键离子化。O 1s光发射谱线的反卷积表明，在530.8–531.0和530.1 eV处的峰分别分配给O-P键和O-Ti键。此外，