| 1. | Study of photoluminescence enhancement of silver nanoparticles embedded in bao thin film
纳米粒子可见光波段的光致荧光增强现象研究 |
| 2. | The results show that enhanced low - dose - rate sensitivity ( eldrs ) exists in both domestic and imported bipolar transistors , and the npn transistors are more obvious than pnp transistors
结果表明：在辐照的剂量率范围内，无论是国产还是进口的双极晶体管，都有明显的低剂量率辐照损伤增强现象，且npn管比pnp管明显。 |
| 3. | ( 4 ) light - induced spectral change and its restore processes in the dark in nanocrystalline y2o3 : tb were studied . it was observed that the intensity in 4f5d band increased by ultraviolet and visible irradiation
( 4 )研究了光辐照引起的y _ 2o _ 3 ： tb荧光增强现象，观察到颗粒尺寸越小辐照光波长越短，光诱导荧光增强效果越明显。 |
| 4. | It has been found in the experiment that a reverse of image appeared in the wavelength range between 550nm to 620nm at which the enhancement of absorption of the probe beam appeared after a while of the probe time or readout time delaying
实验中发现，经过一段弛豫时间后，在出现吸收增强现象的550nm 620nm调制光波长范围内，有图像反转的现象。 |
| 5. | In this thesis , we studied optical properties of eu3 + and mn2 + doped zns nanocrystallites . the new results are as follows : 1 . zns : mn2 + ethanol colloids were synthesized and dispersed into pvb film . the luminescence enhancement of mn2 + was observed after ultraviolet irradiation
制备出纳米zns : mn2 +乙醇溶胶和pvb薄膜样品，均观察到紫外光辐照下的荧光增强现象，增长倍数超过20倍，高于以前的报导,并发现样品在固体薄膜和溶胶中有不同的荧光增强行为。 |
| 6. | With the aid of baffle movement , a technique named masking pretreatment and the method of vacuum deposition have been used to fabricate the ag - o - cs photoemissive thin films with internal field - assisted structure for the first time . the internal field - assisted photoemission characteristics of ag - o - cs thin films show that the photoelectric sensitivity is increased when the internal electric field is applied to the thin films , which indicates that the electric field has been effectively provided to the thin films by the above - mentioned internal field - assisted structure . such an enhanced photoemission is attributed to the variations in energy - band structure of ag - o - cs thin films , and which are considered to induce the lower - energy electrons to participate in the photoemission
通过掩膜预处理和挡板转移技术的配合，利用真空沉积方法首次制备了内场助结构ag - o - cs光电发射薄膜。 ag - o - cs薄膜内场助光电发射特性测试结果表明，该方法能够有效地实现ag - o - cs薄膜体内电场的加载与表面电极的引出，薄膜光电灵敏度随内场偏压的增大而上升。 ag - o - cs薄膜在内场作用下的光电发射增强现象与薄膜体内能带结构变化低能电子参与光电发射等物理机制有关。 |
| 7. | Furthermore , an enhanced up - conversion emission at 604nm induced by ultraviolet irradiation was observed for the nanosized zirconia powders doped with eu3 + ions . the relation between the enhanced fluorescence and the annealing temperature was investigated , and we found that the fluorescence increment decreased with increasing of the annealing temperature
同时我们观察到了eu ~ ( 3 + )掺杂的二氧化锆纳米材料在紫外光照射下有荧光增强现象，研究了荧光增强幅度和样品退火温度及尺寸的关系，发现随退火温度的提高，样品荧光增强的幅度变小。 |
| 8. | 5 . the luminescence enhancement of eu3 + was also observed after ultraviolet irradiation but was weaker than the zns : mn2 + and the branch ratio of 5d0 - 7f0 increased after irradiation . it indicates probably the contribution from the centers in the surface of nanoparticles increased
在紫外光的辐照下首次观察到eu3 +离子发光的荧光增强现象，辐照后5d0 < wp = 5 > 7f0发射强度分支比增加，表明对称性较低的发光中心对发光的贡献增加，可能是处于颗粒表面的eu3 +离子对发光的贡献增加。 |
