| Bardeen Research Group
Department of Chemistry | University of California @ Riverside | 501 Big Springs Road | 127-131 CS-1
|Sunscreens & ROS|
|UC Energy Institute|
|University of California|
Our main activities are
Education: Since 2000, we've graduated 9 Ph.D., 3 M.S., more than 18 B.S. students, and continued in the training of 6 post-docs. Our labmates succeed in both academics and industry-read more about them here.
Outreach: In collaboration with Professor Greg Beran and a group of motivated UCR undergrads, we have developed a program that brings chemistry demonstrations to RUSD schools. We've tailored the program to meet the California State Science Requirements for States of Matter, The Water Cycle, and Electricity & Magnetism.
The infrared region of the solar spectrum passes right through photovoltaic materials that make up today’s solar cells. This is energy lost, no matter how good your solar cell. We have developed a hybrid molecule that combines inorganic semiconductor nanocrystals with organic emitters to "reshape the solar spectrum" so that it better matches the PV materials used today in solar cells. It works by first capturing two infrared photons that would normally pass right through a solar cell without being converted to electricity, then adds their energies together to make one higher energy photon. This upconverted photon is readily absorbed by photovoltaic cells, generating electricity from light that normally would be wasted.
The ability to utilize the infrared portion of the solar spectrum could boost solar photovoltaic efficiencies by 30 percent or more.
from UCR Today by Iqbal Pittalwala July 27, 2015
Photographs of near-IR and visible upconversion in cuvettes containing the novel molecule-nanocrystal hybrids.
For more information, check out our paper
Hybrid Molecule-Nanocrystal Photon Upconversion Across the Visible and Near-IR.
NanoLetters 2015, 15, 5552-5557
The photographs, taken with an iPhone 5, were not modified in any way.IMAGE CREDIT: ZHIYUAN HUANG, UC RIVERSIDE.