Results 31 to 40 of about 497 (147)

Quantum key distribution using a triggered quantum dot source emitting near 1.3 microns

, 2007
We report the distribution of a cryptographic key, secure from photon number splitting attacks, over 35 km of optical fiber using single photons from an InAs quantum dot emitting ~1.3 microns in a pillar microcavity.
A. J. Shields, D. A. Ritchie, Gottesman D., M. B. Ward, O. Z. Karimov, P. Atkinson, P. M. Intallura, P. See, Z. L. Yuan   +8 more
core   +1 more source

잉크젯 양자점 발광 다이오드의 성능 향상에 대한 연구 [PDF]

, 2021
학위논문 (박사) -- 서울대학교 대학원 : 공과대학 전기·정보공학부, 2021. 2. 곽정훈.콜로이드성 양자점은 광소자에 사용하기에 적합한 광학적 전기적 특성을 가지고 있다. 특히나 높은 양자효율, 좁은 발광 파장대, 무기 재료의 내적 열안정성과 광안정성을 가지고 있기에 발광다이오드의 광물질로 사용하기에 적합하다. 그러나 양자점 소재는 콜로이드로 용액 공정 기반이기 때문에 차세대 디스플레이로 사용되기 위해서는 패터닝 기술이 매우 중요하다.
노희범
core  

Truly form-factor–free industrially scalable system integration for electronic textile architectures with multifunctional fiber devices [PDF]

, 2023
Funding Information: This work was supported by the European Commission (H2020, 1D-NEON, grant agreement ID: 685758). J.M.K. and L.G.O. acknowledge the support from the U.K. Research and Innovation (EPSRC, EP/P027628/1). We thank Y.
Amaratunga, Gehan A. J., An, Geon Hyoung, Bang, Sang Yun, Barquinha, Pedro, Candel, Virginia Garcia, Cha, Seung Nam, Chhowalla, Manish, Choi, Hyung Woo, Choi, Youngjin, Costantino, Antonino, Durães, Nelson, Eisenreich, Martin, Emanuele, Umberto, Fan, Xiang Bing, Figueiredo, Cátia Lopes, Fortunato, Elvira, Gomes, João, Han, Soo Deok, Harden-Chaters, William, Igreja, Rui, Jiménez, David, Jo, Jeong Wan, Jovančić, Petar, Jung, Sung Min, Kim, Chul Hong, Kim, Jong Min, Kim, Yoonwoo, Lee, Hanleem, Lee, Sanghyo, Lee, Tae Hoon, Lee, Young Woo, Lucassen, Marcel, Marrani, Alessio, Martins, Rodrigo, Meyer, Sebastian, Momentè, Roberto, Moncunill, Francesc Mañosa, Nejim, Ahmed, Nicotera, Salvatore, Occhipinti, Luigi G., Santos, Ângelo, Shin, Dong Wook, Sinopoli, Stefano, Sohn, Jung Inn, Springer, Martijn, Suh, Yo Han, Ullrich, Kay, Yang, Jiajie, Zhan, Shijie   +48 more
core   +1 more source

Unraveling the efficiency losses and improving methods in quantum dot-based infrared up-conversion photodetectors

Opto-Electronic Science
Quantum dot-based up-conversion photodetector, in which an infrared photodiode (PD) and a quantum dot light-emitting diode (QLED) are back-to-back connected, is a promising candidate for low-cost infrared imaging.
Jiao Jiao Liu, Xinxin Yang, Qiulei Xu, Ruiguang Chang, Zhenghui Wu, Huaibin Shen   +5 more
doaj   +1 more source

인화인듐 양자점 발광 다이오드의 안정성 향상을 위한 열화 분석 및 리간드 치환 방법 [PDF]

, 2023
학위논문(박사) -- 서울대학교대학원 : 공과대학 전기·정보공학부, 2023. 2. 곽정훈.최근 조명 및 디스플레이 응용 분야를 위한 콜로이드 양자점 발광 다이오드에 대한 관심이 양자점의 고순도, 색상 제어의 용이성 및 공정 단순성 등 뛰어난 특성으로 인해 증가하고 있다. 수년 동안 양자점 발광 다이오드의 소자 성능은 재료 합성, 전기 물리 분석 및 소자 설계에 대한 여러 연구에 의해 향상되었다.
김경환
core  

Quantum Dot/Light-Emitting Electrochemical Cell Hybrid Device and Mechanism of Its Operation [PDF]

, 2016
A new type of light-emitting hybrid device based on colloidal quantum dots (QDs) and an ionic transition metal complex (iTMC) light-emitting electrochemical cell (LEC) is introduced.
Bacher, Gerd, Demir, Hilmi Volkan, Frohleiks, Julia, Keleştemur, Yusuf, Nannen, Ekaterina, Wepfer, Svenja   +5 more
core   +1 more source

Research Progress and Applications of Non‐Carrier‐Injection Electroluminescence

Advanced Electronic Materials, EarlyView.
Non‐carrier‐injection electroluminescence (NCI‐EL) uses AC fields and displacement currents to trigger light from internal charge reservoirs, enabling minimalist emitters with remotely coupled terminals. This review maps shared mechanisms across organics, GaN, quantum dots, and TMDCs, compares planar, interdigital, single‐terminal, and coaxial designs,
Wei Huang, Jianbi Le, Rong Chen, Zhixian Lin, Xiongtu Zhou, Yongai Zhang, Chaoxing Wu   +6 more
wiley   +1 more source

Surface‐Engineered ZnO Nanoparticles via Acetone Immersion for Charge‐Balanced High Resolution Full‐Color Organic Light Emitting Diode Displays

Small, EarlyView.
Acetone post‐immersion of OLEDs effectively passivates oxygen vacancies in the ZnO electron transport layer, reducing charge trapping and enhancing electron injection. This improves hole‐blocking at the interface and decreases exciton quenching in the emission layer, resulting in significantly enhanced electrical and optical device performance ...
Changhee Lee, Hyo‐Bin Kim, Ryungyu Lee, Yunjae Shin, Tae‐Hyeon Kim, Jang‐Kun Song, Hojin Lee   +6 more
wiley   +1 more source

Minimizing Defects in Blue‐Emitting ZnSeTe Quantum Dots Using ZnF2 Throughout Core and Shell Growth

Small, EarlyView.
Near‐unity photoluminescence quantum yield (PLQY = 0.98) in blue ZnSeTe quantum dots is achieved by integrating ZnF2 throughout all growth stages. ZnF2 performs two key functions: generating HF in situ for structural defect removal and simultaneously promoting X‐ and Z‐type ligand attachment for effective surface passivation.
Seungmin Han, Ho Seok Heo, Seongjae Kang, Jaeyeong Cho, Seungho Baek, Jae Hyeon Chung, Wonjong Jeong, Namyoung Ahn, Kangtaek Lee   +8 more
wiley   +1 more source

Diazirines Beyond Photoaffinity Labeling: A Comprehensive Overview of Applications in Biological Sciences, Materials Chemistry, and NMR‐Spectroscopy

Angewandte Chemie, Volume 138, Issue 4, 22 January 2026.
Diazirines are three‐membered, nitrogen‐containing heterocycles that decompose under light or heat to generate carbenes. For the past two decades, they have served mainly as minimally invasive tags in photoaffinity labeling (PAL). More recently, their value as versatile carbene precursors has been recognized.
Dominik Schnalzer, Viktor Savic, Clemens Cziegler, Michael Schnürch, Marko D. Mihovilovic   +4 more
wiley   +2 more sources