Journal papers


Randi Azmi, Chang-Lyoul Lee, In Hwan Jung, Sung-Yeon Jang* "Simultaneous Improvement in Efficiency and Stability of Low-temperature Processed Perovskite Solar Cells by Interfacial Control" Adv. Energy Mater. Accepted. 

Randi Azmi, So Youn Nam, Septy Sinaga, Zico Alaia Akbar, Chang-Lyoul Lee, Sung Cheol Yoon, In Hwan Jung,* Sung-Yeon Jang* High-performance dopnat-free conjugated small molecule-based hole-transport materials for perovskite solar cells" Nano Energy Accepted. 

Wisnu Tantyo Hadmojo, Febrian Tri Adhi Wibowo, Du Yeol Ryu, In Hwan Jung,* Sung-Yeon Jang* "Fullerene-Free Organic Solar Cells with an Efficiency of 10.2% and an Energy Loss of 0.59 eV Based on a Thieno[3,4‑c]Pyrrole-4,6-dione-Containing Wide Band Gap Polymer DonorACS Appl. Mater. Interfaces. 2017, 9, 32939-32945. (Sept. 2017)

Randi Azmi, Wisnu Tantyo Hadmojo, Septy Sinaga, Chang-Lyoul Lee, Sung Cheol Yoon, In Hwan Jung,* Sung-Yeon Jang* "High-Efficiency Low-Temperature ZnO based Perovskite Solar Cells Based on Highly Polar, Non-Wetting Self-Assembled Molecular LayersAdv. Energy Mater. 2017, Early view.

Un-Hak Lee, Randi Azmi, Septy Sinaga, Sunbin Hwang, Seung Hun Eom, TaeWook Kim, Sung Cheol Yoon,* Sung-Yeon Jang,* In Hwan Jung* "Diphenylpyridine Amine-Substituted Porphyrins as Hole-Transporting Materials for Perovskite Solar Cells

ChemSusChem 2017, 10, 3780-3787. (Oct. 2017)

Randi Azmi, So Youn Nam, Septy Sinaga, Seung-Hwan Oh, Tae Kyu Ahn, Sung Cheol Yoon, In Hwan Jung,* Sung-Yeon Jang* "Improved performance of colloidal quantum dot solar cells using highelectric-dipole self-assembled layers" Nano Energy 2017, 39 355-362. (Sept. 2017)

Randi Azmi, Septy Sinaga, Havid Aqoma, Gapsoek Seo, Tae-Kyu Ahn, Minsuk Park, Sang-Yong Ju, Jin-Won Lee, Tae‐Wook Kim, Seung-Hwan Oh, Sung-Yeon Jang* "Highly Efficient Air-Stable Colloidal Quantum Dot Solar Cells by Improved Surface Trap Passivation" Nano Energy 2017, 39 86-94. (Sept. 2017)

Wisnu Tantyo Hadmojo, Dajeong Yim, Havid Aqoma, Du Yeol Ryu, Tae Joo Shin, Hyun Woo Kim, Eojin Hwang, Woo-Dong Jang,* In Hwan Jung,* Sung-Yeon Jang* "Artificial Light-Harvesting n-type Porphyrin for Panchromatic Organic Photovoltaic Devices"  Chem. Sci. 2017, 8, 5095-5100.

Havid Aqoma, Muhibullah Al Mubarok, Wisnu Tantyo Hadmojo, Eun-Hye Lee, Tae-Wook Kim, Tae Kyu Ahn, Seung-Hwan Oh, Sung-Yeon Jang* "High-Efficiency Photovoltaic Devices using Trap Controlled Quantum Dot Ink Prepared via Phase-Tansfer Exchange" Adv. Mater. 2017, 29, 1605756. 

Havid Aqoma, Randi Azmi, Seung-Hwan Oh, Sung-Yeon Jang* "Solution-processed colloidal quantum dot/organic hybrid tandem photovoltaic devices with 8.3% efficiency" Nano Energy 2017, 31, 403-409.



Wisnu Tantyo Hadmojo, So Youn Nam, Tae Joo Shin, Sung Cheol Yoon, Sung-Yeon Jang,* In Hwan Jung* "Geometrically Controlled Organic Small Molecule Acceptors for Efficient Fullerene-free Organic Photovoltaic Devices" J. Mater. Chem. A. 2016, 4, 12308-12318.

Randi Azmi, Seung-Hwan Oh, Sung-Yeon Jang* "High Efficiency Colloidal Quantum Dot Photovoltaic Devices Using Chemically Modified Heterojunctions" ACS Energy Lett. 2016, 1, 100-106.

Hye-Yun Park, Ji Hye Oh, Sung Pyo Hong, Young Rag Do,* Sung-Yeon Jang* "Optical Properties Enhancement of Electrosprayed Quantum Dot/Polymer Nanohybrid Films by a Solvent Vapor Treatment" Sci. Adv. Mater. 2016, 8, 224-230.

Hyo-Jin Yeon, Zico Alaia Akbar, Jae-Seon Lee, Jae-Ryang Hahn, Han-Ik Joh, Sung-Yeon Jang,* Sungho Lee,* "Fabr ication of Porous Car bon Films and Their Applications for E lectrocatalytic Electrodes" Sci. Adv. Mater. 2016, 8, 57–63.

Randi Azmi, Havid Aqoma, Wisnu Tantyo Hadmojo, Jin-Mun Yun, Soyeon Yoon, Kyungkon Kim, Young Rag Do, Seung-Hwan Oh,* and Sung-Yeon Jang* "Low-Temperature-Processed 9% Colloidal Quantum Dot Photovoltaic Devices through Interfacial Management of p–n Heterojunction" Adv. Energy Mater. 2016, 1502146.

Dasom Park, Havid Aqoma, Ilhwan Ryu, Sanggyu Yim,* Sung-Yeon Jang*  “PbS/ZnO Heterojunction Colloidal Quantum Dot Photovoltaic Devices by a Room Temperature Air-spray Method” IEEE JSTQE 2016, 22(1), 4100506.




Havid Aqoma, Nilesh Barange, Ilhwan Ryu, Sanggyu Yim, Young Rag  Do, Shinuk Cho, Doo-Hyun Ko,* Sung-Yeon Jang* Simultaneous Improvement of Charge Generation and Extraction in Colloidal Quantum Dot Photovoltaics Through Optical Management” Adv. Funct. Mater. 2015, 25, 6241-6249.

Zico Alaia Akbar, Ji Hye Oh, Wisnu Tantyo Hadmojo, Su Ji Yang, Young Rag Do,* Sung-Yeon Jang* Improved performance of dye-sensitized solar cells using dual-function TiO2 nanowire photoelectrode” Opt. Express 2015, 23, A1280-A1287.

Beomsu Shin-il Kim, Young-jae Jin, Wang-Eun Lee, Doo Jin Byun, Ri Yu, Sang-Sag-Joon Park, Hyojin Kim, Kyu-Ho Song, Sung-Yeon Jang*, and Giseop Kwak "Highly Fluorescent, Photostable, Conjugated Polymer Dots with Amorphous, Glassy-State, Coarsened Structure for Bioimaging" Adv. Opt. Mater. 2015, 3(1), 78-86.

Zico Alaia Akbar, Jae-Seon Lee, Han-Ik Joh, Sungho Lee,* Sung-Yeon Jang*  “High-Efficiency FTO-Free Counter Electrodes for Dye-Sensitized Solar Cells Based on Low-Pt-Doped Carbon Nanosheets” J. Phys. Chem. C 2015, 119, 2314-2321.




Daesub Hwang, Jun-Su Jin, Horim Lee, Hae-Jin Kim, Heejae Chung, Dong Young Kim, Sung-Yeon Jang*, Dongho Kim* “Hierarchically Structured Zn2SnO4 Nanobeads for High-Efficiency Dye-Sensitized Solar Cells” Sci. Rep. 2014, 4, 7353.

Sung Pyo Hong, Hye-Yun Park, Ji Hye Oh, Heesun Yang, Sung-Yeon Jang,* and Young Rag Do* “Fabrication of  wafer-scale free-standing quantum dot / polymer nanohybrid down-conversion films for white -light-emitting diodes using an electrospray method” J. Mater. Chem. C 2014, 2, 10439-10445.

Young-Jae Jin, Beomsu Shin-Il kim, Wang-Eun Lee, Chang-Lyoul Lee, Hyojin Kim,  Kyu-Ho Song, Sung-Yeon Jang* and Giseop Kwak "Phase-change hybrids for thermo-reponsive sensors and actuators" NPG Asia Mater. 2014, 6, e137

Hye-Yun Park, Dongchan Lim, Seung-Hwan Oh, Phil-Hyun Kang, Giseop Kwak,* Sung-Yeon Jang* “Inverted-Structure Polymer Solar Cells Fabricated by Sequential Spraying of Electron-Transport and Photoactive Layers” Org. Electron. 2014, 15, 2337-2345.

Zico, Alaia Akbar, Jae-Seon Lee, Jinhyeon Kang, Han-Ik Joh, Sungho Lee*, Sung-Yeon Jang* “FTO-free Counter Electrodes for Dye-sensitized Solar Cells Using Carbon Nanosheets Synthesised from a Polymeric Carbon Source” Phys. Chem. Chem. Phys. 2014, 16 (33), 17595 - 17602

Hye-Yun Park, Il-Whan Ryu, Jinhyun Kim, Sohee Jeong, Sanggyu Yim,* Sung-Yeon Jang* “PbS Quantum Dot Solar Cells Integrated with Sol-Gel-Derived ZnO as  an n-Type Charge-Selective Layer” J. Phys. Chem. C 2014, 118, 17374-17382.

Jung Min Cho, Sun-Woo Kwak, Havid Aqoma, Joon Woo Kim, Won Suk Shin, Sang-Jin Moon, Sung-Yeon Jang*, Jeongdai Jo* “Effects of Ultraviolet-Ozone Treatment on Organic-stabilized ZnO nanoparticle-based Electron Transporting Layers in Inverted Polymer Solar Cells Org. Electron. 2014, 15, 1942-1950.

Jinhyun Kim, Il-Soo Heo, Dasom Park, Sang Jung Ahn, Sung-Yeon Jang,* Sanggyu Yim* Efficient Solvent-assisted External Treatment for Planar Heterojunction Small-molecule Organic Solar Cells” J. Mater. Chem. A 2014, 2(26), 10250 - 10256.

Graphical abstract: Efficient solvent-assisted external treatment for planar heterojunction small-molecule organic solar cells



Daesub Hwang, Dong Young Kim, Seong Mu Jo, Vanessa Armel, Douglas R. MacFarlane, Dongho Kim*,Sung–Yeon Jang* "Highly Efficient Plastic Crystal Ionic Conductors for Solid-state Dye-sensitized Solar Cells" Sci. Rep. 2013,3, 3520.



HoSeok Park, Bong Gill Choi, Won Hi Hong, Sung–Yeon Jang* "Controlled assembly of graphene oxide nanosheetswithin one-dimensional polymer nanostructure" J. Coll. Interf. Sci. 2013, 406, 24-29


                               Full-size image (17 K)


Hye-Yun Park, Dongchan Lim, Kwang-Dae Kim, Sung-Yeon Jang* "Performance optimization of low-temperatureannealed solution-processable ZnO buff er layers for inverted polymer solar cells" J. Mater. Chem. A, 2013, 1, 6327-6334.

                                                         Graphical abstract: Performance optimization of low-temperature-annealed solution-processable ZnO buffer layers for inverted polymer solar cells

Young-Gon Kim, Zico Alaia Akbar, Dong Young Kim, Seong Mu Jo, and Sung-Yeon Jang* "Aqueous Dispersible Graphene/Pt Nanohybrids by Green Chemistry: Application as Cathodes for Dye-Sensitized Solar Cells" ACS Appl. Mater. & Interfaces 2013, 5, 2053-2061.

Abstract Image


Seung-Wook Lea, Hwa-Young Lee, Sung-Yeon Jang, Seongmu Jo, Hun-Su Lee, Woong Kim, Won-Ho Choe, Sungho Lee"Efficient Preparation of Carbon Fibers using Plasma Assisted Stabilization" Carbon, 2013, 55,361-365


Full-size image (20 K)


Daesub Hwang, Dong Young Kim, Sung-Yeon Jang,* Dongho Kim* "Superior Photoelectrodes for Solid-state Dye-sensitized Solar Cells Using Amphiphilic TiO2" J. Mater. Chem. A, 2013, 1 (4), 1228 - 1238.




                                        Graphical abstract: Superior photoelectrodes for solid-state dye-sensitized solar cells using amphiphilic TiO2



Seung-Hoon Choi, Daesub Hwang, Dong-Young Kim, Yann Kervella, Pascale Maldivi, Sung-Yeon Jang,* Renaud Demadrille*, Il-Doo Kim* "Amorphous Zinc Stannate (Zn2SnO4) Nanofibers Networks as Photoelectrodes for Organic Dye-Sensitized Solar Cells" Adv. Funct. Mater. 2013, 23, 3146-3155. (Selected as the Front Cover)


Thumbnail image of graphical abstract


Link to full-size graphical abstract


Hye-Yun Park, Jun-Su Jin, Sanggyu Yim, Seung-Hwan Oh, Phil-Hyun Kang, Si-Kyung Choi* and Sung-Yeon Jang* "Effects of surface characteristics of dielectric layers on polymer thin-film transistors obtained by spray methods" Phys. Chem. Chem. Phys. 2013, 15(11), 3718-3724.


Graphical abstract: Effects of surface characteristics of dielectric layers on polymer thin-film transistors obtained by spray methods





Aaron Tan, Janakiraman Balachandran, Barry D. Dunietz, Sung-Yeon Jang, Vikram Gavini, Pramod Reddy* "Length dependence of frontier orbital alignment in aromatic molecular junctions " Appl. Phys. Lett. 2012, 101, 243107.





Ho Seok Park, Bong Gill Choi, Won Hi Hong, and Sung-Yeon Jang* "Interfacial Interactions of Single-Walled Carbon Nanotub/Conjugated Block Copolymer Hybrids for Flexible Transparent Conductive Films" J. Phys. Chem. C, 2012, 116(14), 7962-7967.

Hye-Yun Park, Hoichang Yang, Si-Kyung Choi, Sung-Yeon Jang* "Efficient Solvent-Assisted Post-Treatment for Molecular Rearrangement of Sprayed Polymer Field-Effect Transistors" ACS Applied Materials & Interfaces 2012, 4(1), 214-221.


TOC figure

Sung-Yeon Jang,* Young-Gon Kim, Dong Young Kim, Hong-Gon Kim, and Seong Mu Jo "Electrodynamically Sprayed Thin Films
of Aqueous Dispersible Graphene Nanosheets: Highly Efficient Cathodes for Dye-Sensitized Solar Cells" ACS Applied. Materials &.  Interfaces 2012, 4, 3500-3507. 


TOC image 



Youngjoon Chio, Yuhee Kim, Sung-Geun Park, Bong June Sung, Sung-Yeon Jang* Woochul Kim*"Effect of the Carbon Nanotuve Type on the Thermoelectric Properties of CNT/Nafion Nanocomposites" Org. Electron. 2011,12, 2120-2125

Daesub Hwang, Horim Lee,Sung-Yeon Jang, Seong Mu Jo, Dongo Kim, Yongsok Seo, Dong Young Kim*"Electrospray Perparation of Hierarchically-structured Mesoporous Ti02 Spherss for Use in Highly Effcient Dye-Sensitized Solar Cells" ACS Appl. Mater. Interfaces, 2011, 3(7), 2719-2725

Aaron Tan, Janakiraman Balachandran, Seid Sadat, Vikram Gavini, Barry D. DunietzSung-Yeon Jang,* Pramod Reddy* "Effect of Length and Contact Chemistry on the Electronic Structure and Thermoelectric Properties of Molecular Junction" J. Am. Chem. Soc. 2011,133, 8838-8841

Young Ki Hong,Dong Hyuk Park, Seong Gi Jo, Min Ho Koo, Dae-Chul Kim, Jeongyong Kim, Joon-Sung Kim, Sung-Yeon Jang,* Jinsoo Joo*"Fine Characteristics Tailoring of Organic and Inorganic Nanowires Using Focused Electron-Beam Irradiation" Angew. Chem. Int. Ed. 2011, 50, 3734-3738

Daesub Hwang, Seong Mu Jo,Dong Young Kim,Vanessa Armel, Douglas R. MacFalane, Sung-Yeon Jang* "High Efficiency Solid-state Dye-Sensitzed Solar Cells Using Hierarchically Structiured TiO2 Nanofibers" ACS Appl. Mater. Interfaces, 2011, 3, 1521-1527

Hye-Yun Park, Kyungkon Kim, Dong Young Kim, Si-Kyung Choi, Seong Mu Jo, Sung-Yeon Jang* "Facile external treatment for efficient nanoscale morphology control of polymer solar cells using a gas-assisted spray method" J. Mater. Chem. 2011, 21, 4457-4464.

Seung-Wook Lee, Hwa-Yong Lee, Sung-yeon Jang, Seong-Mi Jo, Hun-Soo Lee and Sungho Lee* "Tensile Properties and Morphology of Carbon Fibers Stabilized by Plasma Treatment" Carbon Lett. 2011, 12(1), 16-20.

HyunSeok Kim, Junhyun Cho, Sung-Yeon Jang, Yong-Won Song* " Defornation-immunized optical deposition of graphene for ultafast pulsed lasers" Appl. Phys. Lett. 2011, 98(2), 02144.



Joon-Sung Kim, Won-Suk Chung, Kyungkon Kim, Dong Young Kim, Ki-Jung Paeng, Seong Mu Jo Sung-Yeon Jang* "Performance Optimization of Polymer Solar Cell Usin Electro-sprayed Photoactive Layers" Adv. Funct. Master. 2010, 20, 3538-3546.(Selected as a Cover Paper)

Jinkyu Han, Hyumju Kim, Dong Young Kim, Seong Mu Jo. Sung-Yeong Jang* "Water-Soluble Polyelectrolyte-Grafted Multiwalled Carbon Nanotube Thin Fillms for Efficient Counter Electrode of Dye-Sensitized Solar Cell" ACS Nano, 2010, 4, 3503-3509

Bong Gill Choi, HoSeok Park, Tae Jung Park, Joon-Sung Kim, Sung-Yeon Jang, Nam Su Heo, Sang Yup Lee, Jing Kong, Won Hi Hong* " Soultion Chemistry of Self-Assembled Graphenenanohybrids for High-Performance Flexible Biosensors" ACS Nano, 20104, 2910-2918

Seung-Hoon Choi, Tse0-Seon Hyun, Hyejin Lee, Sung-Yeon Jang, Seong-Geun Oh, ll-Doo Kim* "Facelle Synthesis of Highly Cinductive Platinum Nanofiber Mast as Conducting Core for High Rate Redox Supercapacitor" Electrochem. Solid-State Lett. 2010,13, A65-A6

Arvind Kumar, Michael A. Invernale, Sung-Yeon Jang, Gregory A. Sotzing* "Poly(terthiophene) from Copolymer Precursors via Solid-state Oxidative Conversion" J. Polym. Sic.  Part  A. 2010, 48, 756  

Yong-Won Song*, Sung-Yeon Jang*, Won-Suk Han, Mi-Kyung Bae "Graphene made-lockers for fiber lasers functioned with evanescent field interaction" Appl. Phys. Lett. 2010, 96, 051122.

Hosek Park, Joon-Sung Kim, Bong GILL Choi, Seong Mu Jo, Dong Young Kim, Won Hi Hong, Sung-Yeong Jnag* "Sonochemical hybridization of carbon nanotubes with gold nanoparticles for the production of fiexible transparent coductiong films" Carbon, 201048, 1325-1330.



Sung-Yeon Jang, Seoung Mu Jo, Seong-Yeop Kwak, Dong Young Kim* "Charge Transport Charcteristics of High Efficiency Dye-Sensitized Solar Cells Based on Electrospun TiO2 NanorodPhotoelectrodes" J. Phys. Chem. C, 2009, 113, 2145-21457

Hyejin Lee, Seoung-Hoon Choi, Seong Mu Jo, Dong Young Kim, Soonjong Kwak, Min Whan Cha, Il-DO Kim, Sung-Yeon Jang* "Fabrication and electrical properties of platinom nanofibres by electrostatic spinning" J. Phys, D: Appl. Phys, 2009, 42, 125409

"Baheti, Kanhayalal; Malen, Jonathan A; Doak, Peter; Readdy, Pramod, Jang Sung-Yeon, T. Don; Majumdar, Arun; Segalman, Rachel A. "Probing the Chemistry of Molecular Haterojunctions Using Themoelectricity" Nano Lett. 2008, 8(2),715-719

Kumar,Arvind;Jang,Sung-Yeon;Padilla,Javier;Otero, Toribio, F.;Sotzing Gregory,A."Photopatterne Electrochromic Conjugated Polymer Films via Precursor Approach"Polymer,2008,49,3686-3692

Sung-Yeon Jang, Pramod Reddy, Rachel A. Segalman, Arun Majumdar* "Thermo-electricity in Molecular Junctions" 2007, 315,1568-1571

Jang,Sung-Yeon;Reddy,Pramod;Segalman Rachel;Majumdar,Arun"Stochastic Effect in Single Organic Molecule Conductance Measurement" Nano Lett.2006.6(10),2362-2367.

Sung-Yeon Jang, Pramod Reddy, Rachel A. Segalman, Arun Majumdar* "Stochastic Effect in Single Organic Molecule Conductance Measurement" Nano Lett, 2006, 39(13), 4469-4479

D.Olsen, Sung-Yeon Jang, Jan, M.Luning, Rachel A.Segalman* "Higher Order Liquid Crystalline Structre in Low Polydispersity DEH-PPV" Macromoelcules, 2006, 39(13), 4469-4479

Sung-Yeon Jang, Venkataramanan Seshardri, Myung-Seob Khil, Arvind Kumar, Marquez, Patrick, T.Mather, Gregory, A. Sotzing* "Electrochromic Conductive Polymer Nanofibers by Electrostaic Spinning" Adv. Mater, 2005, 17(18) 2177-2180

Sung-Yeon Jang, Manuel Marquez, Gregory, A. Sotzing* "Writing of Conducting Polymers using Nanoelectrochemistry" Synth. Met, 2005, 152, 345-348

Sung-Yeon Jang, Manuel Marquez, Gregory, A. Sotzing* "Repid Direct Nano-writing of Conductive Polymer via Electrochemical Oxidative NanoLithography" J. Am. Chem. Soc, 2004, 126(31), 9476-9477

Sung-Yeon Jang, Gregory, A. Sotzing* Manuel Marquez " PolyI(thiophene)s Prepared via Electrochemical Solid-state OXidative Crosslinking(SOC), A Comparative Study" Macromolecules, 2004, 37(12)4351-4359.

Sung-Yeon Jang, Gregory, A. Sotzing* Manuel Marquez " Oxidative Solid-state Crosslinking of Polymer Precursors to Pattern Intrinsically Conducting Polymers" ACS symposium series, 2004, 874, 44-53.

Sung-Yeon Jang, Gregory, A. Sotzing* Manuel Marquez "Intrinsically Conducting Polymer Networks of Poly(thiophene)via Solid-State Oxidative Criss-Linking of a Poly(norbornylene) Containing Terthiophene Moleties." 2002, 35(19) 7293-7300.

Sung-Yeon Jang, Daejin Kim. Kwanho Seo* "Physical Properties of Granet-filled Polyurethanne Foam Coposite" Appl. Polym. Sci. 2001. 79(7), 1336-1343.





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Energy & Nanoelectronic Materials Group, Department of Chemistry, Kookmin University,
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