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Jeffrey Christians

Jeffrey Arnold Christians

Email: Jeffrey.A.Christians.1@nd.edu

Phone: 574-631-5581

Office: Radiation Lab Rm. 211

Education

B.S.E., Calvin College, 2010

Majors: Chemical Engineering, Chemistry

Biography

Kamat, P. V.; Christians, J. A.; Radich, J. G. “Quantum Dot and Nanowire Solar Cells. Hole Transfer as a Limiting Factor.” Langmuir 2014, submitted (Feature Article).

Kim, J.-P.; Christians, J. A.; Choi, H.; Krishnamurty, S; Kamat, P. V. “CdSeS Nanowires. Compositionally Controlled Band Gap and Charge Dynamics.” J. Phys. Chem. Lett., 2014, submitted.

Christians, J. A.; Leighton Jr., D. T.; Kamat, P. V. “Rate Limiting Interfacial Hole Transfer in Solid-State Solar Cells.” Energy Environ. Sci. 2014, Advance Article.

Christians, J. A.; Fung, R. C. M.; Kamat, P. V. “An Inorganic Hole Conductor for Organo-Lead Halide Perovskite Solar Cells. Improved Hole Conductivity with Copper Iodide.” J. Am. Chem. Soc. 2014, 136 (2), 758-764.

Christians, J. A.; Kamat, P. V. “Trap and Transfer. Two-Step Hole Injection Across the Sb2S3/CuSCN Interface in Solid State Solar Cells.” ACS Nano 2013, 7 (9), 7967-7974.

Opperwall, S. R.; Divakaran, A.; Porter, E. G.; Christians, J. A.; Denhartigh, A. J.; Benson, D. E. Wide “Dynamic Range Sensing with Single Quantum Dot Biosensors.” ACS Nano 2012, 6, 8078-86.

Summary of Activities/Interests

Jeff is a fourth year doctoral student in the Chemical and Biomolecular Engineering Department at Notre Dame. He is originally from Grand Rapids, Michigan where he received his bachelor degree in Chemical Engineering from Calvin College in 2010 and performed research on using individual CdSe quantum dots as wide dynamic range fluorescent biosensors. Jeff's work in the Kamat lab has focused on improving Sb2S3 extremely thin absorber (ETA) solar cells by understanding the hole transfer mechanism in these devices. Currently, Jeff is exploring organo-metal lead halide perovskites for use in photovoltaics, studying alternative hole conductor materials and improving the understanding of these devices.

News

Researchers Identify a Low-cost Alternative Material for Next-generation Solar Cells

January 24, 2014

With the continual increase in demand for global energy, scientists across the world are working to find a way to transition from fossil fuels to renewable energy sources that are more efficient and environmentally friendly. The sun delivers more energy to the Earth’s surface in one hour than the entire world uses in one year, and realizing the full potential of solar power will require finding effective, inexpensive ways to utilize this vast energy source. Researchers have identified a possible inorganic material for perovskite solar cells, which provides a lower-cost alternative to the organic polymers currently used in the cells.

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