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Atomic-scale mapper for superlattice photodetectors analysis

Autor: Pavlo Bidenko, Seungyeop Ahn, Ko-ku Kang, Hyun-jin Lee, Young Ho Kim, SangHyeon Kim

Publikováno v: Optics Express. 30:27868

In this work, a new Python-based tool for atomic-scale mapping of high-angle annular dark-field (HAADF) and annular bright-field (ABF) scanning transmission electron microscopy (STEM) images using the Z-contrast method is introduced, aimed to help in

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6370492f4b83c354cb563f57a558c5b4
https://doi.org/10.1364/oe.461032

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Investigation of ICP dry etching of InAs/GaSb type-II superlattice LWIR photodetector

Autor: Young Ho Kim, Tae Hee Lee, Hyun Jin Lee, Seong Min Ryu, Han Jung, Jun Ho Eom, Jong Hwa Choi, Sun Ho Kim, Jong Gi Kim, Ko Ku Kang, Hyun Chul Jung, Young Chul Kim, Ahreum Jang

Publikováno v: Infrared Technology and Applications XLVII.

The deep mesa process for pixel isolation with ICP-RIE (Inductively Coupled Plasma – Reactive Ion Etching) was studied to develop InAs/GaSb type-Ⅱ superlattice (T2SL) LWIR photodetector with nBn structure. To reduce the lateral diffusion current

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b1e49b2581cf2c4cccf373035da93002
https://doi.org/10.1117/12.2588043

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HOT InAs/InAsSb nBn detector development for SWaP detector

Autor: Ahreum Jang, Young Chul Kim, Jun Ho Eom, Han Jung, Hyun Chul Jung, Sun Ho Kim, Young Ho Kim, Jong Gi Kim, Jong Hwa Choi, Jung O. Son, Hyun Jin Lee, Tae Hee Lee, Seong Min Ryu, Ko Ku Kang

Publikováno v: Infrared Technology and Applications XLVII.

High operating temperature(HOT) is the key for low size, weight and power(SWaP) detector development and SWaP detector is the key for modern weapon system such as unmanned aerial vehicle(UAV) and man portable system. The low dark current that determi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::064ac7f18ad82f8d7e0fd985c090d6d9
https://doi.org/10.1117/12.2587857

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Dark current improvement by an in-situ plasma treatment on type-II superlattice LWIR photodetectors

Autor: Jong Gi Kim, Ko Ku Kang, Young Ho Kim, Han Jung, Tae Hee Lee, Hyun Chul Jeong, Jun Ho Eom, Jong Hwa Chi, Seong Min Ryu, Sun Ho Kim, Hyun Jin Lee, Jang Ahreum, Young Chul Kim

Publikováno v: Infrared Technology and Applications XLVII.

We report our recent work on the fabrication of type-II superlattice (T2SL) LWIR nBn photodetectors. It is well known that the dangling bonds or the oxidized element on the etched mesa sidewall increase a dark current. Therefore, the passivation and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::af55f4dfb07a15e8d0733bcf1ce86e18
https://doi.org/10.1117/12.2588041

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Enhanced thermal stability of reduced graphene oxide-Silicon Schottky heterojunction solar cells via nitrogen doping

Autor: Jung-Hwan Hyung, Chang-Hee Hong, Young Jae Park, Min Han, Kang Bok Ko, Ko Ku Kang, Nam Han, Tran Viet Cuong, Beo Deul Ryu

Publikováno v: Materials Science in Semiconductor Processing. 59:45-49

We investigated the thermal stability and electrical properties of nitrogen-doped reduced graphene oxide (NrGO)/n–type Si solar cells. A NrGO layer was used as a transparent electrode as well as an electron-hole separation layer simultaneously. The

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::696da2705c35ac8fca5233d6da12092d
https://doi.org/10.1016/j.mssp.2016.11.021

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