A detailed investigation of the effect of hole transport material (HTM) pore fi lling on the photovoltaic performance of solid-state dye-sensitized solar cells (ss-DSCs) and the specifi c mechanisms involved is reported. It is demonstrated that the effi ciency and photovoltaic characteristics of ss-DSCs improve with the pore fi lling fraction (PFF) of the HTM, 2,2’,7,7’-tetrakis-( N , N -dip -m...

The internal quantum effi ciency (IQE) of solid-state dye sensitized solar cells (ssDSCs) is measured using a hybrid optical modeling plus absorptance measurement approach which takes into account the parasitic absorption of the hole transport material (HTM). Across device thicknesses of 1 to 4 microns, ssDSCs sensitized with Z907 and TT1 dyes display relatively constant IQEs of approximately 8...

© 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinhei G. Y. Margulis Department of Applied Physics Stanford University Geballe Laboratory for Advanced Materials 476 Lomita Mall, Stanford, CA, 94305, USA M. G. Christoforo Department of Electrical Engineering Stanford University Geballe Laboratory for Advanced Materials 476 Lomita Mall, Stanford, CA, 94305, USA D. Lam Department of Physics Stanford Un...

Nowadays space applications are provided with a processing power absolutely overcoming the one available just a few years ago. Typical mission-critical space system applications include also the issue of solid-state recorder(s). Flash-memories are nonvolatile, shock-resistant and power-economic, but in turn have different drawbacks. A solid-state recorder for space applications should satisfy m...

Motivated by recent advances in wideband-gap (WBG) gallium nitride (GaN) semiconductor technology, there is considerable interest in developing efficient solidstate power amplifiers (SSPAs) as an alternative to the traveling-wave tube amplifier (TWTA) for space applications. This article documents the general architecture considerations pertinent to developing SSPA architectures that can enable...

We survey the latest advances in quadrupolar halogen (Cl, Br, and I) solidstate nuclear magnetic resonance (SSNMR). The reporting period is from August 2008 through to July 2014; prior work has been covered in a previous review from our group (Widdifield et al. [2]). The past 6 years have witnessed a continued growth in the areas of application of chlorine, bromine, and iodine SSNMR. Such areas...

Bose-Chaudhuri-Hocquenghem (BCH) codes have been widely employed in satellite communications, compact disc players, DVDs, disk drives, solidstate drives, two-dimensional bar codes and in cryptography more recently. However, there is only a little known about primitive BCH codes, let alone nonprimitive ones. In this paper, dimension of a special class of nonprimitive BCH codes of length n = q + ...

Polyamide 6 (PA6) nanocomposites with electric and thermal conductive properties were formulated via melt processing of PA6 diff erent inclusion reduced graphene oxide (RGO). These showed that the small percolation threshold perfect formation link form 0.5 wt % ~3.0 RGO, respectively. Examination crystallization confi rmed RGO enabled structure mostly through speeding up ofcrystal nucleus, reac...

Vahid Khakyzadeh was born in Hamedan, Iran. He received his B.S. degree (Pure Chemistry) and M.S. degree (Organic Chemistry) from Bu-Ali Sina University, Hamedan, Iran, at 2008, 2010 respectively under supervision of professor Mohammad Ali Zolfigol. He is currently working on his Ph. D. under the supervision of professor Mohammad Ali Zolfigol in organic chemistry. Among his recent awards, Vahid...