K
Kakaraparthi Kranthiraja
Researcher at Pusan National University
Publications - 38
Citations - 776
Kakaraparthi Kranthiraja is an academic researcher from Pusan National University. The author has contributed to research in topics: Polymer solar cell & Organic solar cell. The author has an hindex of 13, co-authored 30 publications receiving 543 citations. Previous affiliations of Kakaraparthi Kranthiraja include Osaka University.
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Journal ArticleDOI
High-Performance Long-Term-Stable Dopant-Free Perovskite Solar Cells and Additive-Free Organic Solar Cells by Employing Newly Designed Multirole π-Conjugated Polymers
Kakaraparthi Kranthiraja,Kumarasamy Gunasekar,Hyunji Kim,An-Na Cho,Nam-Gyu Park,Seonha Kim,Bumjoon J. Kim,Ryosuke Nishikubo,Akinori Saeki,Myungkwan Song,Sung-Ho Jin +10 more
TL;DR: New multirole π-conjugated polymers (P1-P3) are developed via a rational design approach through theoretical hindsight, further successfully subjecting them into dopant-free PSCs as hole-transporting materials and additive-free OSCsAs photoactive donors, respectively.
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Side-Chain Fluorination: An Effective Approach to Achieving High-Performance All-Polymer Solar Cells with Efficiency Exceeding 7%
Jiho Oh,Kakaraparthi Kranthiraja,Changyeon Lee,Kumarasamy Gunasekar,Seonha Kim,Biwu Ma,Bumjoon J. Kim,Sung-Ho Jin +7 more
TL;DR: Side-chain fluorination of polymers is demonstrated as a highly effective strategy to improve the efficiency of all-polymer solar cells from 2.93% to 7.13% by synergistic improvements in open-circuit voltage, charge generation, and charge transport.
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The Impact of Sequential Fluorination of π-Conjugated Polymers on Charge Generation in All-Polymer Solar Cells
Kakaraparthi Kranthiraja,Seonha Kim,Changyeon Lee,Kumarasamy Gunasekar,Vijaya Gopalan Sree,Bhoj Gautam,Kenan Gundogdu,Sung-Ho Jin,Bumjoon J. Kim +8 more
TL;DR: In this article, a series of polymer donors with different numbers of fluorine atoms on their backbone is presented and the influence of fluorination on charge generation in all-polymer solar cells is investigated.
Journal ArticleDOI
Acridine-based novel hole transporting material for high efficiency perovskite solar cells
An-Na Cho,Nallan Chakravarthi,Kakaraparthi Kranthiraja,Saripally Sudhaker Reddy,Hui-Seon Kim,Sung-Ho Jin,Nam-Gyu Park +6 more
TL;DR: In this paper, an acridine-based hole transporting material (ACR-TPA) without the spirobifluorene motif is synthesized via non complicated steps.