Andam Deatama Refino

Silicon nanowire anodes for lithium-ion microbatteries

Andam Deatama Refino, Verlag Dr. Hut (München)

p-Type Surface Defects on n-GaN Nanorods

Sumesh Sadhujan, Sherina Harilal, Kefan Zhang, Riam Abu‐Much et autres

Nanowire surfaces are of particular interest, primarily for their potential in optoelectronic applications. Thus, different surface treatments have been performed to develop methods for controlling the surface effect. Here, we successfully shifted the n-type surface states in n-type GaN nanorods to p-type …

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Carbon-coating effect on the performance of photolithographically-structured Si nanowires for lithium-ion microbattery anodes

Andam Deatama Refino, Nursidik Yulianto, Slamet Priyono, Maykel T. E. Manawan et autres

Abstract The applications of three-dimensional Si nanowire anodes in lithium-ion microbatteries have attracted great interest in the realization of high-capacity and integrated energy storage devices for microelectronics. Combining Si nanowires with carbon can improve the anode performance by aiding its mechanical stability …

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Nanomechanical characterisation of vertical nanowires used for energy harvesting

Zhi Li, Petr Klapetek, Uwe Brand, Andam Deatama Refino et autres

Thermo-Convective Solution Growth of Vertically Aligned Zinc Oxide Nanowire Arrays for Piezoelectric Energy Harvesting

Frank Eric Boye Anang, Andam Deatama Refino, Gunilla W. Harm, Defang Li et autres

The search for a synthesis method to create longer ZnO NWAs with high-quality vertical alignment, and the investigation of their electrical properties, have become increasingly important. In this study, a hydrothermal method for growing vertically aligned arrays of ZnO nanowires (NWs) using …

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Deep-reactive ion etching of silicon nanowire arrays at cryogenic temperatures

Jiushuai Xu, Andam Deatama Refino, Alexandra Delvallée, Sebastian Seibert et autres

The pursuit of sculpting materials at increasingly smaller and deeper scales remains a persistent subject in the field of micro- and nanofabrication. Anisotropic deep-reactive ion etching of silicon at cryogenic temperatures (cryo-DRIE) was investigated for fabricating arrays of vertically aligned Si nanowires …

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Advances in 3D silicon-based lithium-ion microbatteries

Andam Deatama Refino, Calvin Eldona, Rahmandhika Firdauzha Hary Hernandha, Egy Adhitama et autres

Abstract Miniaturization of modern microelectronics to accommodate the development of portable and smart devices requires independent energy storage that is compact, lightweight, reliable, and integrable on-chip. Three-dimensional lithium-ion microbatteries are considered as promising candidates to fill the role, owing to their high …

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Impact of exposing lithium metal to monocrystalline vertical silicon nanowires for lithium-ion microbatteries

Andam Deatama Refino, Egy Adhitama, Marlena Maria Bela, Sumesh Sadhujan et autres

Abstract Silicon has attracted considerable attention for use as high-capacity anodes of lithium-ion microbatteries. However, its extreme volume change upon (de-)lithiation still poses a challenge for adoption as it leads to severe active lithium loss that shortens the cycle life. Here, we …

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On the direct correlation between the copper current collector surface area and ‘dead Li’ formation in zero-excess Li metal batteries

Egy Adhitama, Andam Deatama Refino, Tobias Brake, Jan Pleie et autres

The direct correlation between the surface area of the current collector (CC) and the ‘dead Li’ is evaluated in this study.

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Covalently Bonded Ball-Milled Silicon/CNT Nanocomposite as Lithium-Ion Battery Anode Material

Pierre Yosia Edward Koraag, Arief Muhammad Firdaus, Naufal Hanif Hawari, Andam Deatama Refino et autres

The demand for high-capacity lithium-ion batteries (LIBs) is ever-increasing. Thus, research has been focused on developing silicon-based anodes due to their high theoretical capacity and natural abundance. However, silicon-based anodes still suffer from several drawbacks (e.g., a huge volume expansion during lithiation/delithiation …

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Vertically Aligned n-Type Silicon Nanowire Array as a Free-Standing Anode for Lithium-Ion Batteries

Andika Pandu Nugroho, Naufal Hanif Hawari, Bagas Prakoso, Andam Deatama Refino et autres

Due to its high theoretical specific capacity, a silicon anode is one of the candidates for realizing high energy density lithium-ion batteries (LIBs). However, problems related to bulk silicon (e.g., low intrinsic conductivity and massive volume expansion) limit the performance of silicon …

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Versatilely tuned vertical silicon nanowire arrays by cryogenic reactive ion etching as a lithium-ion battery anode

Andam Deatama Refino, Nursidik Yulianto, Iqbal Syamsu, Andika Pandu Nugroho et autres

Abstract Production of high-aspect-ratio silicon (Si) nanowire-based anode for lithium ion batteries is challenging particularly in terms of controlling wire property and geometry to improve the battery performance. This report demonstrates tunable optimization of inductively coupled plasma reactive ion etching (ICP-RIE) at …

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