Status and Future of High-Power Light-Emitting Diodes for Solid-State Lighting

Krames, Michael R.; Shchekin, O.B.; Mueller‐Mach, Regina; Mueller, Gerd; Zhou, L.; Harbers, Gerard; Craford, M. G.

doi:10.1109/jdt.2007.895339

Cited by 1,866 publications

(1,083 citation statements)

References 57 publications

Supporting

Mentioning

1,067

Contrasting

Unclassified

Order By: Relevance

“…[156] However, in rigid top-emitting LEDs, ZnO:B, when grown by LPCVD, has the additional advantage of an intrinsic pyramidal surface texture with known light scattering properties, [137] improving light out coupling. [158] TCO/metal/TCO stacks and Ag NWs are on par in our FOM comparison. Although neither features simultaneously optimal R sh and absorptance, these transparent electrodes offer properties that are interesting for flexible devices.…”

Section: Transparent Electrodes As Front Electrodes In Oledsmentioning

confidence: 99%

Transparent Electrodes for Efficient Optoelectronics

Morales‐Masis

Wolf

Woods‐Robinson

et al. 2017

Adv Elect Materials

363

288

View full text Add to dashboard Cite

With the development of new generations of optoelectronic devices that combine high performance and novel functionalities (e.g., flexibility/bendability, adaptability, semi or full transparency), several classes of transparent electrodes have been developed in recent years. These range from optimized transparent conductive oxides (TCOs), which are historically the most commonly used transparent electrodes, to new electrodes made from nano‐ and 2D materials (e.g., metal nanowire networks and graphene), and to hybrid electrodes that integrate TCOs or dielectrics with nanowires, metal grids, or ultrathin metal films. Here, the most relevant transparent electrodes developed to date are introduced, their fundamental properties are described, and their materials are classified according to specific application requirements in high efficiency solar cells and flexible organic light‐emitting diodes (OLEDs). This information serves as a guideline for selecting and developing appropriate transparent electrodes according to intended application requirements and functionality.

show abstract

Section: Transparent Electrodes As Front Electrodes In Oledsmentioning

confidence: 99%

Transparent Electrodes for Efficient Optoelectronics

Morales‐Masis

Wolf

Woods‐Robinson

et al. 2017

Adv Elect Materials

363

288

View full text Add to dashboard Cite

show abstract

“…III-nitride semiconductors are normally used in blue and green light-emitting diodes (LEDs) [1], but their unique properties also make them interesting for photovoltaics. These properties include the ability to tune the bandgap of InGaN across nearly the entire solar spectrum (0.7eV-3.4eV) [2], high absorption coefficient (~10 5 cm -1 ) [3], and high radiation resistance [4].…”

Section: Introductionmentioning

confidence: 99%

III-nitride core–shell nanowire arrayed solar cells

Wierer

Li²,

Koleske³

et al. 2012

Nanotechnology

View full text Add to dashboard Cite

A solar cell based on a III-nitride hybrid nanowire-film architecture is demonstrated. It consists of a vertically-aligned array of InGaN/GaN multi-quantum well core-shell nanowires, electrically connected by a coalesced p-type InGaN canopy layer. This hybrid structure allows for standard planar device processing, solving an important challenge with nanowire device integration. It also enables various advantages such as higher indium composition InGaN layers via elastic strain relief, efficient carrier collection through thin layers, and enhanced light trapping. This proof-of-concept nanowire-based device presents a path forward for highefficiency III-nitride solar cells. Fabricated III-nitride nanowire solar cells exhibit a photoresponse out to 2.1eV and short circuit current density of ~1 mA/cm 2 (1 sun AM1.5G). 4 ACKNOWLEDGMENTS5

show abstract

“…There have been many reports describing the development of phosphors [7][8][9][10][11][12][13][14][15][16] for violet chips, which have an external quantum efficiency that is intrinsically higher than that of blue chips [17][18][19] . A pc-LED with a violet chip generates white light only from the luminescence of the phosphors.…”

mentioning

confidence: 99%