Enhancement of light extraction from light emitting diodes

AI Zhmakin - Physics Reports, 2011 - Elsevier
The large amount of light emitted from a light emitting diode (LED) being trapped inside the
semiconductor structure is the consequence of the large value of the refractive index. The …

Formation of high aspect ratio GaAs nanostructures with metal-assisted chemical etching

M DeJarld, JC Shin, W Chern, D Chanda… - Nano …, 2011 - ACS Publications
Periodic high aspect ratio GaAs nanopillars with widths in the range of 500–1000 nm are
produced by metal-assisted chemical etching (MacEtch) using n-type (100) GaAs substrates …

Full-color InGaN/GaN dot-in-a-wire light emitting diodes on silicon

HPT Nguyen, K Cui, S Zhang, S Fathololoumi… - …, 2011 - iopscience.iop.org
We report on the achievement of a new class of nanowire light emitting diodes (LEDs),
incorporating InGaN/GaN dot-in-a-wire nanoscale heterostructures grown directly on Si …

High efficiency green, yellow, and amber emission from InGaN/GaN dot-in-a-wire heterostructures on Si (111)

YL Chang, JL Wang, F Li, Z Mi - Applied Physics Letters, 2010 - pubs.aip.org
The authors report on the achievement of nearly defect-free, vertically aligned InGaN/GaN
dot-in-a-wire nanoscale heterostructures grown directly on Si (111) substrates by molecular …

Enhanced conversion efficiency of a crystalline silicon solar cell with frustum nanorod arrays

MA Tsai, PC Tseng, HC Chen, HC Kuo, P Yu - Optics Express, 2011 - opg.optica.org
Enhanced photoelectric conversion is demonstrated in a crystalline silicon (c-Si) solar cell
with frustum nanorod arrays (FNAs), fabricated using colloidal lithography and reactive-ion …

Sidewall passivation for InGaN/GaN nanopillar light emitting diodes

WH Choi, G You, M Abraham, SY Yu, J Liu… - Journal of Applied …, 2014 - pubs.aip.org
We studied the effect of sidewall passivation on InGaN/GaN multiquantum well-based
nanopillar light emitting diode (LED) performance. In this research, the effects of varying etch …

Color-conversion efficiency enhancement of quantum dots via selective area nano-rods light-emitting diodes

CY Liu, TP Chen, TS Kao, JK Huang, HC Kuo… - Optics …, 2016 - opg.optica.org
A large enhancement of color-conversion efficiency of colloidal quantum dots in light-
emitting diodes (LEDs) with novel structures of nanorods embedded in microholes has been …

High efficiency GaN-based light-emitting diodes with embedded air voids/SiO2 nanomasks

CH Chiu, CC Lin, HV Han, CY Liu, YH Chen… - …, 2012 - iopscience.iop.org
In this paper, the high performance GaN-based light-emitting diodes (LEDs) with embedded
microscale air voids and an SiO 2 nanomask by metal–organic chemical vapor deposition …

Flexible-textured polydimethylsiloxane antireflection structure for enhancing omnidirectional photovoltaic performance of Cu(In,Ga)Se2 solar cells

SY Kuo, MY Hsieh, HV Han, FI Lai, TY Chuang, P Yu… - Optics express, 2014 - opg.optica.org
Because of the Sun's movement across the sky, broadband and omnidirectional light
harvesting is a major development in photovoltaic technology. This study reports the …

Antireflection layer of ZnO nanorod embedded in PDMS film for enhancing omnidirectional photovoltaic performance of CIGS photovoltaic cell

FI Lai, MY Hsieh, JF Yang, YC Hsu… - International Journal of …, 2021 - Wiley Online Library
In this study, a flexible polydimethylsiloxane (PDMS) ARL with embedded ZnO‐NRs was
fabricated on the surfaces of Cu (In, Ga) Se2 (CIGS) solar cells using the chemical solution …