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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...