Works by Gunawan, Oki

Results: 25

Electrodeposited Cu2ZnSnSe4 thin film solar cell with 7% power conversion efficiency.
Published in:
Progress in Photovoltaics, 2014, v. 22, n. 1, p. 58, doi. 10.1002/pip.2332
By:
- Guo, Lian;
- Zhu, Yu;
- Gunawan, Oki;
- Gokmen, Tayfun;
- Deline, Vaughn R.;
- Ahmed, Shafaat;
- Romankiw, Lubomyr T.;
- Deligianni, Hariklia
Publication type:
Article
Solution-processed Cu(In,Ga)(S,Se)2 absorber yielding a 15.2% efficient solar cell.
Published in:
Progress in Photovoltaics, 2013, v. 21, n. 1, p. 82, doi. 10.1002/pip.1253
By:
- Todorov, Teodor K.;
- Gunawan, Oki;
- Gokmen, Tayfun;
- Mitzi, David B.
Publication type:
Article
Thin film solar cell with 8.4% power conversion efficiency using an earth-abundant Cu2ZnSnS4 absorber.
Published in:
Progress in Photovoltaics, 2013, v. 21, n. 1, p. 72, doi. 10.1002/pip.1174
By:
- Shin, Byungha;
- Gunawan, Oki;
- Zhu, Yu;
- Bojarczuk, Nestor A.;
- Chey, S. Jay;
- Guha, Supratik
Publication type:
Article
Device characteristics of a 10.1% hydrazine-processed Cu2ZnSn(Se,S)4 solar cell.
Published in:
Progress in Photovoltaics, 2012, v. 20, n. 1, p. 6, doi. 10.1002/pip.1160
By:
- Barkhouse, D. Aaron R.;
- Gunawan, Oki;
- Gokmen, Tayfun;
- Todorov, Teodor K.;
- Mitzi, David B.
Publication type:
Article
Solar Cells: High Efficiency Cu2ZnSn(S,Se)4 Solar Cells by Applying a Double In2S3/CdS Emitter (Adv. Mater. 44/2014).
Published in:
Advanced Materials, 2014, v. 26, n. 44, p. 7426, doi. 10.1002/adma.201470303
By:
- Kim, Jeehwan;
- Hiroi, Homare;
- Todorov, Teodor K.;
- Gunawan, Oki;
- Kuwahara, Masaru;
- Gokmen, Tayfun;
- Nair, Dhruv;
- Hopstaken, Marinus;
- Shin, Byungha;
- Lee, Yun Seog;
- Wang, Wei;
- Sugimoto, Hiroki;
- Mitzi, David B.
Publication type:
Article
High Efficiency Cu2ZnSn(S,Se)4 Solar Cells by Applying a Double In2S3/CdS Emitter.
Published in:
Advanced Materials, 2014, v. 26, n. 44, p. 7427, doi. 10.1002/adma.201402373
By:
- Kim, Jeehwan;
- Hiroi, Homare;
- Todorov, Teodor K.;
- Gunawan, Oki;
- Kuwahara, Masaru;
- Gokmen, Tayfun;
- Nair, Dhruv;
- Hopstaken, Marinus;
- Shin, Byungha;
- Lee, Yun Seog;
- Wang, Wei;
- Sugimoto, Hiroki;
- Mitzi, David B.
Publication type:
Article
Comparing the Effect of Mn Substitution in Sulfide and Sulfoselenide‐Based Kesterite Solar Cells.
Published in:
Solar RRL, 2020, v. 4, n. 4, p. 1, doi. 10.1002/solr.201900521
By:
- Lie, Stener;
- Li, Wenjie;
- Leow, Shin Woei;
- Bishop, Douglas M.;
- Gunawan, Oki;
- Helena Wong, Lydia
Publication type:
Article
Ultrathin high band gap solar cells with improved efficiencies from the world's oldest photovoltaic material.
Published in:
Nature Communications, 2017, v. 8, n. 1, p. 1, doi. 10.1038/s41467-017-00582-9
By:
- Todorov, Teodor K.;
- Singh, Saurabh;
- Bishop, Douglas M.;
- Gunawan, Oki;
- Yun Seog Lee;
- Gershon, Talia S.;
- Brew, Kevin W.;
- Antunez, Priscilla D.;
- Haight, Richard
Publication type:
Article
Micro‐Photovoltaics: Dust‐Sized High‐Power‐Density Photovoltaic Cells on Si and SOI Substrates for Wafer‐Level‐Packaged Small Edge Computers (Adv. Mater. 49/2020).
Published in:
Advanced Materials, 2020, v. 32, n. 49, p. 1, doi. 10.1002/adma.202070369
By:
- Li, Ning;
- Han, Kevin;
- Spratt, William;
- Bedell, Stephen;
- Ren, Jinhan;
- Gunawan, Oki;
- Ott, John;
- Hopstaken, Marinus;
- Cabral, Cyril;
- Libsch, Frank;
- Subramanian, Chitra;
- Shahidi, Ghavam;
- Sadana, Devendra
Publication type:
Article
Dust‐Sized High‐Power‐Density Photovoltaic Cells on Si and SOI Substrates for Wafer‐Level‐Packaged Small Edge Computers.
Published in:
Advanced Materials, 2020, v. 32, n. 49, p. 1, doi. 10.1002/adma.202004573
By:
- Li, Ning;
- Han, Kevin;
- Spratt, William;
- Bedell, Stephen;
- Ren, Jinhan;
- Gunawan, Oki;
- Ott, John;
- Hopstaken, Marinus;
- Cabral, Cyril;
- Libsch, Frank;
- Subramanian, Chitra;
- Shahidi, Ghavam;
- Sadana, Devendra
Publication type:
Article
Earth-Abundant Chalcogenide Photovoltaic Devices with over 5% Efficiency Based on a Cu2BaSn(S,Se)4 Absorber.
Published in:
Advanced Materials, 2017, v. 29, n. 24, p. n/a, doi. 10.1002/adma.201606945
By:
- Shin, Donghyeop;
- Zhu, Tong;
- Huang, Xuan;
- Gunawan, Oki;
- Blum, Volker;
- Mitzi, David B.
Publication type:
Article
From Amorphous to Polycrystalline Rubrene: Charge Transport in Organic Semiconductors Paralleled with Silicon.
Published in:
Advanced Functional Materials, 2022, v. 32, n. 49, p. 1, doi. 10.1002/adfm.202206438
By:
- Euvrard, Julie;
- Gunawan, Oki;
- Kahn, Antoine;
- Rand, Barry P.
Publication type:
Article
Impact of PbI2 Passivation and Grain Size Engineering in CH3NH3PbI3 Solar Absorbers as Revealed by Carrier‐Resolved Photo‐Hall Technique.
Published in:
Advanced Energy Materials, 2019, v. 9, n. 47, p. N.PAG, doi. 10.1002/aenm.201902706
By:
- Euvrard, Julie;
- Gunawan, Oki;
- Mitzi, David B.
Publication type:
Article
Back Contact Engineering for Increased Performance in Kesterite Solar Cells.
Published in:
Advanced Energy Materials, 2017, v. 7, n. 15, p. n/a, doi. 10.1002/aenm.201602585
By:
- Antunez, Priscilla D.;
- Bishop, Douglas M.;
- Lee, Yun Seog;
- Gokmen, Tayfun;
- Gunawan, Oki;
- Gershon, Talia S.;
- Todorov, Teodor K.;
- Singh, Saurabh;
- Haight, Richard
Publication type:
Article
Photovoltaic Device with over 5% Efficiency Based on an n-Type Ag2ZnSnSe4 Absorber.
Published in:
Advanced Energy Materials, 2016, v. 6, n. 22, p. n/a, doi. 10.1002/aenm.201601182
By:
- Gershon, Talia;
- Sardashti, Kasra;
- Gunawan, Oki;
- Mankad, Ravin;
- Singh, Saurabh;
- Lee, Yun Seog;
- Ott, John A.;
- Kummel, Andrew;
- Haight, Richard
Publication type:
Article
Atomic Layer Deposited Aluminum Oxide for Interface Passivation of Cu2ZnSn(S,Se)4 Thin-Film Solar Cells.
Published in:
Advanced Energy Materials, 2016, v. 6, n. 12, p. n/a, doi. 10.1002/aenm.201600198
By:
- Lee, Yun Seog;
- Gershon, Talia;
- Todorov, Teodor K.;
- Wang, Wei;
- Winkler, Mark T.;
- Hopstaken, Marinus;
- Gunawan, Oki;
- Kim, Jeehwan
Publication type:
Article
Photovoltaic Materials and Devices Based on the Alloyed Kesterite Absorber (Ag xCu1-x)2ZnSnSe4.
Published in:
Advanced Energy Materials, 2016, v. 6, n. 10, p. n/a, doi. 10.1002/aenm.201502468
By:
- Gershon, Talia;
- Lee, Yun Seog;
- Antunez, Priscilla;
- Mankad, Ravin;
- Singh, Saurabh;
- Bishop, Doug;
- Gunawan, Oki;
- Hopstaken, Marinus;
- Haight, Richard
Publication type:
Article
Fill Factor Losses in Cu2ZnSn(S xSe1− x)4 Solar Cells: Insights from Physical and Electrical Characterization of Devices and Exfoliated Films.
Published in:
Advanced Energy Materials, 2016, v. 6, n. 3, p. n/a, doi. 10.1002/aenm.201501609
By:
- Tai, Kong Fai;
- Gunawan, Oki;
- Kuwahara, Masaru;
- Chen, Shi;
- Mhaisalkar, Subodh Gautam;
- Huan, Cheng Hon Alfred;
- Mitzi, David B.
Publication type:
Article
Monolithic Perovskite-CIGS Tandem Solar Cells via In Situ Band Gap Engineering.
Published in:
Advanced Energy Materials, 2015, v. 5, n. 23, p. 1, doi. 10.1002/aenm.201500799
By:
- Todorov, Teodor;
- Gershon, Talia;
- Gunawan, Oki;
- Lee, Yun Seog;
- Sturdevant, Charles;
- Chang, Liang‐Yi;
- Guha, Supratik
Publication type:
Article
Cu2ZnSnSe4 Thin-Film Solar Cells by Thermal Co-evaporation with 11.6% Efficiency and Improved Minority Carrier Diffusion Length.
Published in:
Advanced Energy Materials, 2015, v. 5, n. 7, p. n/a, doi. 10.1002/aenm.201401372
By:
- Lee, Yun Seog;
- Gershon, Talia;
- Gunawan, Oki;
- Todorov, Teodor K.;
- Gokmen, Tayfun;
- Virgus, Yudistira;
- Guha, Supratik
Publication type:
Article
Device Characteristics of CZTSSe Thin-Film Solar Cells with 12.6% Efficiency.
Published in:
Advanced Energy Materials, 2014, v. 4, n. 7, p. n/a, doi. 10.1002/aenm.201301465
By:
- Wang, Wei;
- Winkler, Mark T.;
- Gunawan, Oki;
- Gokmen, Tayfun;
- Todorov, Teodor K.;
- Zhu, Yu;
- Mitzi, David B.
Publication type:
Article
Beyond 11% Efficiency: Characteristics of State-of-the-Art Cu2ZnSn(S,Se)4 Solar Cells.
Published in:
Advanced Energy Materials, 2013, v. 3, n. 1, p. 34, doi. 10.1002/aenm.201200348
By:
- Todorov, Teodor K.;
- Tang, Jiang;
- Bag, Santanu;
- Gunawan, Oki;
- Gokmen, Tayfun;
- Zhu, Yu;
- Mitzi, David B.
Publication type:
Article
A High Efficiency Electrodeposited Cu2ZnSnS4 Solar Cell.
Published in:
Advanced Energy Materials, 2012, v. 2, n. 2, p. 253, doi. 10.1002/aenm.201100526
By:
- Ahmed, Shafaat;
- Reuter, Kathleen B.;
- Gunawan, Oki;
- Guo, Lian;
- Romankiw, Lubomyr T.;
- Deligianni, Hariklia
Publication type:
Article
Defects in Chalcopyrite Semiconductors: Defects in Cu(In,Ga)Se2 Chalcopyrite Semiconductors: A Comparative Study of Material Properties, Defect States, and Photovoltaic Performance (Adv. Energy Mater. 5/2011).
Published in:
Advanced Energy Materials, 2011, v. 1, n. 5, p. 844, doi. 10.1002/aenm.201190024
By:
- Cao, Qing;
- Gunawan, Oki;
- Copel, Matthew;
- Reuter, Kathleen B.;
- Chey, S. Jay;
- Deline, Vaughn R.;
- Mitzi, David B.
Publication type:
Article
Defects in Cu(In,Ga)Se2 Chalcopyrite Semiconductors: A Comparative Study of Material Properties, Defect States, and Photovoltaic Performance.
Published in:
Advanced Energy Materials, 2011, v. 1, n. 5, p. 845, doi. 10.1002/aenm.201100344
By:
- Cao, Qing;
- Gunawan, Oki;
- Copel, Matthew;
- Reuter, Kathleen B.;
- Chey, S. Jay;
- Deline, Vaughn R.;
- Mitzi, David B.
Publication type:
Article

Works by Gunawan, Oki

Electrodeposited Cu<sub>2</sub>ZnSnSe<sub>4</sub> thin film solar cell with 7% power conversion efficiency.

Solution-processed Cu(In,Ga)(S,Se)<sub>2</sub> absorber yielding a 15.2% efficient solar cell.

Thin film solar cell with 8.4% power conversion efficiency using an earth-abundant Cu<sub>2</sub>ZnSnS<sub>4</sub> absorber.

Device characteristics of a 10.1% hydrazine-processed Cu<sub>2</sub>ZnSn(Se,S)<sub>4</sub> solar cell.

Solar Cells: High Efficiency Cu<sub>2</sub>ZnSn(S,Se)<sub>4</sub> Solar Cells by Applying a Double In<sub>2</sub>S<sub>3</sub>/CdS Emitter (Adv. Mater. 44/2014).

High Efficiency Cu<sub>2</sub>ZnSn(S,Se)<sub>4</sub> Solar Cells by Applying a Double In<sub>2</sub>S<sub>3</sub>/CdS Emitter.

Comparing the Effect of Mn Substitution in Sulfide and Sulfoselenide‐Based Kesterite Solar Cells.

Ultrathin high band gap solar cells with improved efficiencies from the world's oldest photovoltaic material.

Micro‐Photovoltaics: Dust‐Sized High‐Power‐Density Photovoltaic Cells on Si and SOI Substrates for Wafer‐Level‐Packaged Small Edge Computers (Adv. Mater. 49/2020).

Dust‐Sized High‐Power‐Density Photovoltaic Cells on Si and SOI Substrates for Wafer‐Level‐Packaged Small Edge Computers.

Earth-Abundant Chalcogenide Photovoltaic Devices with over 5% Efficiency Based on a Cu<sub>2</sub>BaSn(S,Se)<sub>4</sub> Absorber.

From Amorphous to Polycrystalline Rubrene: Charge Transport in Organic Semiconductors Paralleled with Silicon.

Impact of PbI<sub>2</sub> Passivation and Grain Size Engineering in CH<sub>3</sub>NH<sub>3</sub>PbI<sub>3</sub> Solar Absorbers as Revealed by Carrier‐Resolved Photo‐Hall Technique.

Back Contact Engineering for Increased Performance in Kesterite Solar Cells.

Photovoltaic Device with over 5% Efficiency Based on an n-Type Ag<sub>2</sub>ZnSnSe<sub>4</sub> Absorber.

Atomic Layer Deposited Aluminum Oxide for Interface Passivation of Cu<sub>2</sub>ZnSn(S,Se)<sub>4</sub> Thin-Film Solar Cells.

Photovoltaic Materials and Devices Based on the Alloyed Kesterite Absorber (Ag <sub>x</sub>Cu<sub>1-</sub><sub>x</sub>)<sub>2</sub>ZnSnSe<sub>4</sub>.

Fill Factor Losses in Cu<sub>2</sub>ZnSn(S <sub>x</sub>Se<sub>1− x</sub>)<sub>4</sub> Solar Cells: Insights from Physical and Electrical Characterization of Devices and Exfoliated Films.

Monolithic Perovskite-CIGS Tandem Solar Cells via In Situ Band Gap Engineering.

Cu<sub>2</sub>ZnSnSe<sub>4</sub> Thin-Film Solar Cells by Thermal Co-evaporation with 11.6% Efficiency and Improved Minority Carrier Diffusion Length.

Device Characteristics of CZTSSe Thin-Film Solar Cells with 12.6% Efficiency.

Beyond 11% Efficiency: Characteristics of State-of-the-Art Cu<sub>2</sub>ZnSn(S,Se)<sub>4</sub> Solar Cells.

A High Efficiency Electrodeposited Cu<sub>2</sub>ZnSnS<sub>4</sub> Solar Cell.

Defects in Chalcopyrite Semiconductors: Defects in Cu(In,Ga)Se<sub>2</sub> Chalcopyrite Semiconductors: A Comparative Study of Material Properties, Defect States, and Photovoltaic Performance (Adv. Energy Mater. 5/2011).

Defects in Cu(In,Ga)Se<sub>2</sub> Chalcopyrite Semiconductors: A Comparative Study of Material Properties, Defect States, and Photovoltaic Performance.