Nanowire array photovoltaics: Radial disorder versus design for optimal efficiency

نویسندگان
چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Optimal design of aperiodic, vertical silicon nanowire structures for photovoltaics.

We design a partially aperiodic, vertically-aligned silicon nanowire array that maximizes photovoltaic absorption. The optimal structure is obtained using a random walk algorithm with transfer matrix method based electromagnetic forward solver. The optimal, aperiodic structure exhibits a 2.35 times enhancement in ultimate efficiency compared to its periodic counterpart. The spectral behavior mi...

متن کامل

Semiconductor nanowire array: potential substrates for photocatalysis and photovoltaics

A novel vapor–liquid–solid epitaxy (VLSE) process has been developed to synthesize high-density semiconductor nanowire arrays. The nanowires generally are single crystalline and have diameters of 10–200nm and aspect ratios of 10–100. The areal density of the array can readily approach 10 cm . Results based on Si and ZnO nanowire systems are reported here. Because of their single crystallinity a...

متن کامل

Photonic design principles for ultrahigh-efficiency photovoltaics.

• For decades, solar-­‐cell efficiencies have remained below the thermodynamic limits. • Here, we show several new approaches for light management inside solar cells that may overcome some of the thermodynamic losses and pave the way for ultrahigh efficiency photovoltaics. Energy loss due to thermaliza,on or lack of absorp,on Entropy loss due to lack of angle restric,on Entropy loss to increase...

متن کامل

Design of photovoltaics for modules with 50% efficiency

A wide variety of photovoltaic cell technologies have shown dramatic performance improvements over the past decade, yet the prospect of a practical module capable of 50% efficiency remains remote. Experimentally achieved singlecell devices have achieved a record efficiency of 28.8% [1], which is close to the theoretical limit of 33.8% for such devices [2]. However, the singlecell limit is far b...

متن کامل

Supporting Information for “Ultra-dense, deep sub-wavelength nanowire array photovoltaics as engineered optical thin films”

Ion implantation The silicon-on-insulator (SOI) substrates (Soitec USA Inc., Peabody, MA) were implanted with dopant ions (CORE Systems, Sunnyvale, CA) through photoresist masks. Heavily-doped p-type (dose of 3.8×10 cm B at 2.5 keV) and n-type (dose of 3.2×10 cm P at 6.5 keV) contact regions were used to promote the formation of ohmic contacts, while the device regions received a lowor high-dos...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Applied Physics Letters

سال: 2012

ISSN: 0003-6951,1077-3118

DOI: 10.1063/1.4761957