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Lee J Richter

Lee Richter's research interests lie in the application of optical diagnostics to the study of time-dependent processes occurring at interfaces. He has participated in a series of collaborative research studies that utilized state-resolved gas-phase diagnostics (both laser-induced fluorescence and resonance-enhanced multiphoton ionization) to characterized the energy disposal in the gas phase products arising from surface photochemical events, both photodissociation and photodesorption. These studies employed UHV techniques to prepare well-characterized initial surfaces, and have utilized both ns and fs laser sources to drive the photochemistry. He is currently active in the area of optical characterization of thin films and interfaces, specifically in the development of second-order nonlinear-optical techniques (second harmonic generation, SHG, and sum frequency generation, SFG) for the study of both carrier dynamics at buried interfaces (via electronically resonant SHG) and in situ molecular dynamics (via vibrationally resonant SFG).


Chemically Orthogonal Hole Transport Layer for Efficient Colloidal Quantum Dot Solar Cells

Margherita Biondi, Min-Jae Choi, Olivier Ouellette, Se-Woong Baek, Petar Todorovi?, Bin Sun, Peicheng Li, Ahmad R. Kirmani, Laxmi Chiluka, Lee J. Richter, Sjoerd Hoogland, Zheng-Hong Lu, F. Pelayo Garc?a de Arquer, Edward H. Sargent, Mingyang Wei
Colloidal quantum dots (CQDs) are of interest in light of their solution-processing and bandgap tuning. Advances in the performance of CQD optoelectronic

Sub-picosecond charge-transfer at near-zero driving force in polymer:non-fullerene acceptor blends and bilayers

Yufei Zhong, Martina Causa, Gareth J. Moore, Philipp Krauspe, Bo Xiao, Jonas Kublitski, Rishi Shivhare, Johannes Benduhn, Eyal BarOr, Subhrangsu Mukherjee, Kaila Yallum, Julien R?hault, Stefan C. Mannsfeld, Dieter Neher, Lee J. Richter, Dean M. DeLongchamp, Frank Ortmann, Koen Vandewal, Erjun Zhou, Banerji Natalie, Florian Gunther
Organic photovoltaics based on non-fullerene acceptors (NFAs) show record efficiency of 16 to 17% and increased photovoltage owing to the low driving force for
Created October 9, 2019