Abstract
SnO2 recently has attracted particular attention as a powerful buffer layer for organic optoelectronic devices due to its outstanding properties such as high electron mobility, suitable band alignment, and high optical transparency. Here, we report on facile low-temperature solution-processed SnO2 nanoparticles (NPs) in applications for a cathode buffer layer (CBL) of inverted organic solar cells (iOSCs). The conduction band energy of SnO2 NPs estimated by ultraviolet photoelectron spectroscopy was 4.01 eV, a salient feature that is necessary for an appropriate CBL. Using SnO2 NPs as CBL derived from a 0.1 M precursor concentration, P3HT:PC60BM-based iOSCs showed the best power conversion efficiency (PCE) of 2.9%. The iOSC devices using SnO2 NPs as CBL revealed excellent long-term device stabilities, and the PCE was retained at ∼95% of its initial value after 10 weeks in ambient air. These solution-processed SnO2 NPs are considered to be suitable for the low-cost, high throughput roll-to-roll process on a flexible substrate for optoelectronic devices.
| Original language | English |
|---|---|
| Pages (from-to) | 1645-1653 |
| Number of pages | 9 |
| Journal | ACS Applied Materials and Interfaces |
| Volume | 9 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2017 Jan 1 |
| Externally published | Yes |
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Keywords
- Cathode buffer layer
- Inverted organic solar cells
- Low-temperature synthesis
- Nanoparticle morphology
- SnO2 nanoparticles
- Solution-processed metal oxide
ASJC Scopus subject areas
- Materials Science(all)
Cite this
Low-temperature solution-processed SnO2 nanoparticles as a cathode buffer layer for inverted organic solar cells. / Tran, Van Huong; Ambade, Rohan B.; Ambade, Swapnil B.; Lee, Soo Hyoung; Lee, In-Hwan.
In: ACS Applied Materials and Interfaces, Vol. 9, No. 2, 01.01.2017, p. 1645-1653.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Low-temperature solution-processed SnO2 nanoparticles as a cathode buffer layer for inverted organic solar cells
AU - Tran, Van Huong
AU - Ambade, Rohan B.
AU - Ambade, Swapnil B.
AU - Lee, Soo Hyoung
AU - Lee, In-Hwan
PY - 2017/1/1
Y1 - 2017/1/1
N2 - SnO2 recently has attracted particular attention as a powerful buffer layer for organic optoelectronic devices due to its outstanding properties such as high electron mobility, suitable band alignment, and high optical transparency. Here, we report on facile low-temperature solution-processed SnO2 nanoparticles (NPs) in applications for a cathode buffer layer (CBL) of inverted organic solar cells (iOSCs). The conduction band energy of SnO2 NPs estimated by ultraviolet photoelectron spectroscopy was 4.01 eV, a salient feature that is necessary for an appropriate CBL. Using SnO2 NPs as CBL derived from a 0.1 M precursor concentration, P3HT:PC60BM-based iOSCs showed the best power conversion efficiency (PCE) of 2.9%. The iOSC devices using SnO2 NPs as CBL revealed excellent long-term device stabilities, and the PCE was retained at ∼95% of its initial value after 10 weeks in ambient air. These solution-processed SnO2 NPs are considered to be suitable for the low-cost, high throughput roll-to-roll process on a flexible substrate for optoelectronic devices.
AB - SnO2 recently has attracted particular attention as a powerful buffer layer for organic optoelectronic devices due to its outstanding properties such as high electron mobility, suitable band alignment, and high optical transparency. Here, we report on facile low-temperature solution-processed SnO2 nanoparticles (NPs) in applications for a cathode buffer layer (CBL) of inverted organic solar cells (iOSCs). The conduction band energy of SnO2 NPs estimated by ultraviolet photoelectron spectroscopy was 4.01 eV, a salient feature that is necessary for an appropriate CBL. Using SnO2 NPs as CBL derived from a 0.1 M precursor concentration, P3HT:PC60BM-based iOSCs showed the best power conversion efficiency (PCE) of 2.9%. The iOSC devices using SnO2 NPs as CBL revealed excellent long-term device stabilities, and the PCE was retained at ∼95% of its initial value after 10 weeks in ambient air. These solution-processed SnO2 NPs are considered to be suitable for the low-cost, high throughput roll-to-roll process on a flexible substrate for optoelectronic devices.
KW - Cathode buffer layer
KW - Inverted organic solar cells
KW - Low-temperature synthesis
KW - Nanoparticle morphology
KW - SnO2 nanoparticles
KW - Solution-processed metal oxide
UR - http://www.scopus.com/inward/record.url?scp=85018395876&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85018395876&partnerID=8YFLogxK
U2 - 10.1021/acsami.6b10857
DO - 10.1021/acsami.6b10857
M3 - Article
AN - SCOPUS:85018395876
VL - 9
SP - 1645
EP - 1653
JO - ACS applied materials & interfaces
JF - ACS applied materials & interfaces
SN - 1944-8244
IS - 2
ER -