专利号:US-7786324-B2 优先权日:2005-02-03 标 题 :Method for producing borazine compound 发明人:YAMAMOTO TETSUYA; KAMIYAMA TAKUYA 权利人:NIPPON CATALYTIC CHEM IND 摘要:In a synthesis of a borazine compound by a reaction of an alkali boron hydride represented by ABH 4 (A represents lithium atom, sodium atom or potassium atom) and an amine salt represented by (RNH 3 ) n X (R represents a hydrogen atom or an alkyl group, X represents a sulfate group or a halogen atom, and n is 1 or 2), or b) diborane (B 2 H 6 ) and an amine represented by RNH 2 (R represents a hydrogen atom or an alkyl group), a water content of raw material is controlled below a prescribed value; mixed solvents containing solvents each having a prescribed boiling point are used as a solvent for reaction; or a raw material is gradually fed to a reactor in a reaction. Or, a borazine compound is subjected to distillation purification treatment and filtration treatment. By such a method, a high purity of borazine compound can be produced safely and in a high yield.
专利号:US-11680035-B2 优先权日:2020-08-03 标 题 :Hole transport material, synthesis thereof, and solar cell 发明人:LIU YUHANG; ZAKEERUDDIN SHAIK MOHAMMED; GRAETZEL MICHAEL; BAUER MICHAEL; BÄUERLE PETER 权利人:ECOLE POLYTECHNIQUE FED LAUSANNE EPFL 摘要:The organic small molecule 4,4′,4″,4′″-(5,5-dimethoxycyclopenta-1,3-diene-1,2,3,4-tetrayl)tetrakis(N,N-bis(4-methoxyhenyl)aniline (CPDA 1), shows electrochemical properties very close to spiro-OMeTAD indicating a high compatibility with PSC systems for its use as a hole transport material (HTM). The implementation of the cyclopentadiene dimethyl acetale core helps to red shift the absorption onset of the films as well as provide a flexible spatial configuration of the molecule, which is essential for optimum film forming properties. Transient and steady state emission analysis as well as hole mobility measurements indicate that the new HTM allows a better charge extraction, transport and separation than the spiro-OMeTAD reference compound. PSCs based on the new CPDA 1 show a PCE close to 23% with lower hysteresis than its analogue. Stability studies performed under ambient, heated and humid conditions all showed that CPDA 1 is over-performing spiro-OMeTAD. Furthermore the production cost of CPDA 1 is about 10 times lower than that of spiro-OMeTAD, contributing to render PSCs more affordable.
专利号:US-10538540-B2 优先权日:2016-06-29 标 题:Perovskite core-shell nanocrystals 发明人:SUM TZE CHIEN; CHEN WEIQIANG; MHAISALKAR SUBODH GAUTAM; MATHEWS NRIPAN; VELDHUIS Sjoerd Antonius; BHAUMIK SAIKAT 权利人:UNIV NANYANG TECH 摘要:Provided is a nanocrystal comprising a core comprised in a shell, wherein the core comprises a first material of a perovskite structure comprising a first organic cation not exceeding a molar weight of about 45 g/mol, a first divalent metal and a first counter anion, and, wherein the shell comprises a second material of a perovskite structure comprising a second organic cation having a molar weight between about 74 g/mol and about 187 g/mol, optionally the first organic cation, a second divalent metal and a second counter anion. Provided is further a matrix having the nanocrystal as defined above encapsulated therein. Provided is further a process for the synthesis of a nanocrystal comprising a core comprised in a shell, the process comprising a) preparing a precursor solution containing at least one divalent metal, a first organic cation not exceeding a molar weight of about 45 g/mol, a second organic cation having a molar weight between about 74 g/mol and about 187 g/mol, and at least one counter anion in a polar aprotic solvent; and b) subjecting the precursor solution to a non-polar solvent to form the nanocrystal.
专利号:CA-2728987-C 优先权日:2008-05-16 标 题 :Green synthesis of nanometals using plant extracts and use thereof
专利号:CA-3072159-C 优先权日:2017-08-10 标题 :Method for synthesis of films made of light-absorbing material with perovskite-like structure
专利号:US-2012055873-A1 优先权日:2008-05-16 标题 :Green synthesis of nanometals using plant extracts and use thereof
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