Zobrazeno 1 - 10
of 54
pro vyhledávání: '"Wook Jun Nam"'
Autor:
Terumi Okano, Alvin D. Compaan, Michael A. Pickering, Dohyoung Kwon, Victor V. Plotnikov, Zachary Gray, Deodatta V Shenai-Khatkhate, Stephen J. Fonash, Wook Jun Nam, Shawn Waggoner, John M. Stayancho
Publikováno v:
ECS Transactions. 66:275-279
A thin layer of a wide bandgap material disposed between an electrode and an absorber material in a photo-detector or solar cell can play important transport and optical roles in enhancing device performance. When the energy band edges of the materia
Autor:
Liming Ji, Zachary Gray, Douglas Neidich, Nghia Nguyen, Stephen J. Fonash, Diego Fischer, Wook Jun Nam
Publikováno v:
IEEE Journal of Photovoltaics. 5:28-32
We fabricated nc-Si light trapping cells that produced photocurrents 30% higher than those of controls. Computer studies using experimentally determined, self-consistent TCO and nc-Si thicknesses showed this nanodome design is capable of producing $J
Autor:
Martin Foldyna, Stephen J. Fonash, Pere Roca i Cabarrocas, Mutaz Al-Ghzaiwat, Wook Jun Nam, Jean-Christophe Dornstetter
Publikováno v:
IEEE Journal of Photovoltaics
IEEE Journal of Photovoltaics, IEEE, 2017, 7 (4), pp.974-979. ⟨10.1109/JPHOTOV.2017.2703854⟩
IEEE Journal of Photovoltaics, IEEE, 2017, 7 (4), pp.974-979. ⟨10.1109/JPHOTOV.2017.2703854⟩
A top-surface, micron-scale, protrusion array following unique light management design criteria is presented and demonstrated. Modeling results for absorptance A ( λ ) and short-circuit current density J sc along with experimental results for extern
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e6290dc6a4daf97b3ec117e99e8be0e0
https://hal-polytechnique.archives-ouvertes.fr/hal-01640079
https://hal-polytechnique.archives-ouvertes.fr/hal-01640079
Publikováno v:
ECS Transactions. 64:3-8
A new fabrication approach for AMOSFETs (junctionless transistors) is demonstrated using a-Si:H and XeF2 as a sacrificial material and an etchant, respectively. The new approach, which provides advantages of our previous encapsulated and extruded Gro
Publikováno v:
The Journal of Physical Chemistry B. 110:20197-20201
The multilayer desorption behavior of 2,5-diidothiophene and the dendritic aggregation of photochemical reaction products during the desorption of 2,5-diiodothiophene multilayers have been studied. Like many other aromatic compounds, 2,5-diiodothioph
Publikováno v:
Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films. 19:1229-1233
Nano- and microchannels are fabricated using a novel deposited column/void network silicon film as a sacrificial material. This nanostructured silicon consists of nanometer-sized columns defined normal to the substrate in a void matrix, where the voi
Publikováno v:
Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films. 15:590-595
Effects of various cleaning and annealing methods on the removal of the residue and physical damage remaining on the exposed silicon surface after the oxide overetching by C4F8 magnetized inductively coupled plasmas were studied. X-ray photoelectron
Publikováno v:
2013 IEEE 39th Photovoltaic Specialists Conference (PVSC).
Lead selenide (PbSe) quantum dots (QDs) are investigated as the photovoltaic absorber material in a variety of designs based on the light and carrier collection management (LCCM) architecture (US Patent 8,294,025). This architecture uses a periodic a
Publikováno v:
2013 IEEE 39th Photovoltaic Specialists Conference (PVSC).
Design variations of our Light and Carrier Collection Management (LCCM) architecture were simulated for ultra-thin CIGS cells. Two back reflector materials (Au and Mo) were used. With a nominal CIGS thickness of 200nm, the Mo LCCM and Au LCCM cells p
Publikováno v:
2013 IEEE 39th Photovoltaic Specialists Conference (PVSC).
We present the profound performance enhancements experienced when an ultra-thin nanocrystalline silicon (nc-Si) film is utilized in our light and carrier collection management (LCCM) architecture (US Patent 8,294,025). We begin by establishing theore