Study on the Feasibility of Bacteriorhodopsin as Bio-Photosensitizer in Excitonic Solar Cell: A First Report Export

@article{Velmurugan2009, abstract = {Bacteriorhodopsin (bR) is a membrane protein found in the archae Halobacterium salinarum. Here, we studied wild type bR and especially the triple mutant bR, 3Glu [E9Q/E194Q/E204Q], in combination with wide gap semiconductor TiO2 for their suitability as efficient light harvester in solar cell. Our differential scanning calorimetry data show thermal robustness of bR wild type and 3Glu mutant, which make them good candidates as photosensitizer in solar cells. Molecular modeling indicates that binding of bR to the exposed oxygen atoms of anatase TiO2 is favorable for electron transfer and directed by local, small distance interactions. A solar cell, based on bR wild type and bR triple mutant immobilized on nanocrystalline TiO2 film was successfully constructed. The photocurrent density-photo voltage (J-V) characteristics of bio-sensitized solar cell (BSSC), based on the wild type bR and 3Glu mutant adsorbed on nanocrystalline TiO2 film electrode were measured. The results show that the 3Glu mutant displays better photoelectric performance compared to the wild type bR, giving a short-circuit photocurrent density (JSC) of 0.09 mA/cm2 and the open-circuit photovoltage (VOC) 0.35 V, under an illumination intensity of 40 mW/cm2.}, author = {Thavasi, Velmurugan and Lazarova, Tzvetana and Filipek, Slawomir and Kolinski, Michal and Querol, Enric and Kumar, Abhishek and Ramakrishna, Seeram and Padros, Esteve and Renugopalakrishnan, V.}, citeulike-article-id = {6060671}, citeulike-linkout-0 = {http://dx.doi.org/10.1166/jnn.2009.SI07}, citeulike-linkout-1 = {http://www.ingentaconnect.com/content/asp/jnn/2009/00000009/00000003/art00003}, citeulike-linkout-2 = {http://www.northeastern.edu/bionano/bio-pdfs/J%20N%20N%20Galley%20Bio%20Solar%20Cell.pdf}, doi = {10.1166/jnn.2009.SI07}, issn = {1533-4880}, journal = {Journal of Nanoscience and Nanotechnology}, keywords = {bacteriorhodopsin, biomolecular-electronics, photovoltaics}, month = {March}, pages = {1679--1687}, posted-at = {2009-11-03 16:42:08}, priority = {2}, publisher = {American Scientific Publishers}, title = {Study on the Feasibility of Bacteriorhodopsin as Bio-Photosensitizer in Excitonic Solar Cell: A First Report}, url = {http://dx.doi.org/10.1166/jnn.2009.SI07}, year = {2009} }

TY - JOUR ID - Velmurugan2009 L3 - citeulike-article-id:6060671 N2 - Bacteriorhodopsin (bR) is a membrane protein found in the archae Halobacterium salinarum. Here, we studied wild type bR and especially the triple mutant bR, 3Glu [E9Q/E194Q/E204Q], in combination with wide gap semiconductor TiO2 for their suitability as efficient light harvester in solar cell. Our differential scanning calorimetry data show thermal robustness of bR wild type and 3Glu mutant, which make them good candidates as photosensitizer in solar cells. Molecular modeling indicates that binding of bR to the exposed oxygen atoms of anatase TiO2 is favorable for electron transfer and directed by local, small distance interactions. A solar cell, based on bR wild type and bR triple mutant immobilized on nanocrystalline TiO2 film was successfully constructed. The photocurrent density-photo voltage (J-V) characteristics of bio-sensitized solar cell (BSSC), based on the wild type bR and 3Glu mutant adsorbed on nanocrystalline TiO2 film electrode were measured. The results show that the 3Glu mutant displays better photoelectric performance compared to the wild type bR, giving a short-circuit photocurrent density (JSC) of 0.09 mA/cm2 and the open-circuit photovoltage (VOC) 0.35 V, under an illumination intensity of 40 mW/cm2. JF - Journal of Nanoscience and Nanotechnology SN - 1533-4880 EP - 1687 TI - Study on the Feasibility of Bacteriorhodopsin as Bio-Photosensitizer in Excitonic Solar Cell: A First Report PB - American Scientific Publishers SP - 1679 KW - bacteriorhodopsin KW - biomolecular-electronics KW - photovoltaics AU - Thavasi, Velmurugan AU - Lazarova, Tzvetana AU - Filipek, Slawomir AU - Kolinski, Michal AU - Querol, Enric AU - Kumar, Abhishek AU - Ramakrishna, Seeram AU - Padros, Esteve AU - Renugopalakrishnan, V PY - 2009/03// UR - http://dx.doi.org/10.1166/jnn.2009.SI07 ER -