01080nas a2200169   4500008004100000245011300041210006900154260000800223300001600231490000700247520043400254100002200688700002100710700001900731700002800750856013200778       2011                        eng d00aSolution-processed heterojunction solar cells based on p-type PbS quantum dots and n-type Bi2S3 nanocrystals0 aSolutionprocessed heterojunction solar cells based on ptype PbS   cAUG  a3712–37170 v233 a<p>Bi2S3 nanocrystals are employed as an n-type, non-toxic, inorganic, solution-processed semiconductor in thin film solar cells. The first solution processed-inorganic p-n junction based on p-type PbS QDs and n-type Bi2S3 nanocrystals with both phases contributing to photocarrier generation is demonstrated. The reported devices show a power conversion efficiency of 1.6% for 860 nm PbS QDs and over 1% for 1300 nm PbS QDs.</p>1 aRath, Arup, Kumar1 aBernechea, Maria1 aMartinez, Luis1 aKonstantatos, Gerasimos  uhttps://library.ncl.res.in/content/solution-processed-heterojunction-solar-cells-based-p-type-pbs-quantum-dots-and-n-type-bi2s301647nas a2200193   4500008004100000245009600041210006900137260000800206300001400214490000600228520095200234100002201186700002101208700001901229700003001248700001901278700002801297856012801325       2012                        eng d00aSolution-processed inorganic bulk nano-heterojunctions and their application to solar cells0 aSolutionprocessed inorganic bulk nanoheterojunctions and their a  cJUL  a529–5340 v63 a<p>In the last decade, solution-processed quantum dot/nanocrystal solar cells have emerged as a very promising technology for third-generation thin-film photovoltaics because of their low cost and high energy-harnessing potential. Quantum dot solar cell architectures developed to date have relied on the use of bulk-like thin films of colloidal quantum dots. Here, we introduce the bulk nano-heterojunction concept for inorganic solution-processed semiconductors. This platform can be readily implemented by mixing different semiconductor nanocrystals in solution and allows for the development of optoelectronic nanocomposite materials with tailored optoelectronic properties. We present bulk nano-heterojunction solar cells based on n-type Bi2S3 nanocrystals and p-type PbS quantum dots, which demonstrate a more than a threefold improvement in device performance compared to their bilayer analogue, as a result of suppressed recombination.</p>1 aRath, Arup, Kumar1 aBernechea, Maria1 aMartinez, Luis1 ade Arquer, Pelayo, Garcia1 aOsmond, Johann1 aKonstantatos, Gerasimos  uhttps://library.ncl.res.in/content/solution-processed-inorganic-bulk-nano-heterojunctions-and-their-application-solar-cells