60. C. Yu, X. Guo, Z. Yin, Z. Zhao, X. Li, J. Robinson, M. Muzzio, C. Barbosa, M. Shen, Y. Yuan, J. Wang, J. Antolik, G. Lu, D. Su, O. Chen, P. Guduru, C. Seto* and S. Sun*. Highly Efficient AuPd Nanoparticle Catalyst for Synthesizing Polybenzoxazole with Controlled Polymerization. Matter 2019, 1, 1-13


59. H. Yang, W. Fan. K, Hills-Kimball, O. Chen* and L-Q. Wang*. Introducing Manganese-Doped Lead-Halide Perovskite Quantum Dots – A Simple Synthesis Illustrating Optoelectronic Properties of Semiconductors. Journal of Chemical Education 2019, 96, 2300-2307. Maintext

58. M. Que, Z. Dai, H. Yang, H. Zhu, Y. Zong, W. Que*, N. Padture*, Y. Zhou* and O. Chen*. Quantum-Dot-Induced Cesium-Rich Surface Imparts Enhanced Stability to Formamidinium Lead Iodide Perovskite Solar Cells. ACS Energy Letters 2019, 4, 1970-1975

57. J. Xu, Y. Yuan, S. Zou, O. Chen and D. Zhang*. A Divide-and-Conquer Strategy for Quantification of Light Absorption, Scattering, and Emission Properties of Fluorescent Nanomaterials in Solutions. Analytical Chemistry 2019, 91, 8540-8548

56. Y. Zhang#, H. Yang#, M. Chen, N. Padture*, O. Chen* and Y. Zhou*. Fusing Nanocrystals into Thin-Films: Fabrication of High-Performance Perovskite Solar Cells with a Laterally-Homogeneous Graded-Heterojunction. Advanced Energy Materials 2019, 1900243. (# Equal contribution)

55. N. Chen, T. Cai, W. Li, K. Hills-Kimball, H. Yang, M. Que, Y. Nagaoka, Z. Liu, D. Yang, A. Dong, C. Xu, R. Zia and O. Chen*. Yb- and Mn-Doped Lead-Free Double-Perovskite Cs2AgBiX6 (X = Cl-, Br-) Nanocrystals. ACS Applied Materials & Interfaces 201911, 16855-16863

54. J. Zhao*, O. Chen*, J. He* and S. Zou*. Editorial: Metal and Semiconductor Nanocrystals. Frontiers in Chemistry 20197, 310.

53. H. Zhu, Z, Fan, L. Yu, M. A. Wilson, Y. Nagaoka, D. Eggert, C. Cao, Y. Liu, Z. Wei, X. Wang, J. He, J. Zhao, R. Li, Z. Wang, M. Gruenwald* and O. Chen*. Controlling Nanoparticle Orientations in Self-Assembly of 'Patchy' Quantum Dot-Gold Heterostructural Nanocrystals. J. Am. Chem. Soc. 2019141, 6013-6021.

52. Y. Yuan, H. Zhu, X. Wang, D. Cui, Z. Gao, D. Su, J. Zhao and O. Chen*. Cu-Catalyzed Synthesis of CdZnSe-CdZnS Alloy Quantum Dots with Highly Tunable Emission. Chemistry of Materials 2019, 31, 2635-2643.

51. Y. Yuan, H. Zhu, Y. Nagaoka, R. Tan, A. H. Davis, W. Zheng and O. Chen*. Reversible Photo-Switching of Dual Color Fluorescent Mn-Doped CdS-ZnS Quantum Dots Modulated by Diarylethene Molecules. Frontiers in Chemistry 20197, 145. (Invited to Special Theme of Frontiers in Chemistry: Rising Stars)

50. Y. Nagaoka, H. Zhu, D. Eggert and O. Chen*. Single-Component Quasicrystalline Nanocrystal Superlattices through Flexible Polygon Tiling Rule. Science 2018, 362, 1396-1400. PDF version

Perspective in Science, 2018, 362, 1354-1355
Highlighted at:
News at Brown, Brown University

49. T. Cai, H. Yang, K. Hills-Kimball, J-P. Song, H. Zhu, E. Hofman, W. Zheng, B. M. Rubenstein and O. Chen*. Synthesis of All-Inorganic Cd-Doped CsPbCl3 Perovskite Nanocrystals with Dual-Wavelength Emission. J. Phys. Chem. Lett. 20189, 7079–7084.

48. Y. Nagaoka, R. Tan, R. Li, H. Zhu, D. Eggert, Y. Wu, Y. Liu, Z. Wang and O. Chen*. Superstructures Generated from Truncated Tetrahedral Quantum Dots. Nature 2018, 561, 378-382.

Highlighted at: News at Brown, Brown University
National Science Foundation (NSF) News

47. H. Yang, Y. Zhang, K. Hills-Kimball, Y. Zhou* and O. Chen*. Building Bridges between Halide Perovskite Nanocrystals and Thin-Film Solar Cells. Sustainable Energy & Fuels 2018, 2, 2381-2397.

46. H. Zhu, Z. Fan, Y. Yuan, M. A. Wilson, K. Hills-Kimball, Z. Wei, J. He, R. Li*, M. Gruenwald* and O. Chen*. Self-Assembly of Quantum Dot-Gold Hetero-Dimer Nanocrystals with Orientational Order. Nano Letters 2018, 18, 5049-5056.

45. H. Zhu, T. Cai, M. Que, J-P. Song, B. M. Rubenstein, Z. Wang and O. Chen*. Pressure-Induced Phase Transformation and Bandgap Engineering of Formamidinium Lead Iodide Perovskite Nanocrystals. J. Phys. Chem. Lett. 20189, 4199–4205.

44. M. Heine, A. W. Fischer, C. Schlein, C. Jung, L. G. Straub, K. Gottschling, N. Mangels, Y. Yuan, S. K. Nilsson, G. Liebscher, O. Chen, R. Schreiber, R. Zechner, L. Scheja and J. Heeren*. Lipolysis triggers a systemic insulin response essential for efficient energy replenishment of activated brown adipose tissue in mice. Cell Metabolism 2018, 28, 644-655.

43. C. Fang, H. Zhu, O. Chen and M. B. Zimmt*. Reactive two-component monolayers template bottom-up assembly of nanoparticle arrays on HOPG. Chem. Comm. 2018, 54, 8056-8059.

42. Y. Chen, J. Cordero, H. Wang, D. Franke, O. Achorn, F. Freyria, I. Coropceanu, H. Wei, O. Chen, D. J Mooney and M. G. Bawendi*. A Ligand System for the Flexible Functionalization of Quantum Dots via Click Chemistry. Angew. Chem. Int. Ed. 2018130, 4742-4746.

41 J Gao*, AM Rao, H Li, J Zhang and O Chen. Carrier Transport Dynamics in High Speed Black Phosphorus Photodetectors. ACS Photonics 2018, 5, 1412-1417.

40. J. Lee, X. Feng, O. Chen, M. G. Bawendi* and J. Huang*. Stable, small, specific, low-valency quantum dots for single-molecule imaging. Nanoscale 2018, 10, 4406-4414.

39. S. Dey, Y. Zhou, Y. Sun, J. A Jenkins, D. Kriz, S. L Suib, O. Chen, S. Zou and J. Zhao*. Excitation wavelength dependent photon anti-bunching/bunching from single quantum dots near gold nanostructures. Nanoscale 2018, 10, 1038-1046.

38. Y. Chen, D. Montana, H. Wei, J. Cordero, M. Schneider, X. Le Guevel, O. Chen, O. T. Bruns and M. G. Bawendi*. Shortwave Infrared in Vivo Imaging with Gold Nanoclusters. Nano Letters 2017, 17, 6330–6334.

37. Hua Zhu, Y. Nagaoka, K. Hills-Kimball, R. Tan, L. Yu, Y. Fang, K. Wang, R. Li, Z. Wang, and O. Chen*. Pressure-Enabled Synthesis of Hetero-Dimers and Hetero-Rods through Intraparticle Coalescence and interparticle Fusion of Quantum-Dot-Au Satellite Nanocrystals. J. Am. Chem. Soc. 2017 139, 8408-8411.

36. R. Tan, Y. Yuan, Y. Nagaoka, D. Eggert, X. Wang, S. Thota, P. Guo, H. Yang, J. Zhao and O. Chen*. Monodisperse Hexagonal Pyramidal and Bipyramidal Wurtzite CdSe-CdS Core-Shell Nanocrystals. Chemistry of Materials 2017, 29, 4097-4108.

35. K. Hills-Kimball, Y. Nagaoka, C. Cao, E. Chaykovsky and O. Chen*. Synthesis of Formamidinium Lead Halide Perovskite Nanocrystals through Solid-Liquid-Solid Cation Exchange. Journal of Materials Chemistry C 2017, 5, 5680-5684. (Special Theme of Emerging Investigators 2017 and Selected as a "HOT" paper)

34. Y. Nagaoka, K. Hills-Kimball, R. Tan, R. Li, Z. Wang and O. Chen*. Nanocube Superlattices of Cesium Lead Bromide Perovskites and Pressure-Induced Phase Transformations at Atomic and Mesoscale Levels. Advanced Materials 2017, 29, 1606666.

33. O. Bruns, T. Bischof, D. Harris, D. Franke, Y. Shi, L. Riedemann, A. Bartelt, F. Jaworski, J. Carr, C. Rowlands, M. Wilson, O. Chen, H. Wei, G. Hwang, D. Montana, I. Coropceanu, O. Achorn, J. Kloepper, J. Heeren, P. So, D. Fukumura, K. Jensen, R. Jain and M. G. Bawendi*. Next Generation in vivo Optical Imaging with Short-Wave Infrared Quantum Dots. Nature Biomedical Engineering 2017, 1, 0056.

32. H. Wei, O. Bruns, M. G. Kaul, E. C. Hansen, M. Barch, A. Wisniowska, O. Chen, Y. Chen, N. Li, S. Okada, J. M. Cordero, M. Heine, C. T. Farrar, D. M. Montana, G. Adam, H. Ittrich, A. Jasanoff, P. Nielsen and M. G. Bawendi*. Exceedingly Small Iron Oxide Nanoparticles as Positive MRI Contrast Agents. Proceedings of the National Academy of Sciences of the United States of America 2017, 114, 2325-2330.

31. D. Franke, D. Harris, O. Chen, O. Bruns, J. Carr, M. W. Wilson and M. G. Bawendi*. Continuous Injection Synthesis of Indium Arsenide Quantum Dots for Short-Wavelength Infrared Imaging. Nature Communications 2016, 7, 12749

30. R. Tan, H. Zhu, C. Cao and O. Chen*. Multi-Component Superstructures Self-Assembled from Nanocrystal Building Blocks. Nanoscale 2016, 8, 9944-9961. (Invited, Selected as "HOT Article Collection")

29. R. Li, J. Zhang, R. Tan, F. Gerdes, Z. Luo, H. Xu, J. A. Hollingsworth, C. Klinke, O. Chen and Z. Wang*. Competing Interactions between Various Entropic Forces toward Assembly of Pt3Ni Octahedra into a Body-Centered Cubic Superlattice. Nano Letters 2016, 16, 2792-2799.

Prior Publications

28. R. Jensen, I. Huang, O. Chen, J. Choy, T. Bischof, M. Loncar, M. G. Bawendi. Optical Trapping and Two-Photon Excitation of Colloidal Quantum Dots using Bowtie Apertures. ACS Photonics. 2016, 3, 423-427.

27. Dey, Y. Zhou, X. Tian, J. A. Jenkins, O. Chen, S. Zou and J. Zhao. An Experimental and Theoretical Mechanistic Study of Biexciton Quantum Yield Enhancement in Single Quantum Dots Near Gold Nanoparticles. Nanoscale. 2015, 7, 6851-6858.

26. P. D. Chowdary, D. L. Che, L. Kaplan, O. Chen, K. Pu, M. G. Bawendi and B. Cui. Nanoparticle-assisted optical tethering of endosomes reveals the cooperative function of dyneins in retrograde axonal transport. Scientific Reports. 2015, 5, 18059.

25. J. Cui J, A. P. Beyler, I. Coropceanu, L. Cleary, T. R. Avila, Y. Chen, J. M. Cordero, S. L. Heathcote, D. K. Harris, O. Chen, J. Cao and M. G. Bawendi.Evolution of the Single-Nanocrystal Photoluminescence Linewidth with Size and Shell: Implications for Exciton-Phonon Coupling and the Optimization of Spectral Linewidths. Nano Letters. 2015, 16, 289-296.

24. X. Zhang, A. Shamirian, A. M. Jawaid, C. M. Tyrakowski, L. E. Page, A. Das, O. Chen, A. Isovic, A. Hassan and P. T. Snee. Monolayer Silance-Coated, Water-Soluble Quantum Dots. Small. 2015, 11, 6091-6096.

23. M. Abolhasani, C. W. Coley, L. Xie, O. Chen, M. G. Bawendi and J. F. Jensen. Oscillatory Microprocessor for Growth and in Situ Characterization of Semiconductor Nanocrystals. Chemistry of Materials. 2015, 27, 6131-6138.

22. G. Satat, B. Heshmat, C. Barsi, D. Raviv, O. Chen, M. G. Bawendi and R. Raskar. Locating and Classifying Fluorescent Tags Behind Turbid Layers Non-Invasively Using Sparsity-Based Time-Resolved Inversion. Nature Communications. 2015, 6, 6796.

21. O. Chen, L. Riedemann, F. Etoc, H. Herrmann, M. Coppey, M. Barch, C. T. Farrar, J. Zhao, O. T. Bruns, H. Wei, P. Guo, J. Cui, R. Jensen, Y. Chen, D. K. Harris, J. M. Cordero, Z. Wang, A. Jasanoff, D. Fukumura, R. Reimer, M. Dahan, R. K. Jain and M. G. Bawendi, et al. Magneto-Fluorescent Core-Shell Supernanoparticles. Nature Communications. 2014, 5, 5093. (Highlighted in the MIT News)

20. O. Chen, H. Wei, A. Maurice, M. G. Bawendi and P. Reiss. Pure Colors from Core-Shell Quantum Dots. MRS Bulletin. 2013, 38, 696-702. (Invited)

19. J. Cui, A. Beyler, L. Marshall, O. Chen, D. Harris, D. Wanger, X. Brokmann and M. G. Bawendi. Direct Probe of Spectral Inhomogeneity Reveals Synthetic Tunability of Single-Nanocrystal Spectral Linewidths. Nature Chemistry. 2013, 5, 602-606.

18. O. Chen, J. Zhao, V. P. Chauhan, J. Cui, C. Wong, D. Harris, H. Wei, H. S. Han, D. Fukumura, R. K. Jain and M. G. Bawendi. Compact High-Quality CdSe-CdS Core-Shell Nanocrystals with Narrow Emission Linewidths and Suppressed Blinking. Nature Materials. 2013, 12, 445-451. (Highlighted on the MIT homepage)

17. H. Wei, O. Bruns, O. Chen and M. G. Bawendi. Compact Zwitterion-Coated Iron Oxide Nanoparticles for in vitro and in vivo Imaging. Integr. Biol. 2013, 5, 108-114.

16. J. Zhao, O. Chen, D. B. Strasfeld and M. G. Bawendi. Biexciton Quantum Yield Heterogeneities in Single CdSe (CdS) Core (Shell) Nanocrystals and Its Correlation to Exciton Blinking. Nano Letters. 2012, 12 (9), 4477-4483.

15. V. P. Chauhan, T. Stylianopoulos, J. D. Martin, Z. Popovic, O. Chen, W. S. Kamoun, M. G. Bawendi, D. Fukumura and R. K. Jain. Normalization of Tumor Blood Vessels Improves the Delivery of Nanomedicines in A Size-Dependent Manner. Nature Nanotechnology. 2012, 7, 383-388.

14. T. Wang, J. Zhuang, J. Lynch, O. Chen, Z. Wang, X. Wang, D. LaMontagne, H. Wu, Z. Wang and Y. C. Cao. Self-Assembled Colloidal Superparticles from Nanorods. Science. 2012, 338 (6105), 358-363.

13. V. P. Chauhan, Z. Popovic, O. Chen, J. Cui, D. Fukumura, R. K. Jain and M. G. Bawendi. Fluorescent Nanorods and Nanospheres for Real-Time In Vivo Probing of Nanoparticle Shape-Dependent Tumor Penetration. Angew. Chem. Int. Ed. 2011, 50, 11417-11420.

12. Y. Nagaoka, O. Chen, Z. Wang and Y. C. Cao. Structure Control of Nanocrystal Superlattices Using Organic Guest Molecules. J. Am. Chem. Soc. 2011, 134 (6), 2868-2871.

11. O. Chen, Y. Yang, T. Wang, H. Wu, C. Niu, J, Yang and Y. C. Cao. Surface-Functionalization-Dependent Optical Properties of II-VI Semiconductor Nanocrystals. J. Am. Chem. Soc. 2011, 133 (43), 17504-17512.

10. H. Wu, O. Chen, J. Zhuang, J. Lynch, D. LaMontagne, Y. Nagaoka and Y. C. Cao. Formation of Heterodimer Nanocrystals: UO2/In2O3 and FePt/In2O3. J. Am. Chem. Soc. 2011, 133 (43), 14327-14337.

9. O. Chen, D. Shelby, Y. Yang, J. Zhuang, T. Wang, C. Niu, N. Omenetto and Y. C. Cao. Excitation-Intensity-Dependent, Color-Tunable, Dual Emissions from Mn-Doped CdS/ZnS Core/Shell Nanocrystals. Angew. Chem. Int. Ed. 2010, 49, 10132-10135. (Selected as a "Hot paper")

8. Z. Wang, O. Chen, Y. C. Cao, K. Finkelstein, D. Smilgies, X. Lu and W. A. Bassett. Integrating In-situ High Pressure Small and Wide Angle Synchrotron X-ray Scattering for Exploiting New Physics of Nanoparticle Supercrystals. Rev. Sci. Instru. 2010, 81, 093902-1-5.

7. O. Chen, J. Zhuang, F. Guzzetta, J. Lynch, A. Angerhofer and Y. C. Cao. Synthesis of Water-Soluble 2,2¡-Diphenyl-1-Picrylhydrazyl Nanoparticles: A New Standard for Electron Paramagnetic Resonance Spectroscopy. J. Am. Chem. Soc. 2009, 131 (35), 12542-12543.

6. J. Zhuang, A. Shaller, J. Lynch, H. Wu, O. Chen, A. D.Q. Li and Y. C. Cao. Cylindrical Superparticles from Semiconductor Nanorods. J. Am. Chem. Soc. 2009, 131(17), 6084-6085.

5. Y. Yang, O. Chen, A. Angerhofer and Y. C. Cao. Radio-Position-Controlled Doping of CdS/ZnS Core/Shell Nanocrystals: Surface Effects and Position-Dependent Properties. Chem. Eur. J. 2009, 15, 3186-3197.

4. O. Chen, X. Chen, Y. Yang, J. Lynch, H. Wu, J. Zhuang and Y. C. Cao. Synthesis of Metal-Selenide Nanocrystals Using Selenium Dioxide as the Selenium Precursor. Angew. Chem. Int. Ed. 2008, 47, 8638-8641. (Selected as a "Very Important Paper")

3. Y. Yang, O. Chen, A. Angerhofer and Y. C. Cao. On Doping CdS/ZnS Core/Shell Nanocrystals with Mn. J. Am. Chem. Soc. 2008, 130 (46), 15649-15661.

2. Y. Yang, O. Chen, A. Angerhofer and Y. C. Cao. Radial-Position-Controlled Doping in CdS/ZnS Core/Shell Nanocrystals. J. Am. Chem. Soc. 2006, 128 (38), 12428-12429.

1. S. Yin, S. Wei, G. Xie, Q. Bian, J. Zhang, O. Chen and H. Yang. XAFS and XRD Studies on Structures of Nd9Fe85-xMnxB6 Nanocomposites. Phys. Scr. 2005, T115, 658-660.