搜索结果: 1-9 共查到“材料科学 Gap”相关记录9条 . 查询时间(0.031 秒)
Morphology Characterization of Low Band Gap Polymer-based Organic Photovoltaics
Morphology organic photovoltaic phase separation crystallization diffusion
2014/11/21
In bulk heterojunction (BHJ) thin film organic photovoltaics (OPV), morphology control is critical to obtain good device efficiency. Nanoscale phase separation that creates bicontinuous interpenetrati...
Band gap control via tuning of inversion degree in CdIn$_2$S$_4$ spinel
Band gap control tuning inversion degree CdIn$_2$S$_4$ spinel
2012/2/24
Based on theoretical arguments we propose a possible route for controlling the band-gap in the promising photovoltaic material CdIn$_2$S$_4$. Our \textit{ab initio} calculations show that the experime...
Wide band gap tunability in complex transition metal oxides by site-specific substitution
Wide band gap tunability complex transition metal oxides site-specific substitution
2012/2/24
Fabricating complex transition metal oxides with a tuneable band gap without compromising their intriguing physical properties is a longstanding challenge. Here we examine the layered ferroelectric bi...
Band gap tuning in ferroelectric Bi4Ti3O12 by alloying LaTMO3 (TM = Ti, V, Cr, Mn, Co, Ni, and Al)
Band gap tuning ferroelectric Bi4Ti3O12 alloying LaTMO3
2012/2/24
We fabricated ferroelectric Bi4Ti3O12 (BiT) single crystalline thin films site-specifically substituted with LaTMO3 (TM = Al, Ti, V, Cr, Mn, Co, and Ni) on SrTiO3 substrates by pulsed laser epitaxy. W...
Theoretical study of the zero-gap organic conductor α-(BEDT-TTF)2I3
organic conductor α-(BEDT-TTF)2I3 massless Dirac fermion
2010/1/19
The quasi-two-dimensional molecular conductor α-(BEDT-TTF)2I3 exhibits anomalous transport phenomena where the temperature dependence of resistivity is weak but the ratio of the Hall coefficient at 10...
Experimental study of organic zero-gap conductor α-(BEDT-TTF)2I3
organic massless Dirac Fermions system transport phenomena zero mode
2010/1/19
A zero-gap state with a Dirac cone type energy dispersion was discovered in the organic conductor α-(BEDT-TTF)2I3 under high hydrostatic pressures. This is the first two-dimensional (2D) zero-gap stat...
Two-gap superconductivity in R2Fe3Si5 (R= Lu, Sc) and Sc5Ir4Si10
two-gap superconductivity Lu2Fe3Si5 Sc2Fe3Si5 Sc5Ir4Si10
2010/10/12
R2Fe3Si5 (R = Sc, Y, Lu) contains nonmagnetic iron and has a relatively high
superconducting transition temperature Tc among iron-containing superconductors.
An anomalous temperature dependence of s...
摘要 以GaCl3和Na3P为原料,利用苯热合成方法,在相同的温度、不同的反应时间下制备GaP纳米粒子。由分散在苯中的GaP纳米粒子的吸收光谱和透射电子显微镜测试结果可知,反应时间延长时GaP苯溶液的光吸收谱发生明显的蓝移。本文分析了出现这一现象的原因,并从实验上进行了验证。
Pressure of gas in gas gap during Lost Foam Process
Foundry engineering Lost foam Foamed polystyrene patterns
2011/3/11
In the study, a model and some fundamental relationships describing changes of gas pressure in the gas gap during manufacture of castings by the Lost Foam process were described. The mathematical desc...