Photovoltaics

The Fluorolog-QM fluorescence spectrometer with an integrating sphere option is an excellent choice for PLQY measurements in NIR. The K-Sphere is very convenient and easy to use, as it couples directly to the sample compartment optics and allows a use of external light sources, such as DPSS lasers, which can be attached to the front of the sample compartment. The sphere has holders for cuvettes, slides and powders that can be easily interchanged. The results demonstrate very good reproducibility and precision for NIR PLQY measurements spanning almost two orders of magnitude. Based on multiple measurements, the demonstrated PLQY standard deviations range from 1.3% for high QY value (77%) to 6.4% for the QY below 1%.

DPSS laser mounted to the front of the Fluorolog-QM sample compartment

The new Fluorolog-QM spectrofluorometers, due to their modularity and advanced software and a universal interface, are an ideal choice for studying multiple aspects of upconversion. This technical note illustrates the use of Fluorolog-QM-75-21 for spectral and time-resolved characterization of these materials.

New NIR DSS detectors in final QC at the HORIBA NJ Optical Spectroscopy Center in Piscataway, NJ.

This technical note serves as a guideline to selecting the best solid state detector with the Fluorolog-QM modular research spectrofluorometer for a given series of photoluminescence experiments.

Time-resolved photoluminescence (TRPL) spectroscopy is an important tool which can be used to characterize optical materials such as LEDs and photovoltaic (PV) materials.

With their ~20 % efficiency, hybrid perovskite solar cells are the new promising candidate for next generation photovoltaics. Thanks to the wide HORIBA Scientific portfolio, different techniques can be used to gain in depth knowledge on the optoelectronic properties and mechanisms of this class of materials. In this application note we decided to use spectroscopic ellipsometry, steady-state and time-resolved fluorescence and Glow Discharge Optical Emission Spectroscopy to investigate the properties of CH3NH3PbI3 thin films deposited on a spin-coated PEDOT:PSS. The impact of the exposure to air was addressed.

Hybrid organic-inorganic perovskite materials have emerged over the past five years as promising absorber layers for new high-efficiency and low-cost solar cells that combine the advantages of organic and inorganic semiconductors. The increasing interest in this technology is pushing research laboratories to find the optimal techniques for the accurate characterization of opto-electronic properties of these materials.

Spectroscopic Ellipsometry is an efficient and non-destructive method for extracting optical constants of materials in the UV-VIS-NIR wavelength ranges. The optical constants (n,k) of a material are among the most important sets of optical data and are specific to the material being studied. During this webinar, you will learn how to define a strategy to perform quantitative Spectroscopic Ellipsometry on CIGS semiconducting thin films. CIGS is among the most efficient absorbers for photovoltaic solar conversion. Deployed as thin or ultra thin films, CIGS optical characterization is as important in its preparation stage as in the modeling of cell stacks. However the determination of CIGS optical constants is a very complex challenge, particularly for SE when it is used as a unique and direct experimental method.

Photoluminescence spectroscopy (PL) is a powerful optical method used for characterizing materials. PL can be used to find impurities and defects in silicon and group III-V element semiconductors, and to determine semiconductor band-gaps.

Temperature-dependent photoluminescence (PL) spectroscopy is a powerful optical method for characterizing materials. PL can be used to identify defects and impurities in Si and III-V semiconductors, as well as determine semiconductor bandgaps. At room temperature, PL emission is usually broad—up to 100 nm in width.

As a result of rapid development in semiconductor manufacturing, many types of optoelectronic devices such as laser diodes, LEDs, and high-electron-mobility transistors (HEMTs) are now fabricated by epitaxial-growth methods.

Gallium Nitride (GaN) is one of a generation of promising light-emitting materials. Its direct energy band gap of ~3.4 eV at room temperature make it particularly suitable for emission in the blue, and near UV spectral ranges. The material often exhibits high temperature stability and low electrical leakage, and hence GaN is generally a good candidate for fabricating high-temperature and high-power devices.

Photoluminescence is the optical emission obtained by photon excitation (usually a laser) and is commonly observed with III-V semiconductor materials. This type of analysis allows non-destructive characterization of semiconductors (material composition, qualitative investigations, etc.

III-V semiconductors are important to the fabrication of active photonic devices such as light sources and detectors. Successful fabrication of such devices relies on the high quality of the underlying materials and precise deposition of intended geometries on a wafer substrate.

Monolithic integration of optical components on CMOS platforms is ongoing in the optical communications industry. CMOS offers a mature and robust platform, and therefore is logical for building optical-interconnect modules.

GaN and related alloys are important materials used to build short-wavelength light sources (lasers and LEDs). Room- and low-temperature photoluminescence (PL) are used to characterize these materials as well as device performance.

Hybrid perovskite photovoltaics (PV) show promise because of their good efficiencies, which can be around 20%. Along with their PV characteristics, perovskite materials exhibit a high degree of radiative recombination.

Internal Quantum Efficiency (IQE) and External Quantum Efficiency (EQE) measurements are indicators of the effectiveness of a photosensitive device such as those used in telecommunications and solar cells. EQE is the ratio of the charges generated to the total amount of photons incident on the surface; a larger EQE indicates a more efficient device.

The phenomenon of upconversion is an optical process that takes in lower energy (longer wavelength) photons and emits higher energy (shorter wavelength) photons.

Glasses are essential materials with a multitude of uses and many forms. In the area of optoelectronics there is an interest to modify the glass composition to favor the incorporation of lanthanide elements.

Request for Information

Do you have any questions or requests? Use this form to contact our specialists.

First name

Last name *

Company or Institution *

Postal code *

City

Country *

State

Email address *

Phone

HORIBA Department

Your message *

I have read and agree to the HORIBA privacy policy

Related Products

Cathodoluminescence - CLUE Series

more Cathodoluminescence - CLUE Series

Cathodoluminescence Solutions for Electron Microscopy

Sampling Sheet Holder Y048

more Sampling Sheet Holder Y048

ABX Pentra 400 Reagents

more ABX Pentra 400 Reagents

ABX Pentra ML

more ABX Pentra ML

Centralized Validation

Pentra C400

more Pentra C400

Clinical Chemistry Analyzer

Pentra C200

more Pentra C200

Clinical Chemistry Analyzer

3552-10D Conductivity Cell (Submersible Type)

more 3552-10D Conductivity Cell (Submersible Type)

Standard solution (Conductivity 12.9mS/cm) Y071H

more Standard solution (Conductivity 12.9mS/cm) Y071H

PGM200

Vacuum Spectrometer - Plane Grating Monographs

TGM300

Vacuum Spectrometer - Monochromator with 300 mm focal length to cover the 10-300 nm spectral range

514-05

0.5% NaCl Standard Solution

ABX Pentra DF 120

more ABX Pentra DF 120

Productivity and reliability

Mixer/Mill 5100*

more Mixer/Mill 5100*

Small high-energy ball mill that accommodates sample sizes ranging from 0.2 - 1.5 grams.

ABX Pentra DX 120

more ABX Pentra DX 120

In the heart of hematopoiesis

ABX Pentra DF 120 SPS Evolution

more ABX Pentra DF 120 SPS Evolution

Productivity and reliability

100 mg/L Fluoride Ion Standard Solution

more 100 mg/L Fluoride Ion Standard Solution

Standard solution (Nitrate Ion 300ppm) Y042

more Standard solution (Nitrate Ion 300ppm) Y042

SU-503ED/502EA

more SU-503ED/502EA

Setting Units

Compact flash memory card

more Compact flash memory card

Display Unit DU Series

more Display Unit DU Series

Display Unit

Dedicated power sources PE Series

more Dedicated power sources PE Series

Dedicated power sources

Analog (alarm) output cable

more Analog (alarm) output cable

Control Unit PE-D20

more Control Unit PE-D20

Control Unit

Monitor Unit PE-D10

more Monitor Unit PE-D10

Monitor Unit

Electrode stand for F-50/DS-50

more Electrode stand for F-50/DS-50

DP-50S Electrode stand

more DP-50S Electrode stand

Arm, for electrode stand

more Arm, for electrode stand

Output cord

more Output cord

MESA-50

X-Ray Fluorescence Analyzer