PMID- 26413641
OWN - NLM
STAT- MEDLINE
DCOM- 20151130
LR  - 20190715
IS  - 1533-4880 (Print)
IS  - 1533-4880 (Linking)
VI  - 15
IP  - 3
DP  - 2015 Mar
TI  - Effect of Blend Composition on Binary Organic Solar Cells Using a Low Band Gap 
      Polymer.
PG  - 2204-11
AB  - This report investigates the influence of the solution blend composition of 
      binary bulk heterojunction organic solar cells composed of 
      poly(2,1,3-benzothiadiazole-4,7-diyl[4,4-bis(2-ethylhexyl)-4H- 
      cyclopenta[2,1-b:3,4-b'dithiophene-2,6-diy]] (PCPDTBT) and [6,6]-phenyl C71 
      butyric acid methyl ester (PC71BM). The blend polymer:fullerene composition was 
      varied from 1:1 (50 wt% PC71 BM) to 2:9 (82 wt% PC71 BM). Increasing the amount 
      of polymer in the blend results in the greatest overall absorption, as the donor 
      material PCPDTBT is the main contributor to absorption. However, high polymer 
      content leads to poor photovoltaic performance. For this material combination, 
      the optimum blend polymer:fullerene composition was found to be 2:7. Increasing 
      the fullerene content in the blend led to a significant improvement in the 
      internal quantum efficiency of devices. This was correlated with an increase of 
      the electron mobility, as the fullerene content was increased. Improved electron 
      transport, leading to more balanced transport between electrons and holes, 
      significantly improved the short circuit current density (Jsc) and fill factor 
      (FF).
FAU - Wright, Matthew
AU  - Wright M
FAU - Lin, Rui
AU  - Lin R
FAU - Tayebjee, Murad J Y
AU  - Tayebjee MJ
FAU - Yang, Xiaohan
AU  - Yang X
FAU - Veettil, Binesh Puthen
AU  - Veettil BP
FAU - Wen, Xiaoming
AU  - Wen X
FAU - Uddin, Ashraf
AU  - Uddin A
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - United States
TA  - J Nanosci Nanotechnol
JT  - Journal of nanoscience and nanotechnology
JID - 101088195
RN  - 0 (Fullerenes)
RN  - 0 (Polymers)
RN  - 0 (Thiadiazoles)
RN  - 0 
      (poly(2,6-(4,4-bis(2-ethylhexyl)-4H-cyclopenta(2,1-b-3,4-b0)dithiophene))-alt-4,7-(2,1,3-benzothiadiazole))
SB  - IM
MH  - *Electric Power Supplies
MH  - Electrochemistry
MH  - Electron Transport
MH  - Fullerenes/chemistry
MH  - Polymers/*chemistry
MH  - *Solar Energy
MH  - Thiadiazoles/*chemistry
EDAT- 2015/09/29 06:00
MHDA- 2015/12/15 06:00
CRDT- 2015/09/29 06:00
PHST- 2015/09/29 06:00 [entrez]
PHST- 2015/09/29 06:00 [pubmed]
PHST- 2015/12/15 06:00 [medline]
AID - 10.1166/jnn.2015.9873 [doi]
PST - ppublish
SO  - J Nanosci Nanotechnol. 2015 Mar;15(3):2204-11. doi: 10.1166/jnn.2015.9873.