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Akademický článek

Shallow-level defect passivation by 6H perovskite polytype for highly efficient and stable perovskite solar cells

Autor: Hobeom Kim, So-Min Yoo, Bin Ding, Hiroyuki Kanda, Naoyuki Shibayama, Maria A. Syzgantseva, Farzaneh Fadaei Tirani, Pascal Schouwink, Hyung Joong Yun, Byoungchul Son, Yong Ding, Beom-Soo Kim, Young Yun Kim, Junmo Park, Olga A. Syzgantseva, Nam Joong Jeon, Paul J. Dyson, Mohammad K. Nazeeruddin

Publikováno v: Nature Communications, Vol 15, Iss 1, Pp 1-11 (2024)

Abstract The power conversion efficiency of perovskite solar cells continues to increase. However, defects in perovskite materials are detrimental to their carrier dynamics and structural stability, ultimately limiting the photovoltaic characteristic

Externí odkaz: https://doaj.org/article/0bd7f15b49a7446da7b48b712e249662

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Akademický článek

Proton-transfer-induced 3D/2D hybrid perovskites suppress ion migration and reduce luminance overshoot

Publikováno v: Nature Communications, Vol 11, Iss 1, Pp 1-13 (2020)

Ion migration can induce overshoot of luminance in normal 3D perovskite light-emitting diode devices and results in reduced lifetime. Here Kim et al. show that the ion migration and overshoot can be suppressed in 3D/2D hybrid perovskites, leading to

Externí odkaz: https://doaj.org/article/69db12c3c053466787481bbec76baf16

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Akademický článek

Molecular Design and Operational Stability: Toward Stable 3D/2D Perovskite Interlayers

Autor: Sanghyun Paek, Cristina Roldán‐Carmona, Kyung Taek Cho, Marius Franckevičius, Hobeom Kim, Hiroyuke Kanda, Nikita Drigo, Kun‐Han Lin, Mingyuan Pei, Rokas Gegevičius, Hyung Joong Yun, Hoichang Yang, Pascal A. Schouwink, Clémence Corminboeuf, Abdullah M. Asiri, Mohammad Khaja Nazeeruddin

Publikováno v: Advanced Science, Vol 7, Iss 19, Pp n/a-n/a (2020)

Abstract Despite organic/inorganic lead halide perovskite solar cells becoming one of the most promising next‐generation photovoltaic materials, instability under heat and light soaking remains unsolved. In this work, a highly hydrophobic cation, p

Externí odkaz: https://doaj.org/article/be1269574a40467da2e1a2f4727d3eed

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Asymmetrically Substituted 10H,10'H-9,9'-Spirobi[acridine] Derivatives as Hole-Transporting Materials for Perovskite Solar Cells

Autor: Jianxing Xia, Yi Zhang, Marco Cavazzini, Simonetta Orlandi, Bin Ding, Hiroyuki Kanda, Nadja Klipfel, Xiao‐Xin Gao, Qurat Ul Ain, Vygintas Jankauskas, Kasparas Rakstys, Ruiyuan Hu, Zeliang Qiu, Abdullah M. Asiri, Hobeom Kim, Paul J. Dyson, Gianluca Pozzi, Mohammad Khaja Nazeeruddin

Publikováno v: Angewandte Chemie (International ed. in English). 61(48)

Hole-transporting materials (HTMs) based on the 10H, 10'H-9,9'-spirobi [acridine] core (BSA50 and BSA51) were synthesized, and their electronic properties were explored. Experimental and theoretical studies show that the presence of rigid 3,6-dimetho

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::657c240ac1a420b227d74d0393b9f434
https://pubmed.ncbi.nlm.nih.gov/36200274

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Gradient band structure: high performance perovskite solar cells using poly(bisphenol A anhydride-co-1,3-phenylenediamine)

Autor: Naoyuki Shibayama, Albertus Adrian Sutanto, Hiroyuki Kanda, Sanghyun Paek, Hobeom Kim, Mousa Abuhelaiqa, Mohammad Khaja Nazeeruddin, Cristina Roldán Carmona, Nadja Klipfel, Cristina Momblona, Abdullah M. Asiri, Ryuji Kaneko, Aron J. Huckaba

Publikováno v: Journal of Materials Chemistry A. 8:17113-17119

Surface passivation is a critical factor for improving the photovoltaic performance of perovskite solar cells. However, more robust principle investigations are required to build effective passivation strategies enabling high-performance perovskite s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b1b51dc3448b692e26e28b2bfa688e56
https://doi.org/10.1039/d0ta05496h

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Phase-Pure Quasi-2D Perovskite by Protonation of Neutral Amine

Autor: Hobeom Kim, Mohammad Khaja Nazeeruddin, Hiroyuki Kanda, Cansu Igci, Marc Dessimoz, So-Min Yoo

Publikováno v: The journal of physical chemistry letters. 12(46)

Phase control of low-dimensional metal-halide perovskites (LDPs) greatly affects their optoelectronic properties, and phase-pure LDPs are desirable to achieve efficient perovskite optoelectronic devices such as solar cells and light-emitting diodes.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::439db4ee6a6519cbf14f325c06cde858
https://pubmed.ncbi.nlm.nih.gov/34780190

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Ideal conducting polymer anode for perovskite light-emitting diodes by molecular interaction decoupling

Autor: Kwang S. Kim, Tae Hee Han, Jung-Min Heo, Hobeom Kim, Nannan Li, Tae-Woo Lee, Yeongjun Lee, Su Hun Jeong, Min-Ho Park, Hong Kyu Seo, Soyeong Ahn

Publikováno v: Nano Energy. 60:324-331

An ideal conducting polymer anode (CPA) in organic and perovskite light-emitting diodes (LEDs) requires high electrical conductivity κ, high work function WF, and prevention of exciton quenching between an anode and an overlying emitting layer. Howe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9b3b236bca76497066f6886512a903e8
https://doi.org/10.1016/j.nanoen.2019.03.030

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Overcoming defects and instability of metal halide perovskite emitters

Autor: Jung-Min Heo, Joo Sung Kim, Hobeom Kim, Tae-Woo Lee

Publikováno v: Advances in Display Technologies XI.

Metal halide perovskites (MHPs) have emerged as promising candidates for next-generation display because of their advantages on luminescent properties and external quantum efficiency exceeding 20 % in less than 5 years since the first efficient EL op

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::85a0fc8bfae8036efd22332058d91102
https://doi.org/10.1117/12.2578236

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