Sullivan, C.M.; Kuszynski, J.E.; Kovalev, A.; Shirato, N.; Rose, V.; Wieghold, S.; Siegrist, T.; Schaller, R.D.; Strouse, G.F.; Nienhaus, L., Cooling Mixed A-Site Halide Perovskites: Impact of Temperature on Optical and Structural Properties Chem. Mater.2024 36, 9874-9881. Link
Sullivan, C.M. and Nienhaus, L., Exploring Sensitized Photon Upconversion–From Past to Present CHIMIA2024 78, 518-524. Link
Sullivan, C.M. and Nienhaus, L., Efficient Singlet Fission at the Border of Order and Disorder Matter2024 7, 2740-2742. Link
Moller, G.*; Sullivan, C.M.*; Cantrell, A.P.; Mardani, M.; Bieber, A.S.; Siegrist, T.; Nienhaus, L., Upconversion at Solid/Liquid Interfaces Using Perovskite Single Crystal Triplet Sensitizers Chem. Mater.2024 36, 1941–1946. Link
Wieghold, S.; Sullivan, C.M.; Nienhaus, L., Turning Up the Heat: Ultrafast Hot Carrier Extraction in FAPbBr3 ACS Cent. Sci.2024 10, 10-12. Link
Sullivan, C.M.; Nienhaus, L., Turning on TTA: Tuning the Energy Landscape by Intermolecular Coupling Chem. Mater.2024 36, 417–424. Link
Weiss, R.; Sullivan, C.M.; Nienhaus, L., Sizing Up Metal Halide Perovskite Photocatalysts: From Nano to Bulk Advanced Optical Materials2024 12, 2300626. Link
Bieber, A.S.; Sullivan, C.M.; Shulenberger, K.E.; Moller, G.; Mardani, M.; Wieghold, S.; Siegrist, T.; Nienhaus, L., Perovskite-Sensitized Upconversion under Operando Conditions J. Phys. Chem. C2023 127, 4773–4783. Link
Bindra, J.K.; Shrestha, P.R.; Engmann, S.; Cruz, C.; Nienhaus, L.; Bittle, E.G.; Campbell, J.P., Resolving Complex Photoconductivity of Perovskite and Organic Semiconductor Films Using Phase-Sensitive Microwave Interferometry J. Phys. Chem. C2023, 127, 4203-4209. Link
Wieghold, S.; Nienhaus, L., Viewing Optical Processes at the Nanoscale: Combining Scanning Tunneling Microscopy and Optical Spectroscopy J. Phys. Chem. C2023, 127, 3913–3920. Link
Sullivan, C.M.; Nienhaus, L., Generating Spin-Triplet States at the Bulk Perovskite/Organic Interface for Photon Upconversion Nanoscale2023, 15, 998-1013. Link
VanOrman, Z.A.; Weiss, R.; Bieber, A.S.; Chen, B.; Nienhaus, L., Mechanistic Insight into CdSe Nanoplatelet-Sensitized Upconversion: Size and Stacking Induced Effects Chem. Commun.2023, 59, 322-325. Link
Weiss, R.; VanOrman, Z.A.; Sullivan, C.M.; Nienhaus, L., A Sensitizer of Purpose: Generating Triplet Excitons with Semiconductor Nanocrystals ACS Mater. Au2022 2, 641–654. Link
Nienhaus, L., Diversity in STEM: Expanding the Cracks in the Glass Ceiling Matter2022, 5, 1977-1979. Link
Wieghold, S.; Cope, E.M.; Moller, G.; Shirato, N.; Guzelturk, B.; Rose, V.; Nienhaus, L., Stressing Halide Perovskites with Light and Electric Fields ACS Energy Lett.2022, 7, 2211-2218. Link
Drozdick, H.K.; Weiss, R.; Sullivan, C.M.; Wieghold, S.; Nienhaus, L., Widespread Opportunities for Materials Engineering of Nanocrystals: Synthetically Tailorable Effects and Methodologies Matter2022 5, 1645-1669. Link
Alves, J.; Feng, J.; Nienhaus, L.; Schmidt, T.W., Challenges, progress and prospects in solid state triplet fusion upconversion J. Mater. Chem C2022, 10, 7783-7798. Link
VanOrman, Z.A.; Weiss, R.; Medina, M.; Nienhaus, L., Scratching the Surface: Passivating Perovskite Nanocrystals for Future Device Integration J. Phys. Chem. Lett.2022 13, 982-990. Link
Conti, C.R., Bieber, A.S.; VanOrman, Z.A.; Moller, G.; Wieghold, S.; Schaller, R.D.; Strouse, G.F.; Nienhaus, L., Ultrafast Triplet Generation at the Lead Halide Perovskite/Rubrene Interface ACS Energy Lett.2022 7, 617–623. Link
Hartono, N.T.P.; Tremblay, M.; Wieghold, S.; Dou, B.; Thapa, J., Tiihonen, A.; Bulovic, V.; Nienhaus, L.; Marder, S.R.; Buonassisi, T.; Sun, S., Tailoring capping-layer composition for improved stability of mixed-halide perovskites J. Mater. Chem. A2022 10, 2957-2965. Link
Bieber, A.S.; VanOrman, Z.A.; Drozdick, H.K.; Weiss, R.; Wieghold, S.; Nienhaus, L., Mixed Halide Bulk Perovskite Triplet Sensitizers: Interplay between Band Alignment, Mid-gap Traps and Phonons J. Chem. Phys.2021 155, 234706 Link
Nienhaus, L.; Schmidt, T.W., Comment on “Tremendously enhanced photocurrent enabled by triplet–triplet annihilation up-conversion for high-performance perovskite solar cells” by W. Sheng, J. Yang, X. Li, G. Liu, Z. Lin, J. Long, S. Xiao, L. Tan and Y. Chen, Energy Environ. Sci., 2021, 14, 3532 Energy Environ. Sci.2021 14, 6050-6052. Link
VanOrman, Z.A.; Nienhaus, L., Bulk Metal Halide Perovskites as Triplet Sensitizers: Taking Charge of Upconversion ACS Energy Letters2021 6, 3686-3694.Link
Nienhaus, L.; Wieghold, S., Relaxation on the Nanoscale: Probing Transient Dynamics by trSMA-STM Matter2021 4, 2680-2682.Link
VanOrman, Z.A.; Nienhaus, L., Feeling Blue No More: How TIPS-Napthalene Enables Efficient Visible-to-UV Upconversion Matter2021 4, 2625-2626.Link
Wieghold, S.; Luo, Y.; Bieber, A.S.; Lackner, J.; Shirato, N.; VanOrman, Z.A.; Rosenmann, D.; Nienhaus, K.; Lai, B.; Nienhaus, G.U.; Rose, V.; Nienhaus, L. Impact of Transition Metal Doping on the Structural and Optical Properties of Halide Perovskites Chem. Mater.2021 33, 6099-6107. Link
VanOrman, Z.A.; Lackner, J.; Wieghold, S.; Nienhaus, K.; Nienhaus, G. U.; Nienhaus, L. Efficiency of bulk perovskite-sensitized upconversion: Illuminating matters Appl. Phys. Lett.2021 118, 203903 Link
VanOrman, Z.A.; Nienhaus, L., Recent Advancements in Halide Perovskite Nanomaterials and their Optoelectronic Applications InfoMat2021 Early View Link
Ehrler, B.; Yanai, N.; Nienhaus, L., Up-and Down-Conversion in Molecules and Materials J. Chem. Phys.2021 154, 070401. Link
VanOrman, Z.A.; Drozdick, H.K.; Wieghold, S.; Nienhaus, L., Bulk Halide Perovskites as Triplet Sensitizers: Progress and Prospects in Photon Upconversion J. Mater. Chem. C2021 9, 2685-2694. Link
Wieghold, S.; Nienhaus, L., Nanoscale Properties of Lead Halide Perovskites by Scanning Tunneling Microscopy EcoMat2021 3:e12081. Link
VanOrman, Z.A.; Conti III, C. R.; Strouse, G. F.; Nienhaus, L., Red-to-Blue Photon Upconversion Enabled by One-Dimensional CdTe Nanorods Chem. Mater.2021 33, 452-458. Link
Wieghold, S.; VanOrman, Z.A.; Nienhaus, L., Halide Perovskites: A Progress Report on Photon Interconversion Adv. Optical Mater.2020 2001470. Link
Wieghold, S.; Shirato, N.; Rose, V.; Nienhaus, L., Investigating the Effect of Electric Fields on Lead Halide Perovskites by Scanning Tunneling Microscopy J. Appl. Phys.2020 128, 125303. Link
Bieber, A. S.; VanOrman, Z.A.; Wieghold, S.; Nienhaus, L., Perovskite-Sensitized Upconversion Bingo: Stoichiometry, Composition, Solvent, or Temperature? J. Chem. Phys.2020 153, 084703. Link
Montana, D. M.; Nasilowski, M.; Hess, W. R.; Saif, M.; Carr, J. A.; Nienhaus, L.; Bawendi, M. G., Monodisperse and Water-Soluble Quantum Dots for SWIR Imaging via Carboxylic Acid Copolymer Ligands ACS Appl. Mater. Interfaces2020 12, 35845-35855. Link
Wieghold, S.; Bieber, A. S.; VanOrman, Z.A.; Rodriguez, A.; Nienhaus, L., Is Disorder Beneficial in Perovskite-Sensitized Solid-State Upconversion? The Role of DBP Doping in Rubrene J. Phys. Chem. C. 2020 124, 18132-18140. Link
Wieghold, S.; Bieber, A. S.; Mardani, M.; Siegrist, T.; Nienhaus, L., Understanding the Effect of Light and Temperature on the Optical Properties and Stability of Mixed-ion Halide Perovskites J. Mater. Chem. C 2020 , 8, 9714-9723. Link
Wieghold, S.; Bieber, A. S.; Lackner, J.; Nienhaus, K.; Nienhaus, G. U.; Nienhaus, L. One-Step Fabrication of Perovskite-Based Upconversion Devices ChemPhotoChem2020 4, 704-712. Link
VanOrman, Z.A.; Nienhaus, L. Kitchen Spectroscopy: Shining a (UV) Light on Everyday Objects Matter 2020 2, 1348-1351. Link
Wieghold, S.; Nienhaus, L., Engineering 3D Perovskites for Photon Interconversion Applications PLOS ONE 2020 15, e0232196. Link
Wieghold, S.; Nienhaus, L., Probing Semiconductor Properties with Optical Scanning Tunneling Microscopy Joule 2020 4, 524-538. Link
Wieghold, S.; Nienhaus, L., Precharging Photon Upconversion: Interfacial Interactions in Solution-Processed Perovskite Upconversion Devices J. Phys. Chem. Lett. 2020 11, 601-607. Link
VanOrman, Z.A.; Bieber, A.S.; Wieghold, S; Nienhaus, L., A Perspective on Triplet Fusion Upconversion: Triplet Sensitizers Beyond Quantum Dots MRS Commun. 2019 9, 924–935. Link
Wieghold, S.; Bieber, A.S.; VanOrman, Z.A., Nienhaus, L., Influence of Triplet Diffusion on Lead Halide Perovskite-Sensitized Solid-State Upconversion J. Phys. Chem. Lett.2019 10, 3806-3811. Link
Wieghold, S.; Bieber, A.S.; VanOrman, Z.A.; Daley, L.; Leger, M.; Correa-Baena, J.-P.; Nienhaus, L., Triplet Sensitization by Lead Halide Perovskite Thin Films for Efficient Solid-State Photon Upconversion at Subsolar Fluxes Matter 2019 1, 705–719.Link
Wieghold, S.; Tresback, J.; Correa-Baena, J.-P.; Hartono, N.T.P.; Sun, S.; Lui, Z.; Layurova, M.; VanOrman, Z.A.; Bieber, A.S.; Thapa, J.; Lai, B.; Cai, Z.; Nienhaus, L.; Buonassisi, T., Halide Heterogeneity Affects Local Charge Carrier Dynamics in Mixed-Ion Lead Perovskite Thin Films Chem. Mater.2019, 31, 3712-3721. Link
prior work
Bi, H.; Huo, C.; Song, X.; Li, Z.; Tang, H.; Griesse-Nascimento, S.; Huang, K.; Cheng, J.; Nienhaus, L.; Bawendi, M.; Lin, H. G.; Wang, Y.; Saikin, S. K., Room-Temperature Phosphorescence and Low-Energy Induced Direct Triplet Excitation of Alq3 Engineered Crystals J. Phys. Chem. Lett.2020 11, 9364-9370. Link
Einzinger, M.; Wu, T.; Kompalla, J.F.; Smith, H.L.; Perkinson, C.F.; Nienhaus, L.; Wieghold, S.; Congreve, D.N.; Kahn, A; Bawendi, M.G.; Baldo, M.A., Sensitization of Silicon by Singlet Exciton Fission in Tetracene Nature2019 571, 90–94. Link
Geva, N.; Nienhaus, L; Wu, M.; Bulovic, V.; Baldo, M.A.; Van Voorhis, T.; Bawendi, M.G., A Heterogeneous Kinetics Model for Triplet Exciton Transfer in Solid-State Upconversion J. Phys. Chem. Lett.2019 10, 3147-3152. Link
Hill, R.B.M.; Turren-Cruz, S.H.;Pulvirenti, F.; Tress, W.; Wieghold, S.; Sun, S.; Nienhaus, L.; Bawendi, M.G.; Buonassisi, T.; Barlow, S.; Hagfeldt, A.; Marder, S.R.; Correa-Baena, J.-P., Phosphonic Acid Modification of the Electron Selective Contact: Interfacial Effects in Perovskite Solar Cells ACS Appl. Energy Mater.2019, 2, 2402-2408. Link
Nienhaus, L.; Correa-Baena, J.P.; Wieghold, S.; Einzinger, M.; Lin, T.-A.; Shulenberger, K.E.; Klein, N.D.; Wu, M.; Bulovic, V.; Buonassisi, T.; Baldo, M.A.; Bawendi, M.G., Triplet-Sensitization by Lead Halide Perovskite Thin Films for Near-Infrared-to-Visible Upconversion ACS Energy Lett.2019, 4, 888-895. Link
Wieghold, S.; Correa-Baena, J.P.; Nienhaus, L.; Sun, S.; Tresbak, J.; Liu, Z.; Shin, S.S.; Bawendi, M.G.; Buonassisi, T., Interplay of Grain Size, Crystal Orientation, and Performance in Mixedion Lead Halide Perovskite Films. 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion2018, 2553-2556. Link
Nienhaus, L., Geva, N. Correa-Baena, J.P., Wu, M., Wieghold, S., Bulovic, V., Van Voorhis, T., Baldo, M.A., Buonassisi, T., Bawendi, M.G., Solid-state infrared-to-visible upconversion for sub-bandgap sensitization of photovoltaics, 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion2018, 3698-3702. Link
Wieghold, S.; Correa-Baena, J.P.; Nienhaus, L.; Sun, S.; Shulenberger, K.E.; Liu, Z.; Tresbak, J.; Shin, S.S.; Bawendi, M.G.; Buonassisi, T., Precursor Concentration Affects Grain Size, Crystal Orientation, and Local Performance in Mixed-Ion Lead Perovskite Solar Cells. Appl. Energy Mat.2018 1, 6801-6808. Link
Geva, N.; Shepherd, J.J.; Nienhaus, L.; Bawendi, M.G.; Van Voorhis, T., Morphology of Passivating Organic Ligands around a Nanocrystal. J. Phys. Chem. C2018 122, 26267-26274. Link
Correa-Baena, J.-P.; Nienhaus, L.; Shin, S.S.; Wieghold, S.; Kurchin, R.C.; Hartono, T.; Bawendi, M.G.; Buonassisi, T., A-Site Cation in Inorganic A3Sb2I9 Perovskite Influences Structural Dimensionality, Exciton Binding Energy, and Solar Cell Performance. Chem. Mater.2018 30, 3734-3742. Link
Nienhaus, L.*; Wu, M.*; Bulovic, V.; Baldo, M.A.; Bawendi, M.G., Using lead chalcogenide nanocrystals as spin mixers: a perspective on near-infrared-to-visible upconversion Dalton Trans.2018, 47, 8509-8516. Link
Turren-Cruz, S.H.; Saliba, M.; Mayer, M.T.; Santiesteban, H.J.; Mathew, X.; Nienhaus, L.; Bawendi, M.G.; Gratzel, M.; Abate, A.; Hagfeldt, A.; Correa-Baena, J.-P., Enhanced Charge Carrier Mobility and Lifetime Suppress Hysteresis and Improve Efficiency in Planar Perovskite Solar Cells. Energy Environ. Sci.2018, 11, 78-86. Link
Nienhaus, L.; Wu, M.; Geva, N.; Shepherd, J.J.; Wilson, M.W.B.; Bulovic, V.; Van Voorhis, T.; Baldo, M.A.; Bawendi, M.G., Speed Limit for Triplet Exciton Transfer in Solid-State PbS Nanocrystal-Sensitized Photon Upconversion. ACS Nano2017, 11, 7848-7857. Link
Wieghold, S.*; Nienhaus, L.*; Knoller, F.; Schweinberger, F.F.; Shepherd, J.J.; Lyding, J.W.; Heiz, U.; Gruebele, M.; Esch, F., Plasmonic support-mediated activation of 1 nm platinum clusters for catalysis. Phys. Chem. Chem. Phys.2017, 19, 30570. Link
Polizzotti, J.A.; Faghaninia, A.; Poindexter, J.R.; Nienhaus, L.; Steinmann, V.; Hoye, R.L.Z.; Felten, A.; Deyin, A.; Mangan, N.M.; Correa-Baena, J.P.; Shin, S.S.; Jaffer, S.; Bawendi, M.G.; Lo, C.; Buonassisi, T., Improving the Carrier Lifetime of Tin Sulfide via Prediction and Mitigation of Harmful Point Defects. J. Phys. Chem. Lett.2017, 8, 3661-3667. Link
Poindexter J.R.; Hoye, R.L.Z.; Nienhaus, L.; Kurchin, R.C.; Morishige, A.E.; Looney, E.E.; Osherov, A.; Lai, B.; Bulovic, V.; Stevanovic, V.; Bawendi, M.G.; Buonassisi, T., High Tolerance to Iron Contamination in Lead Halide Perovskite Solar Cells. ASC Nano2017, 11, 7101-7109. Link
Wieghold, S.; Nienhaus, L.; Siebel, A.; Krause, M.; Wand, P.; Schweinberger, F.; Gruebele, M.; Heiz, U.; Esch, F., Au(111)-supported Platinum Nanoparticles: Ripening and Activity. MRS Advances2017, 1-6. Link
Nasilowski, M.; Nienhaus, L.; Bertram, S.N.; Bawendi, M.G., Colloidal Atomic Layer Deposition Growth of PbS/CdS Core/Shell Quantum Dots. Chem. Commun.2017, 53, 869-872. Link
Koepke, J.C.*; Wood, J.D.*; Chen, Y.; Schmucker, S.; Liu, X.; Chang, N.;Nienhaus, L.; Do, J.W.; Carrion, E. A.; Hewaparakrama, J.; Rangarajan, A.; Datye, I.; Mehta, R.; Haasch, R.T.; Gruebele, M.; Girolami, G.; Pop, E.; Lyding, J.W., Role of Pressure in the CVD Growth of Hexagonal Boron Nitride Thin Films from Ammonia-Borane. Chem. Mater.2016, 28, 4169-4179. Link
Nienhaus, L.*; Goings, J.J.*; Nguyen, D.; Wieghold, S.; Lyding, J.W.; Li, X.; Gruebele, M., Imaging Excited Orbitals of Quantum Dots: Experiment and Electronic Structure Theory. J. Am. Chem. Soc.2015, 137, 14743-14750. Link
Nienhaus, L.; Wieghold, S.; Nguyen, D.; Lyding, J.W.; Scott, G.E.; Gruebele, M., Optoelectronic Switching of a Carbon Nanotube Chiral Junction Imaged with Nanometer Spatial Resolution. ACS Nano2015, 9, 10563-10570. Link
Nguyen, D; Nienhaus, L.; Haasch, R.T.; Lyding, J.W.; Gruebele, M., Sub-Nanometer Glass Surface Dynamics Induced by Illumination. J. Chem. Phys.2015, 142, 234505. Link
Nienhaus, L.; Dustin, D.E.; Xue, Z.; Moore, J.S.; Gruebele, M., Intramolecular Energy Transfer in a Synthetic Dendron-Based Light Harvesting System. J. Photochem. Photobiol. A2014, 295, 26-33. Link
Nienhaus, L.; Scott, G.E.; Haasch, R.T.; Wieghold, S.; Lyding, J.W.; Gruebele, M., Transparent Metal Films for Detection of Single-Molecule Optical Absorption by Scanning Tunneling Microscopy. J. Phys. Chem. C2014, 118, 13196-13202. Link
Wood, J.D.; Schmucker, S.W.; Haasch, R.T.; Doidge, G.P.;Nienhaus, L.; Damhorst, G.L.;Lyons, A.S.; Gruebele, M.; Bashir, R.; Pop, E.; Lyding, J.W., Improved Graphene Growthand Fluorination on Cu with Clean Transfer to Surfaces. IEEE-NANO2012, 1-4. Link
Dhar, A.; Samiotakis, A.; Ebbinghaus, S.; Nienhaus, L.; Homouz, D.; Gruebele, M.; Cheung, M.S., Structure, Function, and Folding of Phosphoglycerate Kinase Are Strongly Perturbed by Macromolecular Crowding. Proc. Nat. Acad. Sci.2010, 107, 17586-17591. Link