Publications

(†equal contribution, *corresponding)                                              Also see google scholar

 

2017

39. Letian Dou*;  “Emerging two-dimensional halide perovskite nanomaterials”, Journal of Materials Chemistry C 2017, DOI: 10.1039/C7TC02863F.

38. Daniele M Monahan, Liang Guo, Jia Lin, Letian Dou, Peidong Yang, Graham R Fleming;  “A Room Temperature Coherent Optical Phonon in 2D Electronic Spectra of CH3NH3PbI3 Perovskite is a Possible Cooling Bottleneck”, The Journal of Physical Chemistry Letters 2017, 8, 3211-3215.

37. Letian Dou, Minliang Lai, Christopher S. Kley, Yiming Yang, Connor G. Bischak, Dandan Zhang, Samuel W. Eaton, Naomi S. Ginsberg, Peidong Yang;  “Spatially Resolved Multi-Color CsPbX3 Nanowire Heterojunctions via Anion Exchange”, PNAS 2017, doi:10.1073/pnas.1703860114.

36. Zhiqiang Niu, Fan Cui, Yi Yu, Nigel Becknell, Yuchun Sun, Garo Khanarian, Dohyung Kim, Letian Dou, Ahmad Dehestani, Kerstin Schierle-Arndt, Peidong Yang;  “Ultrathin Epitaxial Cu@Au Core−Shell Nanowires for Stable Transparent Conductors”, Journal of the American Chemical Society 2017, 139, 7348-7354.

35. Fan Cui, Letian Dou, Qin Yang, Yi Yu, Zhiqiang Niu, Yuchun Sun, Ahmad Dehestani, Kerstin Schierle-Arndt, Peidong Yang;  “Benzoin Free Radical as an Effective Reducing Agent for Copper Nanowire Synthesis”, Journal of the American Chemical Society 2017, 139, 3027-3032.

34. Minliang Lai, Qiao Kong, Connor G. Bischak, Yi Yu, Letian Dou, Samuel W. Eaton, Naomi S. Ginsberg, Peidong Yang; “Structural, optical, and electrical study of phase controlled cesium lead iodide nanowires”, Nano Research 2017, 10, 1107-1114.

2016

33. Yi Yu, Dandan Zhang, Christian Kisielowski, Letian Dou, Nikilay Kornienko, Yehonadav Bekenstein, A. Paul Alivisatos, Peidong Yang; “Atomic Resolution Imaging of Halide Perovskites”, Nano Letters 2016, 16,7530-7535.

32. Samuel W. Eaton, Minliang Lai, Natalie Gibson, Andrew B. Wong, Letian Dou, Jie Ma, Lin-Wang Wang, Steve Leone, Peidong Yang; “Lasing in Robust Cesium Lead Halide Perovskite Nanowires”, PNAS 2016, 113, 1993-1998.

31. Letian Dou, Fan Cui, Yi Yu, Samuel W. Eaton, Arky Yang, Joaquin Resasco, Christian Schildknecht, Kerstin Schierle-Arndt, Peidong Yang; “Solution-processed ultra thin copper-reduced graphene oxide core-shell nanowire transparent conductors”, ACS Nano 2016, 10, 2600-2606.

2015

30. Letian Dou†, Andrew B. Wong†, Yi Yu†, Minliang Lai, Nikolay Kornienko, Samuel W. Eaton, Anthony Fu, Connor G. Bischak, Jie Ma, Tina Ding, Naomi S. Ginsberg, Lin-Wang Wang, A. Paul Alivisatos, Peidong Yang; “Atomically Thin Two-dimensional Organic-inorganic Hybrid Perovskites”, Science 2015, 349, 1518-1521.

29. Letian Dou, Yongsheng Liu, Ziruo Hong, Gang Li, Yang Yang; “Solution-processed Low-bandgap Near-IR Conjugated Polymers/molecules for Organic Electronics”, Chemical Reviews 2015, 115, 12633-12665. (Invited review article).

28. Fan Cui, Yi Yu, Letian Dou, Jianwei Sun, Christian Schildknecht, Kerstin Schierle-Arndt, Peidong Yang; “Ultra-thin colloidal copper nanowires for transparent conductor with high performance”, Nano Letters 2015, 2015, 15, 7610-7615.

27. Dandan Zhang, Samuel W. Eaton, Yi Yu, Letian Dou, Peidong Yang; “Solution-phase Synthesis of Cesium Lead Halide Perovskite Nanowires”, Journal of the American Chemical Society 2015, 137, 9230-9233.

26. Andrew B. Wong, Minliang Lai, Samuel W. Eaton, Yi Yu, Elbert Lin, Anthony Fu, Letian Dou, Peidong Yang; “Growth and Anion Exchange Conversion of CH3NH3PbX3 Nanorod Arrays for Light-Emitting Diodes”, Nano Letters 2015, 15, 5519-5524.

25. Yang (Michael) Yang, Wei Chen, Letian Dou, Wei-Hsuan Chang, Hsin-Sheng Duan, Brion Bob, Gang Li, Yang Yang; “Molecular Compatibility Enabling High-Performance Multiple Donor Bulk Heterojunction Solar Cells”, Nature Photonics 2015, 9, 190-198.

24. Wei-Hsuan Chang, Lei Meng, Letian Dou, Jingbi You, Chun-Chao Chen, Yang (Michael) Yang, Eric Patrick Young, Gang Li, Yang Yang; “A Selenophene Containing Benzodithiophene-alt-thienothiophene Polymer for Additive-Free High Performance Solar Cell”, Macromolecules 2015, 48, 562-568.

23. Yongsheng Liu, Qi Chen, Hsin-Sheng Duan, Huanping Zhou, Yang Michael Yang, Huajun Chen, Song Luo, Tze-Bin Song, Letian Dou, Ziruo Hong, Yang Yang; “A dopant-free organic hole transport material for efficient planar heterojunction perovskite solar cells”, Journal of Materials Chemistry A 2015, 22, 11940-11947.

2014

22. Letian Dou, Yonghao Zheng, Xiaoqin Shen, Guang Wu, Kirk Fields, Wan-Ching Hsu, Huanping Zhou, Yang Yang, Fred Wudl; “Single-Crystal Linear Polymers Through Visible Light-Triggered Topochemical Quantitative Polymerization”, Science 2014, 343, 272-277.

(also see Perspectives by Nancy Goroff; “A Clear Path for Polymer Crystallization”, Science 2014, 343, 258.)

21. Letian Dou†, Yang (Michael) Yang†, Jingbi You†, Ziruo Hong, Wei-Hsuan Chang, Gang Li, Yang Yang; “Solution-Processed Hybrid Perovskite Photodetectors with High Detectivity”, Nature Communications 2014, 5, 5404.

20. Jing Gao, Letian Dou, Wei Chen, Chun-Chao Chen, Xuanrong Guo, Jingbi You, Brion Bob, Wei-Hsuan Chang, Joseph Strzalka, Cheng Wang, Gang Li, and Yang Yang; “Improving Structural Order for a High-Performance Diketopyrrolopyrrole-Based Polymer Solar Cell with a Thick Active Layer”, Advanced Energy Materials 2014, 4, 1300739.

19. Jing Gao, Wei Chen, Letian Dou, Chun-Chao Chen, Wei-Hsuan Chang, Yongsheng Liu, Gang Li, and Yang Yang; “Elucidating double aggregation mechanisms in the morphology optimization of Diketopyrrolopyrrole-based narrow bandgap polymer solar cells”, Advanced Materials 2014, 26, 3142-3147.

18. Wei-Hsuan Chang, Jing Gao, Letian Dou, Chun-Chao Chen, Yongsheng Liu, and Yang; “Side-Chain Tunability via Triple Component Random Copolymerization for Better Photovoltaic Polymers”, Advanced Energy Materials 2014, 4, 1300864.

17. Qi Chen, Huanping Zhou, Tze-Bin Song, Song Luo, Ziruo Hong, Hsin-Sheng Duan, Letian Dou, Yongsheng Liu, and Yang Yang; “Controllable self-induced passivation of hybrid lead iodide perovskites toward high performance solar cells”, Nano Letters 2014, 14, 4158-4163.

2013

16. Letian Dou, Jingbi You, Ziruo Hong, Zheng Xu, Gang Li, Robert A. Street, and Yang Yang; “25th Anniversary Article: A Decade of Organic/Polymeric Photovoltaic Research”, Advanced Materials 2013, 25, 6642-6671. (Invited review article)

15. Jingbi You†, Letian Dou†, Ken Yoshimura, Takehito Kato, Kenichiro Ohya, Tom Moriarty, Keith Emery, Chun-Chao Chen, Jing Gao, Gang Li and Yang Yang; “A polymer tandem solar cell with 10.6% power conversion efficiency”, Nature Communications 2013, 4, 1446. (Over 1500 citations)

14. Letian Dou, Wei-Hsuan Chang, Jing Gao, Chun-Chao Chen, Jingbi You and Yang Yang; “A Selenium-Substituted Low-Bandgap Polymer with Versatile Photovoltaic Applications”, Advanced Materials 2013, 25, 825-831. (Over 300 citations)

13. Letian Dou, Chun-Chao Chen, Ken Yoshimura, Kenichiro Ohya, Wei-Hsuan Chang, Jing Gao, Yongsheng Liu, Eric Richard and Yang Yang; “Synthesis of 5H-Dithieno[3,2-b:2’,3’-d]pyran as an Electron-Rich Building Block for Donor-Acceptor Type Low-Bandgap Polymers”, Macromolecules 2013, 46, 3384-3390.

(Selected in SYNFACTS for its important insights in polymer chemistry)

12. Chun-Chao Chen, Letian Dou, Jing Gao, Wei-Hsuan Chang, Gang Li and Yang Yang; “High-performance semi-transparent polymer solar cells possessing tandem structures”, Energy & Environmental Science 2013, 6, 2714-2720.

11. Jingbi You, Letian Dou, Ziruo Hong, Gang Li, Yang Yang; “Recent trends in polymer tandem solar cell research”, Progress in Polymer Science 2013, 38, 1909-1928. (Invited review article)

10. Vladan Jankovic, Yang Yang, Jingbi You, Letian Dou, Yongsheng Liu, Puilam Cheung, Jane P. Chang and Yang Yang; “Active Layer-Incorporated, Spectrally-Tuned Au/SiO2 Core/Shell Nanorod-Based Light Trapping for Organic Photovoltaics”, ACS Nano 2013, 7, 3815–3822.

9. Yongsheng Liu, Yang Yang, Chun-Chao Chen, Qi Chen, Letian Dou, Ziruo Hong, Gang Li and Yang Yang; “Solution-Processed Small Molecules Using Different Electron Linkers for High-Performance Solar Cells”, Advanced Materials 2013, 25, 4657-4662.

8. Yongsheng Liu, Chun-Chao Chen, Ziruo Hong, Jing Gao, Yang (Michael) Yang, Huanping Zhou, Letian Dou, Gang Li, Yang Yang; “Solution-processed small-molecule solar cells: breaking the 10% power conversion efficiency”, Scientific Reports 2013, 3, 3356.

2012

7. Letian Dou†, Jingbi You†, Jun Yang, Chun-Chao Chen, Youjun He, Seiichiro Murase, Tom Moriarty, Keith Emery, Gang Li and Yang Yang; “Tandem polymer solar cells featuring a spectrally matched low-bandgap polymer”, Nature Photonics 2012, 6, 180-185.

(Over 1000 citations; Top 5 worldwide scientific breakthrough of 2012 highlighted in USA Today; “HOT PAPER IN PHYSICS” highlighted by SCIENCEWATCH; and numerous media reports)

6. Letian Dou, Jing Gao, Eric Richard, Jingbi You, Chun-Chao Chen, Kitty C. Cha, Youjun He, Gang Li and Yang Yang; “Systematic Investigation of Benzodithiophene and Diketopyrrolopyrrole Based Low-bandgap Polymers Designed for Single Junction and Tandem Polymer Solar Cells”, Journal of the American Chemical Society 2012, 134, 10071-10079. (Over 300 citations)

5. Chun-Chao Chen†, Letian Dou†, Rui Zhu, Choong-Heui Chung, Tze-Bin Song, Yue Bing Zheng, Steve Hawks, Gang Li, Paul S. Weiss, and Yang Yang; “Visibly Transparent Polymer Solar Cells Produced by Solution Processing”, ACS Nano 2012, 6, 7185-7190.

(Over 200 media coverage including Time magazine, Los Angeles Times; most read article in ACS nano 2012)

4. Jingbi You, Chun‐Chao Chen, Letian Dou, Seiichiro Murase, Hsin‐Sheng Duan, Steve Hawks, Tao Xu, Hae Jung Son, Luping Yu, Gang Li, Yang Yang; “Metal Oxide Nanoparticles as an Electron‐Transport Layer in High‐Performance and Stable Inverted Polymer Solar Cells”, Advanced Materials 2012, 24, 5267-5272.

3. Youjun He, Jingbi You, Letian Dou, Chunchao Chen, Eric Richard, Kitty C Cha, Yue Wu, Gang Li, Yang Yang; “High performance low band gap polymer solar cells with non-conventional acceptor”, Chemical Communications 2012, 48, 7616-7618.

2. Youjun He, Chun-Chao Chen, Eric Richard, Letian Dou, Yue Wu, Gang Li, Yang Yang; “Novel fullerene acceptors: synthesis and application in low band gap polymer solar cells”, Journal of Materials Chemistry 2012, 22, 13391-13394.

2011 and before

1. Yijun Zheng, Jia Zheng, Letian Dou, Wenqiang Qiao, Xinhua Wan; “Synthesis and characterization of a novel kind of near-infrared electrochromic polymers containing an anthraquinone imide group and ionic moieties”, Journal of Materials Chemistry 2009, 19, 8470-8477.

Patents

1.  Active Materials for Electro-Optic Devices and Electro-Optic Devices

Yang Yang, Letian Dou, Jingbi You    (WO2012135527, US20140020739 A1, licensed by EFL Tech.)

2.   Semi-Transparent, Transparent, Stacked and Top-illuminated Organic Photovoltaic Devices

Yang Yang, Rui Zhu, Chun-Chao Chen, Letian Dou, Gang Li   (WO2014007867 A1, US20140084266 A1, licensed by EFL Tech.)

3.   Conjugated Polymers for Electronic Devices

Yang Yang, Letian Dou, Wei-Husan Chang    (US20150028265 A1)

4.   Electro-Optic Device Having Nanowires Interconnected into A Network of Nanowires

Yang Yang, Rui Zhu, Chun-Chao Chen, Letian Dou, Gang Li    (WO2014007867A1, US20140084266, licensed by EFL Tech.)

5.   Ultra Thin Copper-Reduced Graphene Oxide Core-Shell Nanowires based Transparent Conductors

Peidong Yang, Letian Dou, Fan Cui    (BK-2015-154, provisional filing)

6.   Synthesis of Ultra-Thin Metal Nanowires Using Organic Free Radicals

Peidong Yang, Fan Cui, Letian Dou    (UCALP073P/BK-2016- 136, provisional filing)

Conference Presentations

1.  Atomically Thin Two-dimensional Organic-inorganic Hybrid Perovskites
Letian Dou, Andrew B. Wong, Yi Yu and Peidong Yang
2016 ECS Meeting, May 2016, San Diego, CA. (Invited oral presentation)
2.  Low-Bandgap Polymers Designed for Tandem Polymer Solar Cells
Letian Dou, Jingbi You, Chun-Chao Chen, Jing Gao, Gang Li and Yang Yang
2014 MRS Spring Meeting & Exhibit, April 2014, San Francisco, CA. (oral presentation)
3.   Single-Crystal Linear Polymers Through Visible Light-Triggered Topo chemical Quantitative Polymerization
Letian Dou
2014 Department of Materials Science Seminar, UCLA (oral presentation)
4.  Benzodithiophene- and Diketopyrrolopyrrole-based Low-bandgap Polymers Designed for Tandem Polymer Solar Cells
Letian Dou, Jingbi You, ChunChao Chen, Jing Gao, Wei-Hsuan Chang, Gang Li and Yang Yang
2013 MRS Spring Meeting & Exhibit, April 2013, San Francisco, CA. (oral presentation)5.  Recent progress in polymer solar cells and tandem polymer solar cells
Letian Dou, Jingbi You, Chun-Chao Chen, Jing Gao, Gang Li and Yang Yang
ACS 244th National Meeting, August 2012, Philadelphia, PA. (Invited oral presentation)