Search Results - "Kumar, Mallem"

Quantum‐Rod On‐Chip LEDs for Display Backlights with Efficacy of 149 lm W−1: A Step toward 200 lm W−1 by Kang, Chengbin, Prodanov, Maksym F., Gao, Yiyang, Mallem, Kumar, Yuan, Zhengnan, Vashchenko, Valerii V., Srivastava, Abhishek K.

“…Efficient white light‐emitting diodes (LEDs) with an efficacy of 200 lm W−1 are much desirable for lighting and displays. The phosphor‐based LEDs in use today…”
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Robust, Narrow‐Band Nanorods LEDs with Luminous Efficacy > 200 lm/W: Next‐Generation of Efficient Solid‐State Lighting by Kang, Chengbin, Prodanov, Maksym F., Song, Jianxin, Mallem, Kumar, Liao, Zebing, Vashchenko, Valerii V., Srivastava, Abhishek K.

“…Energy‐efficient white light‐emitting diodes (LEDs) are in high demand across the society. Despite the significant advancements in the modern lighting industry…”
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Robust, Narrow‐Band Nanorods LEDs with Luminous Efficacy > 200 lm/W: Next‐Generation of Efficient Solid‐State Lighting (Small 45/2024) by Kang, Chengbin, Prodanov, Maksym F., Song, Jianxin, Mallem, Kumar, Liao, Zebing, Vashchenko, Valerii V., Srivastava, Abhishek K.

“…Solid‐State Lighting In response to the need for efficient, color‐rich light‐emitting diodes (LEDs), in article number 2311671, Abhishek K. Srivastava and…”
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Ultralow Roll‐Off Quantum Dot Light‐Emitting Diodes Using Engineered Carrier Injection Layer by Liao, Zebing, Mallem, Kumar, Prodanov, Maksym F., Kang, Chengbin, Gao, Yiyang, Song, Jianxin, Vashchenko, Valerii V., Srivastava, Abhishek K.

“…Quantum dot (QD) light‐emitting diodes (QLEDs) have attracted extensive attention due to their high color purity, solution‐processability, and high brightness…”
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12‐3: A Liquid Crystal Polymer Matrix‐Based Solution for Linear Polarization Color Conversion‐Photoalignment Lithography Pixelated Color Filters by SONG, Jianxin, PRODANOV, Maksym, GAO, Yiyang, KANG, Chengbin, MALLEM, Kumar, LIAO, Zebing, BHADRA, Debjyoti, VASHCHENKO, Valerii, SRIVASTAVA, Abhishek

“…This study reports a method to fabricate linearly polar ized color filters (CFs) using quantum rods (QRs) as emitters. Direct photolithography is employed with…”
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28‐4: Positive Aging Resulted in Highly Efficient Blue Quantum Rod Light Emitting Diodes by Mallem, Kumar, Liao, Zebing, Prodanov, Maksym F., Song, Jianxin, Bhadra, Debjyoti, Gavara, Roja Ramani, Srivastava, Abhishek K.

“…The synthesis of blue quantum rods (QRs) is challenging due to fast kinetics and a significant shift in color during the synthesis of w‐CdSe seeds. Herein, we…”
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44‐3: High Efficiency and Brightness Quantum Rods Light Emitting Diode by Liao, Zebing, Prodanov, Maksym F., Mallem, Kumar, Kang, Chengbin, Song, Jianxin, Bhadra, Debjyoti, Srivastava, Abhishek K.

“…Despite substantial efforts, the maximum external quantum efficiency (EQE) of red, green, and blue quantum dots remains close to 25%, limited by the…”
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44‐2: Towards 10‐Watt Radiant Flux——Applications and Challenges of Photoluminescent Quantum Rods in High‐Power LEDs by SONG, Jianxin, PRODANOV, Maksym, BHADRA, Debjyoti, GRAVARA, Roja Ramani, LIAO, Zebing, MALLEM, Kumar, VASHCHENKO, Valerii, SRIVASTAVA, Abhishek

“…This report examines the thermal stability of luminescent quantum rods under high optical flux LED conditions, analyzing degradation mechanisms and key…”
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P‐12.2: Semiconductor Stable Quantum Rods for Liquid Crystal Display mini‐LED Backlight by Kang, Chengbin, Prodanov, Maksym F., Song, Jianxin, Gao, Yiyang, Mallem, Kumar, Vashchenko, Valerii V., Srivastava, Abhishek K.

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65‐5: Improved Brightness and Efficiency of Green Quantum‐Rod‐Based Light‐Emitting Diodes by Mallem, Kumar, Prodanov, Maksym F., Chen, Dezhang, Marus, Mikita, Vashchenko, Halpert, Jonathan E., Srivastava, Abhishek K.

“…Semiconductor colloidal quantum rods (QRs) are evolving as potential candidates for future lighting and display applications due to numerous advantages. QRs…”
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P‐111: Red, Green, and Blue Quantum Rod Based Electroluminescent Light‐Emitting Diodes by Mallem, Kumar, Prodanov, Maksym F., Gupta, Swadesh K., Tam, Bryan Siu Ting, Vashchenko, Valerii V., Srivastava, Abhishek K.

“…Quantum dot light emitting diodes (QLEDs) emerges as a potential display technology due to its ultra‐saturated colors, small turn on voltage (Von) and high…”
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Versatile Hole Carrier Selective MoOx Contact for High Efficiency Silicon Heterojunction Solar Cells: A Review by Hussain, Shahzada Qamar, Mallem, Kumar, Khan, Muhammad Ali, Khokhar, Muhammad Quddamah, Lee, Youngseok, Park, Jinjoo, Lee, Kyung Su, Kim, Youngkuk, Cho, Eun Chel, Cho, Young Hyun, Yi, Junsin

“…Excellent surface passivation and carrier selective contact formed by the metal oxide induced junctions is required for future high efficiency silicon solar…”
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Control of size and distribution of silicon quantum dots in silicon dielectrics for solar cell application: A review by Dutta, Subhajit, Chatterjee, Somenath, Mallem, Kumar, Cho, Young Hyun, Yi, Junsin

“…Nano-scale engineering for optoelectronic properties of silicon has shown its suitability in the modern era of Photovoltaic. The major focus is on Silicon…”
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MoOx work function, interface structure, and thermal stability analysis of ITO/MoOx/a-Si(i) stacks for hole-selective silicon heterojunction solar cells by Kumar, Mallem, Cho, Eun-Chel, Prodanov, Maksym F., Kang, Chengbin, Srivastava, Abhishek K., Yi, Junsin

“…[Display omitted] •MoOx work function, thermal stability of MoOx SHJ solar cell studied.•O2 treated MoOx film shown minimized oxygen deficiency and high work…”
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Perovskite Light-Emitting Diodes with Quantum Wires and Nanorods by Zhang, Qianpeng, Zhang, Daquan, Liao, Zebing, Cao, Yang Bryan, Kumar, Mallem, Poddar, Swapnadeep, Han, Junchao, Hu, Ying, Lv, Hualiang, Mo, Xiaoliang, Srivastava, Abhishek Kumar, Fan, Zhiyong

“…Perovskite materials, celebrated for their exceptional optoelectronic properties, have seen extensive application in the field of light-emitting diodes (LEDs),…”
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83‐3: Electron Transportation Engineering for Record High External Quantum Efficiency of 16.8% for Quantum Rod Light‐Emitting Diodes by Mallem, Kumar, Prodanov, Maksym F., Liao, Zebing, Kang, Chengbin, Vashchenko, Valeri V., Srivastava, Abhishek K.

“…The semiconductor quantum rods (QRs) offer unique benefits that differ from the spherical QDs, such as linearly polarized light and higher light outcoupling…”
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Molybdenum oxide: A superior hole extraction layer for replacing p-type hydrogenated amorphous silicon with high efficiency heterojunction Si solar cells by Mallem, Kumar, Kim, Yong Jun, Hussain, Shahzada Qamar, Dutta, Subhajit, Le, Anh Huy Tuan, Ju, Minkyu, Park, Jinjoo, Cho, Young Hyun, Kim, Youngkuk, Cho, Eun-Chel, Yi, Junsin

“…[Display omitted] •MoOx layer was used to fabricate high efficiency of Si heterojunction solar cells.•MoOx layers exhibited high transmittance, bandgap and low…”
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Passivated emitter and rear contact (PERC) approach for small-scale laboratory industrial applications by Ju, Minkyu, Mallem, Kumar, Chowdhury, Sanchari, Cho, Young Hyun, Cho, Eun-Chel, Yi, Junsin

“…•Simplified PERC cell fabricated without Al2O3/SiNX layers and archived 20% efficiency.•Rear stack (Al2O3/SiNX) and front SiNx ARC layer were changed with one…”
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Using the light scattering properties of multi-textured AZO films on inverted hemisphere textured glass surface morphologies to improve the efficiency of silicon thin film solar cells by Hussain, Shahzada Qamar, Le, Anh Huy Tuan, Mallem, Kumar, Park, Hyeongsik, Ju, Minkyu, Kim, Yongjun, Cho, Jaehyun, Park, Jinjoo, Kim, Youngkuk, Yi, Junsin

“…[Display omitted] •Micro-featured IHT glass surfaces with high transmittance, haze ratio were prepared.•Multi-textured AZO films were deposited on IHT glass…”
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Influence of small size pyramid texturing on contact shading loss and performance analysis of Ag-screen printed mono crystalline silicon solar cells by Ju, Minkyu, Mallem, Kumar, Dutta, Subhajit, Balaji, Nagarajan, Oh, Donghyun, Cho, Eun-Chel, Cho, Young Hyun, Kim, Youngkuk, Yi, Junsin

“…Front side textured random pyramids are widely utilized in major industries for the performance enhancement of crystalline silicon (c-Si) solar cells. Random…”
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