160 00 Moscow point has been 100 corrected for Ps quenching in air-filled 80 silica gel. 60 40 RTE Tokyo Data (wfo Moscow) 0 Corected Moscow Data 20 ◆ GMR Data 0 10 100 I(nm) A comparison of the RTE model with experimental data acquired in bulk materials. PDF文件使用"pdfFactory”试用版本创建ww.fineprint.cn
A comparison of the RTE model with experimental data acquired in bulk materials. Moscow point has been corrected for Ps quenching in air-filled silica gel. PDF 文件使用 "pdfFactory" 试用版本创建 Ìwww.fineprint.cn
APPLIED PHYSICS LETTERS VOLUME 76,NUMBER 10 6 MARCH 2000 Determination of pore-size distribution in low-dielectric thin films D.W.Gidleya)and W.E.Frieze Department of Physics,University of Michigan,An Arbor,Michigan 48109 T.L.Dull,J.Sun,and A.F.Yee Depariment of Materials Science and Engineering,University of Michigan.Ann Arbor,Michigan 48109 The sample films studied were formed by spin casting a homogeneous mixture of poly(methylsilsesquioxane)(MSSQ)and 10% by weight poly(caprolactone)(PCL), Sample unfoamed:a degradable porogen.Upon heating to 250C the MSSQ prepolymer polymerizes and crosslinks,causing the PCL phase to separate into domains. Sample foamed:At 430C the PCL has degraded and volatilized, leaving behind a mesoporous,0.8-mm-thick MSSQ film with a dielectric constant of 2.5. PDF文件使用"pdfFactory”试用版本创建l.fineprint.cn
The sample films studied were formed by spin casting a homogeneous mixture of poly(methylsilsesquioxane) (MSSQ)and 10% by weight poly(caprolactone)(PCL), Sample unfoamed: a degradable porogen. Upon heating to 250 °C the MSSQ prepolymer polymerizes and crosslinks, causing the PCL phase to separate into domains. Sample foamed: At 430 °C the PCL has degraded and volatilized, leaving behind a mesoporous, 0.8- mm-thick MSSQ film with a dielectric constant of 2.5. PDF 文件使用 "pdfFactory" 试用版本创建 Ìwww.fineprint.cn ÿÌ
103 104 45 and 120 ns Foamed 典型的介孔寿命分量 10 Unfoamed 102 0.4 ns,1.5 ns,6 ns,and a low intensity component at 140 ns consistent with backscattered 不存在介孔寿命分量(10-120ns positrons forming Ps in vacuum. 10 100 200 300 400 500 600 700 800 Time (ns) PDF文件使用"pdfFactory”试用版本创建www.fineprint.cn
0.4 ns, 1.5 ns, 6 ns, and a low intensity component at 140 ns consistent with backscattered positrons forming Ps in vacuum. 不存在介孔寿命分量(10-120ns) 45 and 120 ns 典型的介孔寿命分量 PDF 文件使用 "pdfFactory" 试用版本创建 www.fineprint.cn
160 TTTTT 25℃ 140 Cubes ----- Channels 120 100 Tao-Eldrup Classical 色 Regime Regime 80 60 250℃ 40 Cubes Channels 20 0 10 100 (nm) The effect of pore geometry at two sample temperatures PDF文件使用"pdfFactory”试用版本创建选.fineprint.cn
The effect of pore geometry at two sample temperatures PDF 文件使用 "pdfFactory" 试用版本创建 Ìwww.fineprint.cn ÿÌ
120 110 100 1=8.0m 90 1=7.0m 1=6.0m 80 70 60 200 300 400 500 600 700 800 Temperature(K) 。 Ps lifetimes measured in a low-k porous silica film (NanoglassTM A10B)as a function of film temperature and calculation according to the 3- dimentional rectangular Tao-Eldrup model. PDF文件使用"pdfFactory”试用版本创建w,fineprint..cn
• Ps lifetimes measured in a low-k porous silica film (NanoglassTM A10B) as a function of film temperature and calculation according to the 3- dimentional rectangular Tao-Eldrup model. PDF 文件使用 "pdfFactory" 试用版本创建 Ìwww.fineprint.cn Ì