Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Golam Bappi"'
Autor:
Chun Zhou, Joao M. Pina, Tong Zhu, Darshan H. Parmar, Hao Chang, Jie Yu, Fanglong Yuan, Golam Bappi, Yi Hou, Xiaopeng Zheng, Jehad Abed, Hao Chen, Jian Zhang, Yuan Gao, Bin Chen, Ya‐Kun Wang, Haijie Chen, Tianju Zhang, Sjoerd Hoogland, Makhsud I. Saidaminov, Liaoxin Sun, Osman M. Bakr, Hongxing Dong, Long Zhang, Edward H. Sargent
Publikováno v:
Advanced Science, Vol 8, Iss 20, Pp n/a-n/a (2021)
Abstract Perovskite quantum dots (QDs) are of interest for solution‐processed lasers; however, their short Auger lifetime has limited lasing operation principally to the femtosecond temporal regime the photoexcitation levels to achieve optical gain
Externí odkaz:
https://doaj.org/article/02d33ad0ae214097aa31bc265e10d69e
Autor:
Xiwen Gong, Ziru Huang, Randy Sabatini, Chih-Shan Tan, Golam Bappi, Grant Walters, Andrew Proppe, Makhsud I. Saidaminov, Oleksandr Voznyy, Shana O. Kelley, Edward H. Sargent
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-7 (2019)
Reliable and consistent measurement of the carrier diffusion length in metal halide perovskite single crystals has proven difficult. Here Gong, Huang et al. systematically included very dilute quantum dot quenchers into perovskite crystals and develo
Externí odkaz:
https://doaj.org/article/e1a2ba273bf44c80b60da797ba939f4c
Autor:
Hongyan Liang, Fanglong Yuan, Andrew Johnston, Congcong Gao, Hitarth Choubisa, Yuan Gao, Ya‐Kun Wang, Laxmi Kishore Sagar, Bin Sun, Peicheng Li, Golam Bappi, Bin Chen, Jun Li, Yunkun Wang, Yitong Dong, Dongxin Ma, Yunan Gao, Yongchang Liu, Mingjian Yuan, Makhsud I. Saidaminov, Sjoerd Hoogland, Zheng‐Hong Lu, Edward H. Sargent
Publikováno v:
Advanced Science, Vol 7, Iss 8, Pp n/a-n/a (2020)
Abstract Perovskite‐based light‐emitting diodes (PeLEDs) are now approaching the upper limits of external quantum efficiency (EQE); however, their application is currently limited by reliance on lead and by inadequate color purity. The Rec. 2020
Externí odkaz:
https://doaj.org/article/47af31e8bfff4982bfea3a80f490703d
Autor:
Arseniy I. Kuznetsov, Randy P. Sabatini, Mengfei Wu, Golam Bappi, Ramón Paniagua-Domínguez, Edward H. Sargent, Laxmi Kishore Sagar, Lu Ding
Publikováno v:
Nano Letters. 21:9754-9760
Colloidal quantum dots (CQDs) are a promising gain material for solution-processed, wavelength-tunable lasers, with potential application in displays, communications, and biomedical devices. In this work, we combine a CQD film with an array of nanoan
Autor:
Larissa Levina, Andrew Johnston, Sjoerd Hoogland, Bin Chen, Petar Todorović, Makhsud I. Saidaminov, Edward H. Sargent, Laxmi Kishore Sagar, Min-Jae Choi, Golam Bappi, Dae-Hyun Nam, F. Pelayo García de Arquer, Oleksandr Voznyy
Publikováno v:
Chemistry of Materials. 32:7703-7709
Colloidal quantum dots are promising for low-cost optoelectronic devices such as solar cells, light-emitting diodes (LEDs), lasers, and photodetectors. InAs-based quantum dots (QDs) are well suited...
Autor:
Larissa Levina, Laxmi Kishore Sagar, Sjoerd Hoogland, Edward H. Sargent, Bin Chen, Makhsud I. Saidaminov, Petar Todorović, F. Pelayo García de Arquer, Andrew Johnston, Golam Bappi
Publikováno v:
Chemistry of Materials. 32:2919-2925
Bright, narrow spectrum infrared emitters, particularly Cd- and Pb-free materials, are of interest for bioimaging, photodetection, and telecommunications. InAs-based quantum dots (QDs) are promising emitters in this spectral range; however, efforts t
Autor:
Jun Guan, Oleksandr Voznyy, Edward H. Sargent, Golam Bappi, Laxmi Kishore Sagar, Danqing Wang, Ran Li, Fengjia Fan, Marc R. Bourgeois, Nicolas E. Watkins, George C. Schatz, Teri W. Odom, Sjoerd Hoogland, Richard D. Schaller, Joao M. Pina, Larissa Levina
Publikováno v:
Nano Letters. 20:1468-1474
We report how the direction of quantum dot (QD) lasing can be engineered by exploiting high-symmetry points in plasmonic nanoparticle (NP) lattices. The nanolaser architecture consists of CdSe-CdS core-shell QD layers conformally coated on two-dimens
Autor:
Andrew Johnston, Fanglong Yuan, James Z. Fan, Ya-Kun Wang, Xiaopeng Zheng, Oleksandr Voznyy, Edward H. Sargent, Bin Chen, Kamalpreet Singh, Makhsud I. Saidaminov, Zheng-Hong Lu, Hao Kung, Osman M. Bakr, Peicheng Li, Yitong Dong, Geetu Sharma, Golam Bappi
Publikováno v:
Nature Photonics. 14:171-176
Deep-blue light-emitting diodes (LEDs) (emitting at wavelengths of less than 450 nm) are important for solid-state lighting, vivid displays and high-density information storage. Colloidal quantum dots, typically based on heavy metals such as cadmium
Autor:
Joao M. Pina, Ya-Kun Wang, Osman M. Bakr, Bin Chen, Jehad Abed, Makhsud I. Saidaminov, Yuan Gao, Chun Zhou, Hao Chen, Hongxing Dong, Jie Yu, Xiaopeng Zheng, Long Zhang, Haijie Chen, Edward H. Sargent, Fanglong Yuan, Golam Bappi, Tianju Zhang, Sjoerd Hoogland, Hao Chang, Darshan H. Parmar, Tong Zhu, Jian Zhang, Yi Hou, Liaoxin Sun
Publikováno v:
Advanced Science
Advanced Science, Vol 8, Iss 20, Pp n/a-n/a (2021)
Advanced Science, Vol 8, Iss 20, Pp n/a-n/a (2021)
Perovskite quantum dots (QDs) are of interest for solution‐processed lasers; however, their short Auger lifetime has limited lasing operation principally to the femtosecond temporal regime the photoexcitation levels to achieve optical gain threshol
Autor:
Derek M. Kita, Josep M. Fargas Cabanillas, Golam Bappi, Forrest G. Sedgwick, Mark T. Wade, John M. Fini, Derek Van Orden, Milos A. Popovic, Anatol Khilo
Publikováno v:
OSA Advanced Photonics Congress 2021.
We demonstrate a 75 µm-long rapid adiabatic coupler (RAC) with an average insertion loss <0.025 dB/coupler and an average power splitting ratio of 50±1.09% over 40 nm bandwidth and 68 reticles across a 300 mm 45 nm SOI CMOS wafer.