采用高温固相法制备了一种近紫外和蓝光激发型Ca2BO3ClEu2+黄色发光材料。以460 nm蓝色光为激发源，测得Ca2BO3ClEu2+材料的发射光谱为一单峰宽谱，主峰位于573 nm；监测573 nm发射峰，所得激发光谱覆盖300～500 nm，主峰位于413 nm和475 nm。通过改变Eu2+的掺杂量，研究了材料的晶体结构及发射强度等的变化情况。研究结果显示，Eu2+的掺杂并未影响材料的晶体结构；但发射强度却发生了很大的变化，Eu2+的摩尔分数为2%时，强度最大；利用Dexter理论对Eu2+在Ca2BO3Cl中的浓度淬灭机理进行了研究，得出其为电偶极电偶极相互作用。

The yellow phosphor Ca2BO3ClEu2+ was synthesized by high temperature solid state reaction method, and the results show that the phosphor can be excited by the near-ultraviolet and blue light. Under the 460 nm excitation, the phopshor presents a single broad emission band, in which the peak appeared at 573 nm. Montoried at 573 nm, the excitation spectrum cotained 300～500 nm excitation band, and the excitation peaks located at 413 nm and 475 nm, respectively. The effect of Eu2+ concentration on the crystal structure and emission intensity was studied. And the results show that the all patterns data well agreed with the standard data. However, the emission intensity of the phosphor was influenced by the Eu2+ concentration, and the intensity reaches maximal value at 2% Eu2+. According to the Dexter theory, the concentration quenching mechanism is the d-d interaction.