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Hyungju Ahn
Hyungju Ahn
Pohang Accelerator Laboratory
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Investigation of structure–property relationships in diketopyrrolopyrrole-based polymer semiconductors via side-chain engineering
JY Back, H Yu, I Song, I Kang, H Ahn, TJ Shin, SK Kwon, JH Oh, YH Kim
Chemistry of materials 27 (5), 1732-1739, 2015
2952015
Investigation of Thermally Induced Degradation in CH3NH3PbI3 Perovskite Solar Cells using In-situ Synchrotron Radiation Analysis
NK Kim, YH Min, S Noh, E Cho, G Jeong, M Joo, SW Ahn, JS Lee, S Kim, ...
Scientific reports 7 (1), 4645, 2017
2652017
Directed self-assembly of block copolymers in the extreme: guiding microdomains from the small to the large
K Koo, H Ahn, SW Kim, DY Ryu, TP Russell
Soft Matter 9 (38), 9059-9071, 2013
1932013
High-resolution patterning of colloidal quantum dots via non-destructive, light-driven ligand crosslinking
J Yang, D Hahm, K Kim, S Rhee, M Lee, S Kim, JH Chang, HW Park, ...
Nature communications 11 (1), 2874, 2020
1882020
Fluorination on both D and A units in D–A type conjugated copolymers based on difluorobithiophene and benzothiadiazole for highly efficient polymer solar cells
JW Jo, JW Jung, EH Jung, H Ahn, TJ Shin, WH Jo
Energy & Environmental Science 8 (8), 2427-2434, 2015
1812015
Controlling molecular orientation of naphthalenediimide‐based polymer acceptors for high performance all‐polymer solar cells
J Jung, W Lee, C Lee, H Ahn, BJ Kim
Advanced Energy Materials 6 (15), 1600504, 2016
1652016
Improving performance and stability of flexible planar‐heterojunction perovskite solar cells using polymeric hole‐transport material
JW Jo, MS Seo, M Park, JY Kim, JS Park, IK Han, H Ahn, JW Jung, ...
Advanced Functional Materials 26 (25), 4464-4471, 2016
1592016
Directed assembly of high molecular weight block copolymers: highly ordered line patterns of perpendicularly oriented lamellae with large periods
E Kim, H Ahn, S Park, H Lee, M Lee, S Lee, T Kim, EA Kwak, JH Lee, ...
Acs Nano 7 (3), 1952-1960, 2013
1392013
¥å‐Branched Flexible Side Chain Substituted Diketopyrrolopyrrole‐Containing Polymers Designed for High Hole and Electron Mobilities
AR Han, GK Dutta, J Lee, HR Lee, SM Lee, H Ahn, TJ Shin, JH Oh, ...
Advanced Functional Materials 25 (2), 247-254, 2015
1382015
Nanoporous block copolymer membranes for ultrafiltration: a simple approach to size tunability
H Ahn, S Park, SW Kim, PJ Yoo, DY Ryu, TP Russell
ACS nano 8 (11), 11745-11752, 2014
1122014
Cyclohexylammonium‐Based 2D/3D Perovskite Heterojunction with Funnel‐Like Energy Band Alignment for Efficient Solar Cells (23.91%)
S Jeong, S Seo, H Yang, H Park, S Shin, H Ahn, D Lee, JH Park, NG Park, ...
Advanced Energy Materials 11 (42), 2102236, 2021
1052021
Oriented grains with preferred low‐angle grain boundaries in halide perovskite films by pressure‐induced crystallization
W Kim, MS Jung, S Lee, YJ Choi, JK Kim, SU Chai, W Kim, DG Choi, ...
Advanced Energy Materials 8 (10), 1702369, 2018
1052018
Enhanced Performance of I2‐Free Solid‐State Dye‐Sensitized Solar Cells with Conductive Polymer up to 6.8%
J Kim, JK Koh, B Kim, SH Ahn, H Ahn, DY Ryu, JH Kim, E Kim
Advanced Functional Materials 21 (24), 4633-4639, 2011
962011
High-performance and stable nonfullerene acceptor-based organic solar cells for indoor to outdoor light
S Park, H Ahn, J Kim, JB Park, J Kim, SH Im, HJ Son
ACS Energy Letters 5 (1), 170-179, 2019
892019
Effect of sodium lauryl sulfate on recurrent aphthous stomatitis: a randomized controlled clinical trial
YJ Shim, JH Choi, HJ Ahn, JS Kwon
Oral Diseases 18 (7), 655-660, 2012
872012
Highly efficient I2-free solid-state dye-sensitized solar cells fabricated with polymerized ionic liquid and graft copolymer-directed mesoporous film
WS Chi, JK Koh, SH Ahn, JS Shin, H Ahn, DY Ryu, JH Kim
Electrochemistry Communications 13 (12), 1349-1352, 2011
772011
Acid-assisted ligand exchange enhances coupling in colloidal quantum dot solids
JW Jo, J Choi, FP García de Arquer, A Seifitokaldani, B Sun, Y Kim, H Ahn, ...
Nano letters 18 (7), 4417-4423, 2018
732018
Strain‐engineering induced anisotropic crystallite orientation and maximized carrier mobility for high‐performance microfiber‐based organic bioelectronic devices
Y Kim, H Noh, BD Paulsen, J Kim, IY Jo, HJ Ahn, J Rivnay, MH Yoon
Advanced Materials 33 (10), 2007550, 2021
712021
Conjugated random copolymers consisting of pyridine-and thiophene-capped diketopyrrolopyrrole as Co-Electron accepting units to enhance both J SC and V OC of polymer solar cells
JW Lee, H Ahn, WH Jo
Macromolecules 48 (21), 7836-7842, 2015
692015
Mesoporous monoliths of inverse bicontinuous cubic phases of block copolymer bilayers
C Park, Y La, TH An, HY Jeong, S Kang, SH Joo, H Ahn, TJ Shin, KT Kim
Nature Communications 6 (1), 6392, 2015
682015
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